This document describes the design and analysis of an indexing type drill jig. It begins with introducing the purpose and basic elements of jigs and fixtures in manufacturing. It then details the design process which includes modeling the component, base plate, locators, clamps, bushes, and indexing mechanism. An assembly of the drill jig is presented and analyzed using finite element analysis software. The results of the analysis show the clamping force is greater than the drilling force, indicating the design is safe and effective for its intended machining operation. In conclusion, the indexing drill jig design meets the objectives of locating and clamping the component accurately and efficiently for mass production.
Design and analysis of jig and welding fixturesagmech24
The fixture is a collection of working holdings
that holds, supports, and locates the workpiece.
Depending on their application, the fixture is needed in
different industries. The locating pin is used to restrict
the panel's degree of freedom. The panel will affect the
loading and unloading of the panel due to a fixed
position pin, so we have to configure the shift tool to
change the positioning pin during loading and unloading
of the panel. In this project we will create a CAD model
with a jig and welding fixture. The change unit or the
position unit will be designed as compact as possible,
depending on the need for the jig and the welding
fixture. This project is designed to move the positioning
pin between the locating pin and the panel to avoid
interference during loading and unloading.
Design and analysis of jig and welding fixturesagmech24
The fixture is a collection of working holdings
that holds, supports, and locates the workpiece.
Depending on their application, the fixture is needed in
different industries. The locating pin is used to restrict
the panel's degree of freedom. The panel will affect the
loading and unloading of the panel due to a fixed
position pin, so we have to configure the shift tool to
change the positioning pin during loading and unloading
of the panel. In this project we will create a CAD model
with a jig and welding fixture. The change unit or the
position unit will be designed as compact as possible,
depending on the need for the jig and the welding
fixture. This project is designed to move the positioning
pin between the locating pin and the panel to avoid
interference during loading and unloading.
GEOMETRIC OPTIMIZATION OF CNC VERTICAL MILLING MACHINE BEDIjripublishers Ijri
In this paper, a machine bed will be selected for the complete analysis for both static and dynamic loads. Then investigation
is carried out to reduce the weight of the machine bed without deteriorating its structural rigidity and the accuracy
of the machine tool by adding ribs at the suitable locations.
Design and Fabrication of Turning Fixture and Drilling Jig for Exhaust Manifoldijtsrd
The successful running of any mass production depends upon the interchangeability to facilitate easy assembly and reduction of unit cost. Mass production methods demand a fast and easy method of positioning work for accurate operations on it. Jigs and fixtures are production tools used to accurately manufacture duplicate and interchangeable parts. Jigs and fixtures are specially designed so that large numbers of components can be machined or assembled identically, and to ensure interchangeability of components. To eliminate marking, punching, positioning, alignments etc. It will make easy, quick and consistently accurate locating, supporting and clamping the blank in alignment of the cutting tool. Guidance to the cutting tool like drill, reamer etc. Increase in productivity and maintain product quality consistently. It will reduce operators labour and skill “ requirement, Also reduce measurement and its cost .Enhancing technological capacity of the machine tools. Reduction of overall machining cost and also increases in interchangeability. Dr. S. G. Bhatwadekar | Mr. Aditya Arvind Yadav | Mr. Akshay Vilas Arekar | Mr. Sushant Subhash Chougule | Mr. Shrinath Yallapa Shirage | Mr. Yogesh Rajendra Ghodake"Design and Fabrication of Turning Fixture and Drilling Jig for Exhaust Manifold" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-3 , April 2018, URL: http://www.ijtsrd.com/papers/ijtsrd10891.pdf http://www.ijtsrd.com/engineering/mechanical-engineering/10891/design-and-fabrication-of-turning-fixture-and-drilling-jig-for-exhaust-manifold/dr-s-g-bhatwadekar
design and fabrication ofGear cutting attachment in lathe machineabes ec
In Today’s Fast Life Every One Wants To Save Time And Money, Even Small Scale Industrialist Wants To Earn More Profits With Given Limited Resources .Due To The Globalization The Competition Is Increasing Day By Day, Especially Micro Industries Is Facing Lot Of Trouble To Sustain In Throat Cutting Competition. So We Came Up With An Idea Of Saving Money By Desginning And Fabritacting of Attachment of gear cutting in lathe Which Can Save Money Of Small Industrialist By Avoiding The Subcontarction Of Works Which May Required Specail Machines .
