Capacity speed our capacity allows us to create cnc machined parts with unrivaled speed. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Chapter 1 early plasma cutting the plasmaarc cutting process saw its first commercial application in the early 1960s. Consequently, common applications for pac consisted of repeating cutting patterns in a massproduction mode. Welcome to this session on electron beam welding and plasma arc welding processes, under the course advanced manufacturing processes. Non traditional machining process plasma arc machining. The focus on this project is to obtain an optimum condition setting to.
Janiyani department of mechanical engineering page 1. Typical applications for machining plastics include semiconductor processing components, heavy equipment wear parts, and food processing components. The term for advisable state of plasma arc is called stability of arc too. Jain department of mechanical engineering, indian institute of technology kanpur, kanpur208016, india. Welcome to the course on advanced machining processes. Manufacturing processes i nptel online videos, courses. Introduction to machine design design of machine elements 2151907 prepared by. This channel is formed by faculty from bit to enhance the knowledge of students towards technical and fundamentals plasma arc machining is used for variety of industrial application. You must be able to control how quickly these axes move, especially during machining. Feedrate is the rate at which the cutting tool will move during a machining operation. Featured audio all audio latest this just in grateful dead netlabels old time radio 78 rpms and cylinder recordings. Groover, fundamentals of modern manufacturing 2e figure 26. Non traditional machining process plasma arc machining pam part a.
This course also deals with the sample preparation. In our work, we are going to optimize the machining process parameters of plasma arc machining. It deals with the latest machining processes named as advanced machining processes. Smart material, adaptive structures and intelligent mechanical systems iitk. Today, plasma retains the original advantages it brought to industry by providing an advanced level of control and accuracy to produce high quality welds in miniature or precision applications and to provide long. Nptel syllabus advanced machining processes video course course outline this course on advanced machining processes is also known as unconventional machining processes, modern machining processes, and new technology. In order to meet these challenges, a number of newer material. In this process heat for machining is produced by convection from the high temperature plasma as well as due to. So this is selfshielded carbon dioxide electrode and you can see the video the. The plasma welding process was introduced to the welding industry in 1964 as a method of bringing better control to the arc welding process in lower current ranges.
Arc flash is concentrated enough to cause headaches, dizziness, and blindness for an 85 amp torch, shade 8 eye protection or better is required electricity plasma cutter cuts with 85 amps at volts dc, or 11,000 watts. Plasmaarc machining pam employs a highvelocity jet of high temperature gas to melt and displace material in its path. Parts, working principle, advantages, application and more. The inside of atomic hydrogen arc welding, part 2 1943 duration.
Cnc as it is now known, allows part machining programs to be edited and stored in the computer memory as well as permitting diagnostics and quality control functions during the actual machining. All cnc machining begins with a part program, which is a sequential instructions or coded commands that direct the specific machine functions. As you know, a machining center has three linear axes, x, y, and z. Plasma arc welding is a liquid state welding process in which, the metal to metal joint forms in molten state. It is the first course at the under graduate level on microstructural characterization of materials.
The most important consideration in machining is to limit the amount of heat buildup, as the very act of machining generates friction, and thus, heat. The stability of arc is keeping the plasma jet in desired form. Nptel provides elearning through online web and video courses various streams. This paper investigates the effects and parametric optimization of process parameters for plasma arc cutting pac of en31 steel using grey relation analysis. While making a part from raw material, one may require bulk removal of material, forming cavitiesholes and finally finishing as per the parts requirements. Advanced machining processes video course course outline there is a need for machine tools and processes which can accurately and easily machine the most difficultto machine materials and workpieces with intricate and accurate shapes. These methods form a group of processes which removes excess material by various. Plasma arc welding and machine seminar reportpdfppt download. Nptel syllabus advanced machining processes video course course outline this course on advanced machining processes is also known as. Today we are going to discuss on plasma arc machining process.
Non traditional unconventional machining process advance machining processes 27 lessons 4 h 34 m. Patni input parameters cutting speed, cutting current, standoff distance, cutting voltage, plasma gas pressure and gas flow rate output parameters surface roughness, material removal rate and kerf width material ss 310. Nptel provides elearning through online web and video courses various. Download the cnc machining design guide for design for manufacturability best practices on fillets, tolerances, hole depth, mating parts, and more. The appropriate orthogonal array has been selected regarding number of factors available in that industry and the experimentation was carried out. Materials science and technology teachers handbook pacific northwest national laboratory richland, washington published in 1994, cleared for release in 2008. Plasma arc machining pam employs a highvelocity jet of high temperature gas to melt and displace material in its path. Unfortunately, these materials are unique to each design in their fiber. Machining operations and part geometry each machining operation produces a characteristic part geometry due to two factors. Cnc machining is a subtractive manufacturing method that uses cutting tools to remove material from a block of raw material or a preexisting part. Plasma arc machining pam methods machining engineering. Optimization of process parameters in plasma arc cutting. Nptel mechanical engineering forming joint initiative of iits and iisc funded by mhrd page 3 of. Machine tool for drilling drill press upright drill bench drill radial drill gang drill 26 drills together nc drill.
Advanced machining processes and nanofabrication ppt. Today we will learn about plasma arc welding principle, types, working, equipments, application, advantages and disadvantages with its diagram. It is a programmable function for all machining centers. Sharma, department of mechanical engineering, iit roorkee. Mechanical machining ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes. The term plasma, as employed in physics, means ionized particles. C o n t e n t s page introduction 1 applications 2 lubrication 35 grade selection 67 bearing configuration 810 standard available forms shaft material choice 1112 surface finish and tolerances dimensioning 21. Fundamental of welding science and technology video. Plasma arc machining process pdf 10 plasma arc machining. Introduction to machine design darshan institute of. The guide will continuously be updated from engineering feedback, so if you are looking for a specific feature to be highlighted let us know. Machining guides composite machining guide composite machining for decades, the aircraft industry has utilized composite materials in multiple applications, including flight surfaces and some internal cabin parts.
This channel is formed by faculty from bit to enhance the knowledge of students towards technical and fundamentals this video explains plasma arc. On this channel you can get education and knowledge for general issues and topics. Early plasma cutters were large, slow, and expensive. Plasma arc machining or laser beam machining is that which is the last point. For this experiment we have chosen stainless steel 316l ss316 l. Plasma arc machining pam plasma arc machining is a nontraditional thermal process. This course will cover the basic principles and techniques of xray diffraction, optical, scanning electron and transmission electron microscopy along with demonstrations of the instrument details and imaging experiments through videos.