Coining process by satyam diwedi
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Coining is a cold working process that uses high pressure to plastically deform a workpiece between a punch and die to conform to their shapes. The metal flows under compressive forces to take on the impressions of the completely closed dies. Coining provides a finer, more detailed surface finish than other metal forming processes and work hardens the surface. It is commonly used for minting coins and medallions, making jewelry, badges, buttons, springs, and complex electronic and precision parts that require close tolerances and smooth polished surfaces.
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Coining process by satyam diwedi
Coining is a cold working process that uses high pressure to plastically deform a workpiece between a punch and die to conform to their shapes. The metal flows under compressive forces to take on the impressions of the completely closed dies. Coining provides a finer, more detailed surface finish than other metal forming processes and work hardens the surface. It is commonly used for minting coins and medallions, making jewelry, badges, buttons, springs, and complex electronic and precision parts that require close tolerances and smooth polished surfaces.
Flashless Forging
Flashless forging is a closed die forging process where metal is deformed in a die cavity with little to no excess flash. It is conducted at an elevated temperature between cold and hot forging. The preheated workpiece is compressed in the die until deformation occurs, producing a near-net or net-shaped part. Flashless forging requires tight process control of work volume and die cavity size to ensure proper filling. It is well-suited for producing simple, symmetrical parts and precision forgings from materials like aluminum.
Abrasive jet machining
Introduction
Machining system figure
Abrasive jet machining
Material removal
Process parameters – contd.
Application
Advantage
Disadvantage/Limitation
Metal spinning
Metal spinning is a sheet metal forming process that uses rollers to form axisymmetric parts over a rotating mandrel. There are three main types: conventional spinning, shear spinning, and tube spinning. Spinning can be done hot or cold and involves placing a metal blank against a mandrel and using tools to deform the material into shape as it rotates. Applications include automotive parts, containers, and more. Key advantages are low tooling costs, design flexibility, and little material waste.
Lecture3
The AJM process involves removing material from a workpiece using abrasive particles carried by a high-velocity gas stream. The abrasive particles impact the workpiece surface at high velocities, causing brittle fractures and removing small fragments of material. AJM can machine hard and brittle materials and reach difficult internal areas due to the flexible hose used to direct the abrasive stream. It generates less heat than conventional machining and does not require direct tool-workpiece contact. Common applications include cutting glass and ceramics, deburring metal parts, and cleaning or dressing grinding wheels.
PPT1
This document discusses non-conventional machining processes. It introduces abrasive jet machining and ultrasonic machining. Abrasive jet machining uses abrasives propelled by high-velocity gas to erode material from hard or heat-sensitive workpieces. Ultrasonic machining involves a vibrating tool that oscillates at ultrasonic frequencies to remove material from the workpiece with help from an abrasive slurry. Both processes allow machining hard materials with less heat and damage compared to conventional processes. They are often used for intricate shapes or specific edge shapes due to their flexibility and ability to machine difficult materials.
Net shape forging process
Net shape forging process means producing a component with exact shape and dimension in one blow with no flash and gutter. i.e no need for post forging operations and increases the production rate.
Metal Forming Process
The document discusses manufacturing processes and forging. It begins with defining manufacturing process as transforming raw materials into different forms. It then classifies manufacturing processes into moulding, forming, machining, assembly and finishing processes. It also discusses forging processes like hot forging, cold forging, smith forging, drop forging, press forging and roll forging. It explains how residual stresses can be removed after forging through processes like heat treatment. It concludes with mentioning the calculation of forging force and pressure in sliding and sticking zones of forging.
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Coining process by satyam diwedi
Coining is a cold working process that uses high pressure to plastically deform a workpiece between a punch and die to conform to their shapes. The metal flows under compressive forces to take on the impressions of the completely closed dies. Coining provides a finer, more detailed surface finish than other metal forming processes and work hardens the surface. It is commonly used for minting coins and medallions, making jewelry, badges, buttons, springs, and complex electronic and precision parts that require close tolerances and smooth polished surfaces.