Modelling and Analysis of CNC Milling Machine Bed with Composite Materialijsrd.com
Structural materials used in a machine tool have a decisive role in determining the productivity and accuracy of the part manufactured in it. The conventional structural materials used in precision machine tools such as cast iron and steel at high operating speeds develop positional errors due to the vibrations transferred into the structure. Faster cutting speeds can be acquired only by structure which has high stiffness and good damping characteristics. Clearly the life of a machine is inversely proportional to the levels of vibration that the machine is subjected. The further process is carried out to undergo the deformation, natural frequency and displacement using Static analysis, Modal analysis and Harmonic analysis respectively. Since the bed in machine tool plays a critical role in ensuring the precision and accuracy in components. It is one of the most important tool structures which tend to absorb the vibrations resulting from the cutting operation. To analyze the bed for possible material changes that could increase stiffness, reduce weight, improve damping characteristics and isolate natural frequency from the operating range. This was the main motivation behind the idea to go in for a composite model involving High Modulus Carbon Fiber Reinforced Polymer Composite Material (HM CFRP). Though carbon has good strength and stiffness properties but it lacks in damping requirements. On the other hand polymer, though it lacks in strength but it has good damping characteristics and it is used to hold the carbon fibers. This makes it ideal to combine these materials in a proper manner. In this work, a machine bed is selected for the analysis static loads. Then investigation is carried out to reduce the weight of the machine bed without deteriorating its structural rigidity. The 3D CAD model of the bed has been created by using commercial 3D modelling software and analyses were carried out using ANSYS.
An Advanced Exploration on Fixture DesignIJERA Editor
Widely used in manufacturing, fixtures have a direct impact upon product manufacturing quality, productivity and cost, so much attention has already been paid to the research fixture design and many achievements in this field have been reported. In this paper, a literature survey of fixture design and automation over the past decade is proposed. First, an introduction is given on the fixture applications in industry. Then, significant works done in the design field, including their approaches, requirements and working principles are discussed. Finally, some prospective research trends are also discussed.
Computer aided fixture design for machining of key waysLaukik Raut
Eccentric shaft play an important role in application of
ginning machine. Machining of keyways on eccentric
shaft is a important task. Machining on simple shaft is
easy as compare to eccentric shaft by conventional
process. machining of keyways on eccentric shaft is a
time consuming process, so reducing this time is a main
aim.
The job having a cylindrical shape and number of
keyways are required on it at an different position. This
is a challenging task for design engineer and hence
Computer Aided Fixture Design (CAFD) is incorporated
in manufacturing industry. It deals with the integration
of CAD and CNC programming in CAM systems using
software’s for fixture design. Except V block, no other
option is available to hold cylindrical object and hence
special type of fixture is designed for this case, which can
be used for machining of keyway on eccentric shaft.
Fixtures reduce operation time and increases
productivity and high quality of operation is possible.
Geometric Modeling, Design and Analysis of Custom-Engineered Milling Cuttersijtsrd
The geometric modeling of the cutting tools is an important aspect for the design and manufacturing engineers from the viewpoint of shape realization. The geometry of cutting tools? surfaces based on two-dimensional (2D) projected geometry approach has certain limitations. This definition is also inadequate due to inaccuracy and non-applicability of the model for further manipulation. To address these issues, an accurate three-dimensional (3D) surface-based generic definition for a few families of custom-engineered milling cutters has been developed. The proposed geometric definition of the customized cutter is developed in terms of biparametric surface patches using proposed 3D rotational angles rather than the conventional 2D angles. The non-uniform rational B-spline (NURBS) curve(s) and generation of sweep surfaces based on it are utilized for the shape generation of cutting elements of the generic cutters. This representation scheme enables tooth shapes to be controlled by manipulating control polygons and sweep trajectories and in the process varied tool geometries can be generated. Further, an interface is developed that converts the proposed 3D parametric definition of the cutter into an intermediate neutral CAD format. This helps in rendering the cutter model in any CAD modeling environment. R. R. Karthi | B. Tamilarasu | S. Mukesh | K. M. Naveen Kumar"Geometric Modeling, Design and Analysis of Custom-Engineered Milling Cutters" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-3 , April 2018, URL: http://www.ijtsrd.com/papers/ijtsrd10986.pdf http://www.ijtsrd.com/engineering/mechanical-engineering/10986/geometric-modeling-design-and-analysis-of-custom-engineered-milling-cutters/r-r-karthi
