Advanced machining processes
Utilize chemical, electrical, and high-energy beams
Situations where traditional machining processes are
unsatisfactory or uneconomical:
– Workpiece material is too hard, strong, or tough.
– Workpiece is too flexible to resist cutting forces or too difficult
to clamp.
– Part shape is very complex with internal or external profiles
or small holes.
– Requirements for surface finish and tolerances are very high.
– Temperature rise or residual stresses are undesirable or
unacceptable.
So to eliminate this disadvantages non conventional machines can be used
Advanced machining processes
Utilize chemical, electrical, and high-energy beams
Situations where traditional machining processes are
unsatisfactory or uneconomical:
– Workpiece material is too hard, strong, or tough.
– Workpiece is too flexible to resist cutting forces or too difficult
to clamp.
– Part shape is very complex with internal or external profiles
or small holes.
– Requirements for surface finish and tolerances are very high.
– Temperature rise or residual stresses are undesirable or
unacceptable.
So to eliminate this disadvantages non conventional machines can be used
This is Part 2 Power point Presentation of Unconventional Machining Process. in this PPT consisting of
Abrasive Jet Machining
Water Jet Machining
Abrasive water jet machining
Ultrasonic machining process
Exactly i said about these PPT Fully covered in UNIT -2 Under the Anna university syllabus. in this presentation is most widely used for getting good knowledge about which above mentioned machining field, .....remaining units i will upload soon .... With Happiest moment i submit my materials to my students... Thank you ...
Wish you all the best for your successful carrier guys
Tool monitoring, First research step, AmirKabir University of Technology
www.linkedin.com/in/sajjad-ahmadpoor
https://twitter.com/zuzu0045
ssahmadpoor@aut.ac.ir
This is Part 2 Power point Presentation of Unconventional Machining Process. in this PPT consisting of
Abrasive Jet Machining
Water Jet Machining
Abrasive water jet machining
Ultrasonic machining process
Exactly i said about these PPT Fully covered in UNIT -2 Under the Anna university syllabus. in this presentation is most widely used for getting good knowledge about which above mentioned machining field, .....remaining units i will upload soon .... With Happiest moment i submit my materials to my students... Thank you ...
Wish you all the best for your successful carrier guys
Tool monitoring, First research step, AmirKabir University of Technology
www.linkedin.com/in/sajjad-ahmadpoor
https://twitter.com/zuzu0045
ssahmadpoor@aut.ac.ir
Dynamo meters are the electronic devices that are widely used to the purpose of force analysis in various field of operations. There is various types of dynamometers such as
Lathe tool dynamometer
Milling tool dynamometer
Drilling tool dynamometer
These may be used as reference standards for transferring the dimension of the unit of length from the primary standard to gauge blocks of lower accuracy and for the verification and graduation of measuring apparatus. These are high carbon steel hardened, ground and lapped rectangular blocks, having cross sectional area 0f 30 mm
10mm. Their opposite faces are flat, parallel and are accurately the stated distance apart. The opposite faces are of such a high degree of surface finish, that when the blocks are pressed together with a slight twist by hand, they will wring together. They will remain firmly attached to each other. They are supplied in sets of 112 pieces down to 32 pieces. Due to properties of slip gauges, they are built up by, wringing into combination which gives size, varying by steps of 0.01 mm and the overall accuracy is of the order of 0.00025mm. Slip gauges with three basic forms are commonly found, these are rectangular, square with center hole, and square without center hole.
Coordinate metrology is concerned with the measurement of the actual shape and dimensions of an object and comparing these with the desired shape and dimensions.
In this connection, coordinate metrology consists of the evaluation of the location, orientation, dimensions, and geometry of the part or object.
A Coordinate Measuring Machine (CMM) is an electromechanical system designed to perform coordinate metrology.
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
Force analysis of lathe tool dynamometersathish sak
In machining or metal cutting operation the device used for determination of cutting forces is known as a Tool Dynamometer or Force Dynamometer.
Hence, it is essential to study the metal cutting process for economical aspects of the manufacture of the components.
Electrical Engineer Job Duties: Evaluates electrical systems, products, components, and applications by designing and conducting research programs; applying knowledge of electricity and materials. Confirms system's and components' capabilities by designing testing methods; testing properties.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
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Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
The Benefits and Techniques of Trenchless Pipe Repair.pdf
Tool wear measurement
1. TOOL WEAR MEASUREMENT
Tool wear is the most undesirable
characteristics of machining process.
It affect the tool life,
which also has impact on dimensional
accuracy, surface quality etc.
Hence, tool wear measurement is
necessary.
•With effective monitoring system, warn tool can be
change in time to avoid production time and scrapped
components
2. • Measurement of tool wear is extremely important to
predict the useful life of tool inserts.
• This will be helpful to monitor and to study the
effects of the tool wear on quality of machined
work piece and economy of manufacturing process.
• Methods to measure tool wear:
I. Direct methods
II. Indirect methods
3. I. Direct methods
• Measurement takes over the tool wear
zone.
• Based on the change of the tool geometry
• It is impossible in the presence of coolant
fluids.
• Reliable but difficult to implement
4. II. Indirect methods
• Based on parameters measured during the cutting
operation that can be correlated to wear state
• Tool condition is not captured directly but
achieved from the measurable parameters
• Use the effects the tool edge wear and not the
tool wear themselves.
• Tool wear is estimated with the signals coming
from different types of sensors .
5. • Indirect sensor based tool wear
monitoring system works in three steps:
i) data or signal acquisition
ii) signal processing and analyzing and
iii) resulted tool condition
7. To estimate tool wear by indirect method the
following physical quantities can be measured:
cutting force
vibration
acoustic emission
motor current
cutting temperature
Surface roughness etc.
8. Cutting Force Measurement
• Variation in the cutting force can be correlated to
tool wear.
• Gradual increase in tool wear during the cutting
process causes the cutting forces to increase
• Therefore the cutting forces is generally
considered
one of the most significant indicators of tool wear
in the metal cutting process.
• Dynamometer is used for the measurement of
cutting forces.
9. • The basic principles of measuring cutting
force from its effects:
Monitoring elastic deflection of body caused
by forces
Monitoring elastic deformation i.e. strain
induced by force
Monitoring the pressure develops
10. 1 .strain gauge dynamometer
Two-channel strain gauge at tool holder was used to
measure deflections in both tangential and feed
direction.
Result shows that developed online monitoring system,
using the strain gauge signal, is an effective method
of detecting the progression of flank wear width
during machining .
.
11. Why do we need measure cutting
force??
We want to know in witch direction how much
force is being acted and it can minimized or not.
By minimizing cutting force we can increase the
efficiency of process
The resultant force mostly passes through the tool
,otherwise the tool will not able takes of the force
eventually fail.
If the orientation of the tool is not suitable to the
direction of the resultant force then the tool tend
to buckle up and bends results to tool breakage or
improper finishing in the work piece.
12. 2. Lath tool dynamometer
It is mounted on the tool post and clamped.
It shows X, Y,Z directions we usually get
reading mutual perpendicular three axis and
then read out is available on the three channel
display and the direction of resultant force will
be obtained.
16. Design Requirement for Tool Force
Dynamometer
• Sensitivity
• Rigidity
• Cross sensitivity
• Stability against temperature and humidity
• Time response
• Frequency response
• Consistency and durability