Flashless Forging
Flashless forging is a closed die forging process where metal is deformed in a die cavity with little to no excess flash. It is conducted at an elevated temperature between cold and hot forging. The preheated workpiece is compressed in the die until deformation occurs, producing a near-net or net-shaped part. Flashless forging requires tight process control of work volume and die cavity size to ensure proper filling. It is well-suited for producing simple, symmetrical parts and precision forgings from materials like aluminum.
Abrasive jet machining
Introduction
Machining system figure
Abrasive jet machining
Material removal
Process parameters – contd.
Application
Advantage
Disadvantage/Limitation
Metal spinning
Metal spinning is a sheet metal forming process that uses rollers to form axisymmetric parts over a rotating mandrel. There are three main types: conventional spinning, shear spinning, and tube spinning. Spinning can be done hot or cold and involves placing a metal blank against a mandrel and using tools to deform the material into shape as it rotates. Applications include automotive parts, containers, and more. Key advantages are low tooling costs, design flexibility, and little material waste.
Lecture3
The AJM process involves removing material from a workpiece using abrasive particles carried by a high-velocity gas stream. The abrasive particles impact the workpiece surface at high velocities, causing brittle fractures and removing small fragments of material. AJM can machine hard and brittle materials and reach difficult internal areas due to the flexible hose used to direct the abrasive stream. It generates less heat than conventional machining and does not require direct tool-workpiece contact. Common applications include cutting glass and ceramics, deburring metal parts, and cleaning or dressing grinding wheels.
PPT1
This document discusses non-conventional machining processes. It introduces abrasive jet machining and ultrasonic machining. Abrasive jet machining uses abrasives propelled by high-velocity gas to erode material from hard or heat-sensitive workpieces. Ultrasonic machining involves a vibrating tool that oscillates at ultrasonic frequencies to remove material from the workpiece with help from an abrasive slurry. Both processes allow machining hard materials with less heat and damage compared to conventional processes. They are often used for intricate shapes or specific edge shapes due to their flexibility and ability to machine difficult materials.
Net shape forging process
Net shape forging process means producing a component with exact shape and dimension in one blow with no flash and gutter. i.e no need for post forging operations and increases the production rate.
Metal Forming Process
The document discusses manufacturing processes and forging. It begins with defining manufacturing process as transforming raw materials into different forms. It then classifies manufacturing processes into moulding, forming, machining, assembly and finishing processes. It also discusses forging processes like hot forging, cold forging, smith forging, drop forging, press forging and roll forging. It explains how residual stresses can be removed after forging through processes like heat treatment. It concludes with mentioning the calculation of forging force and pressure in sliding and sticking zones of forging.
Ravi parihar
this presentation is about various types of finishing process such as lapping,honing,super finishing ,polishing which performed after the work primary operations are completed.and these various methods are known as secondary operations.
Forging Process. [Workshop Practices]
Forging is an ancient metalworking process where a metal is compressed under force into a desired shape. It can be done using a hammer and anvil and produces parts with good strength and toughness. There are different types of forging processes, including open-die forging using flat dies, impression-die forging where the workpiece takes the shape of shaped die cavities, and coining where parts are precisely forged without lubricants between dies. Forged parts often require additional heat treating for optimal properties.
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Unit 4 discusses several non-traditional machining processes including abrasive jet machining. Abrasive jet machining involves using a high-velocity jet of abrasive particles carried by a carrier gas to remove material from a workpiece. Key aspects of the process are that abrasive particles around 50 micrometers are accelerated to 200 meters per second by compressed air or gas and directed at the workpiece by a nozzle. Process parameters that can be controlled include the abrasive type and size, carrier gas properties, abrasive jet velocity and flow rate, standoff distance, and impingement angle. Abrasive jet machining is suitable for drilling intricate shapes in hard and brittle materials.
Drawing and Extrusion
The document discusses wire drawing and extrusion processes. Wire drawing is a metalworking process that reduces the cross-section of a wire by pulling it through a die. Extrusion is a process that forms materials by pushing them through a die opening to produce a desired cross-sectional shape. The document covers the assumptions, calculations, and parameters involved in wire drawing and extrusion like reduction in area, die angle, friction, and temperature. It also discusses different types of extrusion like direct, indirect, hydrostatic, and impact extrusion.