Sand casting conventional and rapid prototyping manufacturing approacheseSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Cutting Parameters Optimization in Milling Of P – 20 Tool Steel And EN31B IOSR Journals
The objective of the paper is to obtain an optimal setting of CNC machining process parameters,
cutting speed, feed rate resulting in optimal values of the feed and radial forces while machining P – 20 tool
steel and EN31B with TiN coated tungsten carbide inserts. The effects of the selected process parameters on the
chosen characteristics and the subsequent optimal settings of the parameters have been accomplished using
Taguchi’s parameter design approach.The process parameters considered are – Cutting speed 3000rpm,
2500rpm and 2000rpm. Feed rate 200mm/min, 300mm/min and 400mm/min and depth of cut is 0.2mm.The
effect of these parameters on the feed force, radial force are considered for analysis.The analysis of the results
shows that the optimal settings for low values of feed and radial forces are high cutting speed, low feed rate and
depth of cut.The thrust force and feed force are also taken experimentally using dynamometer for above Cutting
speeds, feed rate and depth of cut. The optimal values for speed, feed rate and depth of cut are taken using
Taguchi technique.Taguchi methods are statistical methods developed by Genichi Taguchi to improve the
quality of manufactured goods, and more recently also applied to, engineering, biotechnology, marketing and
advertising.Process used in this project is milling process. Machine selected is Vertical milling center. Machine
model selected is BFW Agni 45. Modeling is done in Pro/Engineer and analysis is done in ANSYS.
GEOMETRIC OPTIMIZATION OF CNC VERTICAL MILLING MACHINE BEDIjripublishers Ijri
In this paper, a machine bed will be selected for the complete analysis for both static and dynamic loads. Then investigation
is carried out to reduce the weight of the machine bed without deteriorating its structural rigidity and the accuracy
of the machine tool by adding ribs at the suitable locations.
Design and Fabrication of Turning Fixture and Drilling Jig for Exhaust Manifoldijtsrd
The successful running of any mass production depends upon the interchangeability to facilitate easy assembly and reduction of unit cost. Mass production methods demand a fast and easy method of positioning work for accurate operations on it. Jigs and fixtures are production tools used to accurately manufacture duplicate and interchangeable parts. Jigs and fixtures are specially designed so that large numbers of components can be machined or assembled identically, and to ensure interchangeability of components. To eliminate marking, punching, positioning, alignments etc. It will make easy, quick and consistently accurate locating, supporting and clamping the blank in alignment of the cutting tool. Guidance to the cutting tool like drill, reamer etc. Increase in productivity and maintain product quality consistently. It will reduce operators labour and skill “ requirement, Also reduce measurement and its cost .Enhancing technological capacity of the machine tools. Reduction of overall machining cost and also increases in interchangeability. Dr. S. G. Bhatwadekar | Mr. Aditya Arvind Yadav | Mr. Akshay Vilas Arekar | Mr. Sushant Subhash Chougule | Mr. Shrinath Yallapa Shirage | Mr. Yogesh Rajendra Ghodake"Design and Fabrication of Turning Fixture and Drilling Jig for Exhaust Manifold" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-3 , April 2018, URL: http://www.ijtsrd.com/papers/ijtsrd10891.pdf http://www.ijtsrd.com/engineering/mechanical-engineering/10891/design-and-fabrication-of-turning-fixture-and-drilling-jig-for-exhaust-manifold/dr-s-g-bhatwadekar
design and fabrication ofGear cutting attachment in lathe machineabes ec
In Today’s Fast Life Every One Wants To Save Time And Money, Even Small Scale Industrialist Wants To Earn More Profits With Given Limited Resources .Due To The Globalization The Competition Is Increasing Day By Day, Especially Micro Industries Is Facing Lot Of Trouble To Sustain In Throat Cutting Competition. So We Came Up With An Idea Of Saving Money By Desginning And Fabritacting of Attachment of gear cutting in lathe Which Can Save Money Of Small Industrialist By Avoiding The Subcontarction Of Works Which May Required Specail Machines .
Modelling and Analysis of CNC Milling Machine Bed with Composite Materialijsrd.com
Structural materials used in a machine tool have a decisive role in determining the productivity and accuracy of the part manufactured in it. The conventional structural materials used in precision machine tools such as cast iron and steel at high operating speeds develop positional errors due to the vibrations transferred into the structure. Faster cutting speeds can be acquired only by structure which has high stiffness and good damping characteristics. Clearly the life of a machine is inversely proportional to the levels of vibration that the machine is subjected. The further process is carried out to undergo the deformation, natural frequency and displacement using Static analysis, Modal analysis and Harmonic analysis respectively. Since the bed in machine tool plays a critical role in ensuring the precision and accuracy in components. It is one of the most important tool structures which tend to absorb the vibrations resulting from the cutting operation. To analyze the bed for possible material changes that could increase stiffness, reduce weight, improve damping characteristics and isolate natural frequency from the operating range. This was the main motivation behind the idea to go in for a composite model involving High Modulus Carbon Fiber Reinforced Polymer Composite Material (HM CFRP). Though carbon has good strength and stiffness properties but it lacks in damping requirements. On the other hand polymer, though it lacks in strength but it has good damping characteristics and it is used to hold the carbon fibers. This makes it ideal to combine these materials in a proper manner. In this work, a machine bed is selected for the analysis static loads. Then investigation is carried out to reduce the weight of the machine bed without deteriorating its structural rigidity. The 3D CAD model of the bed has been created by using commercial 3D modelling software and analyses were carried out using ANSYS.
An Advanced Exploration on Fixture DesignIJERA Editor
Widely used in manufacturing, fixtures have a direct impact upon product manufacturing quality, productivity and cost, so much attention has already been paid to the research fixture design and many achievements in this field have been reported. In this paper, a literature survey of fixture design and automation over the past decade is proposed. First, an introduction is given on the fixture applications in industry. Then, significant works done in the design field, including their approaches, requirements and working principles are discussed. Finally, some prospective research trends are also discussed.
Computer aided fixture design for machining of key waysLaukik Raut
Eccentric shaft play an important role in application of
ginning machine. Machining of keyways on eccentric
shaft is a important task. Machining on simple shaft is
easy as compare to eccentric shaft by conventional
process. machining of keyways on eccentric shaft is a
time consuming process, so reducing this time is a main
aim.
The job having a cylindrical shape and number of
keyways are required on it at an different position. This
is a challenging task for design engineer and hence
Computer Aided Fixture Design (CAFD) is incorporated
in manufacturing industry. It deals with the integration
of CAD and CNC programming in CAM systems using
software’s for fixture design. Except V block, no other
option is available to hold cylindrical object and hence
special type of fixture is designed for this case, which can
be used for machining of keyway on eccentric shaft.
Fixtures reduce operation time and increases
productivity and high quality of operation is possible.
Geometric Modeling, Design and Analysis of Custom-Engineered Milling Cuttersijtsrd
The geometric modeling of the cutting tools is an important aspect for the design and manufacturing engineers from the viewpoint of shape realization. The geometry of cutting tools? surfaces based on two-dimensional (2D) projected geometry approach has certain limitations. This definition is also inadequate due to inaccuracy and non-applicability of the model for further manipulation. To address these issues, an accurate three-dimensional (3D) surface-based generic definition for a few families of custom-engineered milling cutters has been developed. The proposed geometric definition of the customized cutter is developed in terms of biparametric surface patches using proposed 3D rotational angles rather than the conventional 2D angles. The non-uniform rational B-spline (NURBS) curve(s) and generation of sweep surfaces based on it are utilized for the shape generation of cutting elements of the generic cutters. This representation scheme enables tooth shapes to be controlled by manipulating control polygons and sweep trajectories and in the process varied tool geometries can be generated. Further, an interface is developed that converts the proposed 3D parametric definition of the cutter into an intermediate neutral CAD format. This helps in rendering the cutter model in any CAD modeling environment. R. R. Karthi | B. Tamilarasu | S. Mukesh | K. M. Naveen Kumar"Geometric Modeling, Design and Analysis of Custom-Engineered Milling Cutters" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-3 , April 2018, URL: http://www.ijtsrd.com/papers/ijtsrd10986.pdf http://www.ijtsrd.com/engineering/mechanical-engineering/10986/geometric-modeling-design-and-analysis-of-custom-engineered-milling-cutters/r-r-karthi