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This document discusses various bulk deformation processes including forging and extrusion. It describes different forging techniques like open-die, closed-die, and impression-die forging. Extrusion involves forcing a heated billet through a die to produce a part. Key factors that affect forging and extrusion are discussed, such as die design, temperature, speed, and the extrusion ratio. Common defects and parts produced via these processes are also mentioned.
Abrasive jet machining
The document discusses abrasive jet machining, which uses a high-velocity stream of abrasive particles carried by compressed air or gas to erode material through micro-cutting and brittle fracture. It describes the process, components, process parameters like abrasives, carrier gas, and nozzle used. Applications include cutting brittle materials like glass, ceramics, and silicon. Key advantages are cool cutting of heat-sensitive materials and high surface finish quality.
Metal Forging
This document discusses various metal forging processes. It describes how metal forgings can range in size from small parts to parts weighing 700,000 lbs. It lists examples of common forged parts, such as aircraft, automotive, and tool components. The document then discusses specific forging techniques like heading, piercing, sizing, ball forging, ring forging, riveting, coining, and trimming. It notes factors considered in forging analysis like true strain, required force, flow stress, and forging shape factor.
Abrasive jet machining
The document discusses abrasive jet machining (AJM), which is a machining process where material is removed by a high-velocity stream of abrasive particles carried in a gas. It describes the process, components, parameters, capabilities, applications, advantages, and disadvantages of AJM. Key aspects covered include that AJM uses abrasive particles accelerated in a gas stream to cause micro-fracturing and erosion of the workpiece surface, and that it can machine hard and brittle materials with a cool cutting action and high surface finish.
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This document provides an overview of abrasive water jet machining (AWJM). It describes the process as using high-pressure water and abrasive particles to erode material for machining. The mechanism involves concentrating energy from the water jet to locally exceed the material's strength. Key process parameters include water pressure up to 4000 bar, abrasive materials like garnet, and standoff distances of 1-2 mm. The document lists applications like cutting various materials and advantages like flexibility and lack of heat/waste. Disadvantages include limited materials that can be cut economically and thickness restrictions to maintain accuracy.
Abrasive Jet Machining (AJM)
Abrasive jet machining (AJM) uses a high-pressure stream of abrasive particles carried by gas or air to remove material from a workpiece. The abrasive particles are forced through a small nozzle at high velocity to impact the work surface. This allows for drilling intricate holes and cutting hard, brittle materials like ceramics more precisely than sand blasting. The process parameters like material removal rate, surface finish, and nozzle wear depend on factors such as abrasive size and flow rate, gas pressure and velocity, and nozzle size and position. AJM is well-suited for deburring and precision machining of small parts made of difficult materials like ceramics, glass, and superalloys
Super finishing method
The document discusses super finishing processes which are used to remove defects from grinding operations and achieve a high surface quality. It describes three main super finishing processes: honing, lapping, and super finishing. Honing is used to finish bores and involves rotating abrasive stones to cut metal. Lapping uses abrasives and less pressure/heat to produce highly accurate flat surfaces. Super finishing is a type of honing that uses less pressure, higher speeds, and more lubricant to produce smooth external surfaces with minimal heat. The goal of these processes is to improve the dimensional accuracy and surface finish of parts.
Abrasive jet machining
The mixture of abrasive particles with high pressurised air impinges through the nozzle towards the brittle material.Abrasive jet machining is done by use of abrasives(AL2O3,SIC,SYNTHETIC DIAMOND,ETC.,) particles. The main components are nozzle,mixing chamber,dehumidifier,regulator and pressure gauge.
Honing, Lapping & Electroplating
Honing is an abrasive machining process that produces a precision surface on a metal work piece by scrubbing an abrasive stone against it along a controlled path.
Honing is primarily used to improve the geometric form of a surface, but may also improve the surface texture.
Rebar processing equipment
Growth in industrial technology is increasing demand for new equipment like rebar processing machines. The document discusses various types of equipment used for cutting, bending, and tying rebar, including electric cutters that can cut rebar up to 16mm, heavy duty cutters that can cut rebar up to 42mm, wire rope cutters that can cut steel rope from 1.5mm to 20mm, and automatic bending machines that can bend rebar up to 32mm. It also discusses manual and automatic rebar tying machines. The equipment allows for high production volumes in minimal time with minimal waste and flexibility.
Forging process
Sizing is a metalworking process performed below melting point to improve dimensional accuracy and surface finish of a workpiece. It involves applying pressure to minimize thickness and densify the metal's surface. Sizing is usually done on semi-finished or precision parts using an open die and produces parts with better dimensions and stronger surfaces.
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For over 85 years, Roller Die + Forming has been providing custom roll formed, stamped, powder coated and assembled metal parts, using lean manufacturing processes.
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This document summarizes the metal rolling process. It describes how rolling is used to plastically deform metal by passing it between rolls, providing close control of the final product dimensions. It defines various semi-finished products produced from rolling like billets, blooms, slabs, plates, sheets, and strips based on their cross-sectional area and thickness. It also describes hot rolling and cold rolling processes, their applications and equipment used.
Flashless forging
Flashless forging is a type of precision forging where the work material is completely surrounded by the die cavity during compression, allowing no flash to form. It involves designing dies without flash areas to minimize material waste. Key parameters include billet volume, preform weight/shape, and tool/workpiece temperatures. Forces required are calculated based on flow stress and projected area. Flashless forging provides advantages like lower material usage, better dimensional accuracy, and surface finish compared to conventional forging, though it requires more complex dies and tooling. Common applications include gears, connecting rods, pistons, and aerospace/defense components.
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In abrasive jet machining (AJM), compressed air carries abrasive particles like aluminum oxide or silicon carbide through a nozzle to machine hard, brittle materials. The high-velocity abrasive particles remove material by micro-cutting and brittle fracture. AJM can drill intricate shapes, machine fragile materials, and is used for drilling, cutting, deburring, cleaning, and etching. Material removal rate is low, abrasives may embed, and environmental impact is high. AJM is suitable for hard, brittle materials like glass, ceramics, and mica.
Coining process
Coining is a cold working process that uses high pressure to plastically deform a workpiece between two closed dies to conform to their shapes. It provides a finer, more detailed surface finish than other processes like stamping. Coining does not require cutting or expensive machinery. It work hardens the surface of the material, making the finished parts more impact and abrasion resistant and eliminating the need for further finishing steps. Industrial applications of coining include minting coins and medals, making jewelry, precision springs, electronic parts, and other complex parts requiring polished surfaces.
Unit iv SHEET METAL PROCESSES
This document summarizes various sheet metal processes. It discusses sheet metal characteristics and typical forming operations like shearing, bending, drawing, and stretching. It also covers special forming processes such as hydroforming, rubber pad forming, spinning, explosive forming and super plastic forming. The document provides details on sheet metal tools, presses, cutting and forming operations, factors affecting formability and various test methods used to evaluate formability.
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Ravi parihar
this presentation is about various types of finishing process such as lapping,honing,super finishing ,polishing which performed after the work primary operations are completed.and these various methods are known as secondary operations.
Forging Process. [Workshop Practices]
Forging is an ancient metalworking process where a metal is compressed under force into a desired shape. It can be done using a hammer and anvil and produces parts with good strength and toughness. There are different types of forging processes, including open-die forging using flat dies, impression-die forging where the workpiece takes the shape of shaped die cavities, and coining where parts are precisely forged without lubricants between dies. Forged parts often require additional heat treating for optimal properties.
Ajm upload
Unit 4 discusses several non-traditional machining processes including abrasive jet machining. Abrasive jet machining involves using a high-velocity jet of abrasive particles carried by a carrier gas to remove material from a workpiece. Key aspects of the process are that abrasive particles around 50 micrometers are accelerated to 200 meters per second by compressed air or gas and directed at the workpiece by a nozzle. Process parameters that can be controlled include the abrasive type and size, carrier gas properties, abrasive jet velocity and flow rate, standoff distance, and impingement angle. Abrasive jet machining is suitable for drilling intricate shapes in hard and brittle materials.