Sand casting conventional and rapid prototyping manufacturing approacheseSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Cutting Parameters Optimization in Milling Of P – 20 Tool Steel And EN31B IOSR Journals
The objective of the paper is to obtain an optimal setting of CNC machining process parameters,
cutting speed, feed rate resulting in optimal values of the feed and radial forces while machining P – 20 tool
steel and EN31B with TiN coated tungsten carbide inserts. The effects of the selected process parameters on the
chosen characteristics and the subsequent optimal settings of the parameters have been accomplished using
Taguchi’s parameter design approach.The process parameters considered are – Cutting speed 3000rpm,
2500rpm and 2000rpm. Feed rate 200mm/min, 300mm/min and 400mm/min and depth of cut is 0.2mm.The
effect of these parameters on the feed force, radial force are considered for analysis.The analysis of the results
shows that the optimal settings for low values of feed and radial forces are high cutting speed, low feed rate and
depth of cut.The thrust force and feed force are also taken experimentally using dynamometer for above Cutting
speeds, feed rate and depth of cut. The optimal values for speed, feed rate and depth of cut are taken using
Taguchi technique.Taguchi methods are statistical methods developed by Genichi Taguchi to improve the
quality of manufactured goods, and more recently also applied to, engineering, biotechnology, marketing and
advertising.Process used in this project is milling process. Machine selected is Vertical milling center. Machine
model selected is BFW Agni 45. Modeling is done in Pro/Engineer and analysis is done in ANSYS.
A Review on Design of a Fixture for Rear Coverijsrd.com
In fixtures which are used for machining process, minimizing work piece deformation due to clamping and cutting forces is necessary due to which machining accuracy can be maintained. The different methodologies used for clamping operation in different application by various authors are discussed in this paper. Fixtures are required in different industries according to specific application. Rear Cover is important part in agriculture tractor. The fixture set up for Rear Cover is done manually, which leads to machining defects, poor quality, increase in rejection rate, more cycle time and more hectic to operator. So, there is need to develop system which can help in achieve quality, increase productivity, elimination of human error, reduction in cycle time.
Design & development of multi orientation drilling special purpose machine su...IJERD Editor
The growth of Indian manufacturing sector depends largely on its productivity & quality. Productivity depends upon many factors, one of the major factors being manufacturing efficiency with which the operation /activities are carried out in the organization. Productivity can be improved by reducing the total machining time, combining the operations etc. In case of mass production where variety of jobs is less and quantity to be produced is huge, it is very essential to produce the job at a faster rate. This is not possible if we carry out the production by using general purpose machines. The best way to improve the production rate (productivity) along with quality is by use of special purpose machine. Usefulness and performance of the existing radial drilling machine will be increased by designing and development of multispindle drilling head attachment. This paper deals with such development undertaken for similar job under consideration along with industrial case study. Keywords- Various methods, Design, Manufacturing, Statistical process control (Process capability)
DESIGN OF FIXTURE OF CONNECTING ROD FOR BORING OPERATIONijsrd.com
Connecting rod is very important part of engine. It should be accurately machined with the acceptable tolerance. Also the fluctuations of dimensions in work-piece to work piece should be minimum so that it will be easier to assemble in engine. But it has been observed that the required dimensions for the bolt diameter and smaller end diameter for the connecting rod are not continuously achievable by using the existing fixture. The diameters required of the bolts and the smaller end of the said connecting rod are 10±0.05 mm and 24±0.01 mm respectively The aim of this project is to design and development of a new fixture for machining (Boring) operation using designing software's i.e. Pro E and analysis using ANSYS ,which can eliminate the said problems. And the production rate will also increase up to 15% which is quite objective. So for that, a new hydraulic fixture is designed and observed that dimensional accuracy, increased production rate up to 15% and more output per day with boring operation. Which defines process is satisfactory enough and validates the project.
PPCE unit 2 (ME8793 – PROCESS PLANNING AND COST ESTIMATION )TAMILMECHKIT
UNIT 2 – PROCESS PLANNING ACTIVITIES
Process parameters calculation for various production processes-Selection jigs and fixtures- Selection of quality assurance methods - Set of documents for process planning-Economics of process planning- case studies
Process parameters calculation for various production processes-Selection jigs and fixtures election of quality assurance methods - Set of documents for process planning-Economics of process planning.
Design of progressive press tool for an alpha meter componenteSAT Journals
Abstract The sheet metal manufacturing Design and development of different components is one of the important phases. like shearing, piercing and blanking etc. There is a highly complex process and leads to various uncertainties. Progressive tool components are modeled in solid works with selected dimensions from the given 2D diagram and design calculations.. Results obtained from theoretical calculations are in good agreement with empirical dimensions of CAD model. Keywords: Die, punch, piercing, CAD.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
zkStudyClub - Reef: Fast Succinct Non-Interactive Zero-Knowledge Regex ProofsAlex Pruden
This paper presents Reef, a system for generating publicly verifiable succinct non-interactive zero-knowledge proofs that a committed document matches or does not match a regular expression. We describe applications such as proving the strength of passwords, the provenance of email despite redactions, the validity of oblivious DNS queries, and the existence of mutations in DNA. Reef supports the Perl Compatible Regular Expression syntax, including wildcards, alternation, ranges, capture groups, Kleene star, negations, and lookarounds. Reef introduces a new type of automata, Skipping Alternating Finite Automata (SAFA), that skips irrelevant parts of a document when producing proofs without undermining soundness, and instantiates SAFA with a lookup argument. Our experimental evaluation confirms that Reef can generate proofs for documents with 32M characters; the proofs are small and cheap to verify (under a second).
Paper: https://eprint.iacr.org/2023/1886
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
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Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
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A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
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A tale of scale & speed: How the US Navy is enabling software delivery from l...
H012214651
1. IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE)
e-ISSN: 2278-1684,p-ISSN: 2320-334X, Volume 12, Issue 2 Ver. I (Mar - Apr. 2015), PP 46-51
www.iosrjournals.org
DOI: 10.9790/1684-12214651 www.iosrjournals.org 46 | Page
Design and Analysis of Indexing Type of Drill Jig
NBV Lakshmi Kumari1
, G.Prsasnna Kumar2
1
Assistant Professor, Mechanical Engineering Muffakham Jah College of Engineering and Technology, India
2
Assistant Professor, Mechanical Engineering Muffakham Jah College of Engineering and Technology, India
Abstract: In the context of the advanced technology engineers and scientists have visualized and
conceptualized many designs and success of their designs and concepts is the materialization of their designs. In
short it can be said that production and manufacturing units consummate the design process. Thus the industry
which gives shape to a theoretical design is a very potential and influential element in the technological
development. The main objective of using jigs and fixtures in an industry is to achieve the Interchangeable Part
Concept, and these are mainly used where production of goods is on large scale. The basic elements in the
design of indexing type of drill jig is the component model, location, orientation and clamping. The scope of this
paper is to design an indexing type of drill jig for a component having angular holes at 25 deg such the design
is validated and verified. The present paper entitled “Design and Analysis of Indexing type of Drill Jig” is the
work done for the design and analysis of Jig. Jigs are mainly used for mass production and for interchangeable
parts concept, for a long period in the manufacturing of Jigs. Modeling is done using SOLIDWORKS Software
and Analysis by using ANSYS
Keywords: Design, Interchangeable Part Concept, Jigs, Mass Production
I. Introduction
The Over the past century, manufacturing has made considerable progress. New machine tools, high-
performance cutting tools, and modern manufacturing processes enable today's industries to make parts faster
and better than ever before. Although work holding methods have also advanced considerably, the basic
principles of clamping and locating are still the same. Jigs and fixtures form an important category of equipment
that goes a long way in achieving productivity. A jig, however, guides the cutting tool. A fixture references the
cutting tool. The differentiation between these types of work holders is in their relation to the cutting tool. As
shown in Figure 1, jigs use drill bushings to support and guide the tool. Fixtures, Figure 1, use set blocks and
thickness, or feeler, gages to locate the tool relative to the work piece.
Figure1:A jig guides the cutting tool, in this case with a bushing.
In the shop, drill jigs are the most-widely used form of jig. Drill jigs are used for drilling, tapping,
reaming, chamfering, counter boring, countersinking, and similar operations.