Drawing and Extrusion
The document discusses wire drawing and extrusion processes. Wire drawing is a metalworking process that reduces the cross-section of a wire by pulling it through a die. Extrusion is a process that forms materials by pushing them through a die opening to produce a desired cross-sectional shape. The document covers the assumptions, calculations, and parameters involved in wire drawing and extrusion like reduction in area, die angle, friction, and temperature. It also discusses different types of extrusion like direct, indirect, hydrostatic, and impact extrusion.
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This document discusses various bulk deformation processes including forging and extrusion. It describes different forging techniques like open-die, closed-die, and impression-die forging. Extrusion involves forcing a heated billet through a die to produce a part. Key factors that affect forging and extrusion are discussed, such as die design, temperature, speed, and the extrusion ratio. Common defects and parts produced via these processes are also mentioned.
Abrasive jet machining
The document discusses abrasive jet machining, which uses a high-velocity stream of abrasive particles carried by compressed air or gas to erode material through micro-cutting and brittle fracture. It describes the process, components, process parameters like abrasives, carrier gas, and nozzle used. Applications include cutting brittle materials like glass, ceramics, and silicon. Key advantages are cool cutting of heat-sensitive materials and high surface finish quality.
Metal Forging
This document discusses various metal forging processes. It describes how metal forgings can range in size from small parts to parts weighing 700,000 lbs. It lists examples of common forged parts, such as aircraft, automotive, and tool components. The document then discusses specific forging techniques like heading, piercing, sizing, ball forging, ring forging, riveting, coining, and trimming. It notes factors considered in forging analysis like true strain, required force, flow stress, and forging shape factor.
Abrasive jet machining
The document discusses abrasive jet machining (AJM), which is a machining process where material is removed by a high-velocity stream of abrasive particles carried in a gas. It describes the process, components, parameters, capabilities, applications, advantages, and disadvantages of AJM. Key aspects covered include that AJM uses abrasive particles accelerated in a gas stream to cause micro-fracturing and erosion of the workpiece surface, and that it can machine hard and brittle materials with a cool cutting action and high surface finish.
Abrasive water jet machining juny
This document provides an overview of abrasive water jet machining (AWJM). It describes the process as using high-pressure water and abrasive particles to erode material for machining. The mechanism involves concentrating energy from the water jet to locally exceed the material's strength. Key process parameters include water pressure up to 4000 bar, abrasive materials like garnet, and standoff distances of 1-2 mm. The document lists applications like cutting various materials and advantages like flexibility and lack of heat/waste. Disadvantages include limited materials that can be cut economically and thickness restrictions to maintain accuracy.
Abrasive Jet Machining (AJM)
Abrasive jet machining (AJM) uses a high-pressure stream of abrasive particles carried by gas or air to remove material from a workpiece. The abrasive particles are forced through a small nozzle at high velocity to impact the work surface. This allows for drilling intricate holes and cutting hard, brittle materials like ceramics more precisely than sand blasting. The process parameters like material removal rate, surface finish, and nozzle wear depend on factors such as abrasive size and flow rate, gas pressure and velocity, and nozzle size and position. AJM is well-suited for deburring and precision machining of small parts made of difficult materials like ceramics, glass, and superalloys
Super finishing method
The document discusses super finishing processes which are used to remove defects from grinding operations and achieve a high surface quality. It describes three main super finishing processes: honing, lapping, and super finishing. Honing is used to finish bores and involves rotating abrasive stones to cut metal. Lapping uses abrasives and less pressure/heat to produce highly accurate flat surfaces. Super finishing is a type of honing that uses less pressure, higher speeds, and more lubricant to produce smooth external surfaces with minimal heat. The goal of these processes is to improve the dimensional accuracy and surface finish of parts.
Abrasive jet machining
The mixture of abrasive particles with high pressurised air impinges through the nozzle towards the brittle material.Abrasive jet machining is done by use of abrasives(AL2O3,SIC,SYNTHETIC DIAMOND,ETC.,) particles. The main components are nozzle,mixing chamber,dehumidifier,regulator and pressure gauge.
Honing, Lapping & Electroplating
Honing is an abrasive machining process that produces a precision surface on a metal work piece by scrubbing an abrasive stone against it along a controlled path.
Honing is primarily used to improve the geometric form of a surface, but may also improve the surface texture.
Rebar processing equipment
Growth in industrial technology is increasing demand for new equipment like rebar processing machines. The document discusses various types of equipment used for cutting, bending, and tying rebar, including electric cutters that can cut rebar up to 16mm, heavy duty cutters that can cut rebar up to 42mm, wire rope cutters that can cut steel rope from 1.5mm to 20mm, and automatic bending machines that can bend rebar up to 32mm. It also discusses manual and automatic rebar tying machines. The equipment allows for high production volumes in minimal time with minimal waste and flexibility.
Forging process
Sizing is a metalworking process performed below melting point to improve dimensional accuracy and surface finish of a workpiece. It involves applying pressure to minimize thickness and densify the metal's surface. Sizing is usually done on semi-finished or precision parts using an open die and produces parts with better dimensions and stronger surfaces.
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This document summarizes the metal rolling process. It describes how rolling is used to plastically deform metal by passing it between rolls, providing close control of the final product dimensions. It defines various semi-finished products produced from rolling like billets, blooms, slabs, plates, sheets, and strips based on their cross-sectional area and thickness. It also describes hot rolling and cold rolling processes, their applications and equipment used.
Flashless forging
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Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
Slides from talk presenting:
Aleš Zamuda: Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapter and Networking.
Presentation at IcETRAN 2024 session:
"Inter-Society Networking Panel GRSS/MTT-S/CIS
Panel Session: Promoting Connection and Cooperation"
IEEE Slovenia GRSS
IEEE Serbia and Montenegro MTT-S
IEEE Slovenia CIS
11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, SerbiaA SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMS
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
DfMAy 2024 - key insights and contributions
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressions
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
6th International Conference on Machine Learning & Applications (CMLA 2024)
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Harnessing WebAssembly for Real-time Stateless Streaming Pipelines
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Advanced control scheme of doubly fed induction generator for wind turbine us...
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Recycled Concrete Aggregate in Construction Part III
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Literature Review Basics and Understanding Reference Management.pptx
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
Understanding Inductive Bias in Machine Learning
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
RAT: Retrieval Augmented Thoughts Elicit Context-Aware Reasoning in Long-Hori...
RAT: Retrieval Augmented Thoughts Elicit Context-Aware Reasoning in Long-Horizon Generation
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
International Conference on NLP, Artificial Intelligence, Machine Learning an...
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
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A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMS
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Coining process by satyam diwedi
- 2. Concept Introduction Technique of coining Advantage of Coining Industrial Application
- 3. Introduction Coining is a cold working process that uses a great deal of force to plastically deform a work piece, so it conforms to a die. The coining process consists of die and punch. By using the punch and die, the impression and image are created on metal. The pressure involved in coining process is about 1600Mpa. The metal flows plastically and squeezed to the shape between the punch and die . The metal is caused to flow in the direction of perpendicular force . The type of impression is formed by compressive forces. The type of impression obtained on both side will be different. Coining can be done using a gear driven press, a mechanical press, or more commonly a hydraulically actuated press. Coining typically requires higher tonnage presses than stamping, because work piece is plastically deformed and nor actually cut. The coining process is preferred when there is a high tonnage.
- 4. Techniques of coining Completely closed dies are used for this process. High pressure is applied on the closed die containing the metal work piece. As the result of the high deformative stress, the metal conforms to the shape of the die. Lubricants are not used in coining as they are incompressible .
- 5. Advantages of coining Provide finer and detailed surface finish. Provide accurate bends in a consistent manner. Does not require expensive machinery. The work hardened surface can resist impact abrasion. Eliminate the need for complex finishing process. Plastic flow reduces the surface grain size and work hardens the surface.
- 6. Industrial Applications Minting of coins and medallions Making of jewelry Making badges, buttons, precision-energy springs Making complex electronic parts Making precision parts that require finer polished surface finishes. Note:- In coining pressure is applied on the surface of forging in order to obtain closer tolerances, smoother surfaces and eliminate draft.
- 7. END