Jigs are further identified by their basic construction. The two common forms of jigs are open and
closed. Open jigs carry out operations on only one, or sometimes two, sides of a work piece.
Closed jigs, on the other hand, operate on two or more sides. The most-common open jigs are template
jigs, plate jigs, table jigs, sandwich jigs, and angle plate jigs. Typical examples of closed jigs include box jigs,
channel jigs, and leaf jigs.
Design Considerations: The principal considerations when choosing among work holder varieties fall into
three general categories: tooling cost, tooling details, and tooling operation. Although each of these categories
is separated here, in practice they are interdependent. The following are some design differences and
considerations for permanent, general-purpose, and modular work holders.
2. Design and Analysis of Indexing Type of Drill Jig
DOI: 10.9790/1684-12214651 www.iosrjournals.org 47 | Page
Tooling Details
Tooling details are the overall construction characteristics and special features incorporated into the jig
or fixture. Permanent work holders are designed and built to last longer than temporary work holders. So,
permanent jigs and fixtures usually contain more-elaborate parts and features than temporary work holders.
Tooling Operation
The performance of any work holder is critical to the complete usefulness of the tool. If the work holder cannot
perform the functions desired in the manner intended, it is completely useless, regardless of the cost or the
extent of the detail.
Figure 2 A combination drill jig/milling fixture used for both types of operations on the same part.
Essential Features Of Jigs And Fixtures
The jigs and fixture must satisfy the following conditions :
Reduction Of Idle Time:
The design of jigs and fixtures should be such that the process of loading and unloading the component takes
the minimum possible time and enables on easy loading and clamping should be such that idle time is reduce to
minimum.
Provision For Coolant:
The jigs and fixtures must have adequate arrangement for the cutting edges of the tools so that the tool is cooled
and at the same time the swarf or chips produced are washed away, so that the operator does not have to waste
time in adjusting the coolant flows and cleaning of the swarf or chips.
Hardened Surfaces:
All locating and supporting surfaces such as faces of locating pins should be hardened materials as far as
conditions permit, so that they are not quickly worn out and their accuracy is retained for a longer time.
Safety:
The design of jigs and fixtures should be such that it should not constitute a danger to operator.
Fool Proof
Since the use of jigs and fixtures allows for the employment of unskilled workmen, the design of such
equipment should be such that it would not permit the work piece or the tool to be inserted in any position other
than the correct one.
Indexing Type Of Jig
These types of jigs are used to drill a series of holes in a circle, on the face of a work piece. The work
piece is indexed and the next place the hole is to be drilled, comes under the jig bush, with the component clamp
in one position of the jig, after each hole has been drilled there the single bush, etc. The work is indexed there 60
degree and the previously drilled hole located by the angular pin.
II. Design Procedure Of Indexing Type Of Drill Jig
Initially the component was deigned, modeled and edited to get the necessary details for designed of the jig.
Secondly the individual parts such as Base Plate, Locator, Clamping Devices Bushes Jig Plate, and
Indexing Mechanism has been developed. All these parts have been designed, Modeled, Drafting has been done
individually.
3. Design and Analysis of Indexing Type of Drill Jig
DOI: 10.9790/1684-12214651 www.iosrjournals.org 48 | Page
The whole Design Procedure was completed with the help of CAD software by which the software
helps for Designing, Drafting Assembly and Analysis which may be useful for customized applications and
manipulations.
Component Description: The component for which the jig is deigned is a Casted Component which is having
angular holes inclined at 25 deg equi-spaced.
Figure 3: 3D Model of the Component
Design Of Base Plate:
The Base Plate is one of the vital parts in the design of jigs. Base is generally taken as a support for the
other parts .In general base are in the form of vertical, inclined, and horizontal plates. The base plate in the
design is developed according to the dimensions of the work piece, so that during the machining and non-
machining the structure is not distorted.
Figure 4: 3D Model of Base Plate
Design Of Locator
A minimum of three locators are used to locate the work piece.
The type of locator used in this design is locator for circular surfaces in which the inner diameter is
taken as the locating surface of the component. The locating diameter for the component is 108(+/- 0.15) mm.
From this locating surface clamping and other mechanisms are developed.
Figure 4: 3D Model of Locator
4. Design and Analysis of Indexing Type of Drill Jig
DOI: 10.9790/1684-12214651 www.iosrjournals.org 49 | Page
Design Of Clamping Device
While performing a manufacturing operation it is necessary to provide some kind of CLAMPING
mechanisms to hold the work piece in the desired position and to resist the effects of gravity and operational
forces.
Clamp From the calculation it is found the clamping force is greater than the drilling force (machining
force) hence the jig design is safe, and the clamp chosen is also satisfied by its per formability.
Figure 4: 3D Model of Strap Clamp
5Design Of Bushes
Bushings are used to guide drills, reamers, and other cutting tools into proper position on the work piece.
In the design of indexing type of drill jig the type of bushes used are;
Liner Bushes
Renewable Bushes
Taper Bushes
Liner Bushes: These are taken from standards IS 666 according to the dimensions of the drilled hole the liner
bushes used here are
Figure 5: 3D Model of Linear Bush
RENEWABLE BUSH
In this design the renewable bush used is a lock and screw type in which the bushes can e replaced
easily .For the diameter of the drilled hole three renewable bushes are used which are taken from IS 666.
Figure 6: 3D Model of Renewable Bush
Indexing Mechanism
For indexing, the mechanism adopted is “Spring and Plunger arrangement” which is explained as
follows. When the handle is pulled down the spring disengages and the locator with bracket is rotated such the
5. Design and Analysis of Indexing Type of Drill Jig
DOI: 10.9790/1684-12214651 www.iosrjournals.org 50 | Page
next position of the hole is pointed by the taper bush and the pin sits in the exact position of the hole, in that way
the indexing is achieved.
This is one of the common methods of indexing which can be operated easily and here the operating type is also
minimum.
III. Indexing Drill Jig Assembly : Front View Of The Model
Figure7 : Top View of The Model
Here it is clearly observed that the drill axis coincides with the hole axis hence the design is satisfied
for hole positioning in which the hole are inclined at 25deg with base.
In the design of drill jig the most vital part is the locator pin, because it is very much important that how the
relationship is maintained hence for this a locator pin is used and in this design the locator pin is inclined
at 25deg from the base of the component.
Hence the concept of Fool Proof design is also satisfied, it means that any unskilled operator can easily operator
the jig since the component is arrested in the desired position and there is no other chance for any positional
errors.
Figure8 : Isometric View of the model
IV. Analysis Of Drill Jig Assembly
Figure9 : Meshed Model of the Jig Assembly
RENEWABLE BUSH
COMPONENT
JIGPLATE
LOCATOR
BASE PLATE
CLAMPS
6. Design and Analysis of Indexing Type of Drill Jig
DOI: 10.9790/1684-12214651 www.iosrjournals.org 51 | Page
Figure10: Deformation Plot of the Jig Assembly
V. Results
While designing for selecting the required parts of the Indexing Type Of Drill Jig the following
calculations are done and compared with allowable limits for individual parameters like rpm, thrust and
clamping force
PARAMETERS CALCULATED VALUES
TORQUE (M) kgf cm 329.4 Kgf.cm.
. THRUST (Px) Kgf. 321.27 Kgf.
. POWER DRILLING kW 2.238 KW
DRILL THRUST kgf 176.567 Kgf.
CLAMPING FORCE kgf
907.23 Kgf.
From the above table it can be clearly understood that the Clamping Force is more than drilling forces therefore
the design is safe for machining
Hence the design made satisfies the interchangeable part concept, and the design is fool proof and the design is
validated.
The results obtained after drilling like bore, surface finish etc.are found to be within the limit.
The Stresses in the Nodal Solution indicate that the component as well as the assembly is reliable and safe under
working conditions.
VI. Conclusions
1.The design of indexing type of drill jig involved about 287mm x 203 mm dimensions.
2. The material of the component is Aluminum Alloy (LM 20).
3. The Clamping force is more than the drilling force (calculated)
4. The assembly of the Indexing Type of Drill Jig is found satisfactory.
5. The results obtained after drilling like bore, surface finish etc.are found to be within the limit.
References:
Text Books:
[1]. P H Joshi, “Jigs and fixtures” Tata McGraw-Hill Education, 2010
[2]. Edward Hoffman “Technology & Engineering” Cengage Learning, 21-Aug-2003
[3]. Cyril Donaldson, V. C. Goold Machine-tools -Tata McGraw-Hill Education, 1976