Because of the high temp involved, the process can be used on almost all matl including those white are resistant to oxy fuel gas cutting. The plasma is obtained by forcing a gas through an electric arc generated between cathode hot tungsten and anode. Lesson 1 history of refrigeration 1 version 1 me, iit kharagpur. Indian institute of technology kharagpur 721 302, west bengal, india. Building of machines, structures, or process equipment by cutting, shaping and assembling components made from raw materials. The focus on this project is to obtain an optimum condition setting to obtain maximum mrr and minimum the surface roughness sr. But as material removal is slow, conventional tools would do a quicker easier job on external surfaces, so it i. The arc cut pro is designed not only for plate cutting, but also for running structural material such as channel, tubing, angle and beams. Plasma arc machiningbasic terms and working duration. Plasma arc machining machine tool technology britannica. Nontraditional manufacturing processes central libraryiit kgp. Pac was initially employed to cut metals that are difficult to machine by conventional methods.
Pam is a method of cutting metal with a plasma arc, or tungsten inertgas arc, torch. Introduction to nontraditional machining iit kanpur. Oct 15, 20 a typical value of temperature obtained in a plasma jet torch may be of the order of 50,000f against about 10,000f in ordinary electric welding arc. The objective of this work is to study the effects of plasma arc cutting process parameters on hazheat affected zone and bevel angle for low carbon steel 1010 material with thickness 4 mm, which.
Beam machining ebm and highenergy coherent photons in case of laser. The video tutorials are geared and designed to get you up and cutting on your arclight cnc plasma system the day you get it. In abrasive jet machining process mrr increases monotonically with the. Cnc plasma cutting is a process that is typically applied to large stock forms of material such as large plates or sheets of material. Todday, plasma retains the original advantages it brought to industry by providing an. The torch produces a high velocity jet of hightemperature ionized g. Machine tool machine tool electricaldischarge machining edm. Pandu ranga vundavilli indian institute of technology. The key difference from gtaw is that in paw, by positioning the electrode within the body of the torch, the plasma arc can be separated from the shielding gas envelope. Refrigerationandairconditioning iit kharagpur notes.
Me, iit kharagpur the horn or concentrator, which mechanically amplifies. Plasma arc welding is an advanced form of tig welding. Its high accuracy, finishing, ability of machining any hard materials and. Plasmaarc machining pam employs a highvelocity jet of high temperature gas to melt and displace material in its path. It uses compressed air or nitrogen to facilitate the cutting process. The topic for the thesis writing is the analysis of process parameters of plasma arc cutting using design of experiment techniques. Plasma arc machining is a nontraditional thermal process. Introduction and demonstration on submerged arc welding and plasma spray coating metal forming.
Plasma arc machining pam kcg college of technology. I presume you mean in what situation would one use spark eroding to form something. Apr 21, 2015 introduction the plasma arc machining process was introduced to the industries in 1964 as a method of bringing better control to the arc welding process in lower current ranges. Plasma arc machining pam plasma arc machining is a nontraditional thermal process. Pdf a combined topsisahp method based approach for non. The basic plasma arc cutting system consists of a power supply, an arc starting. Plasma is defined as a gas that has been heated to a sufficiently high. Beam machining ebm and high energy coherent photons in case of laser. This paper deals with the hot machining process, for turning operations, which is designed to give improved metal removal rates, particularly on difficulttomachine metals. A few are oxyacetylene flame, welding arc, plasma flame etc. Early plasma cutters were large, slow, and expensive. Its high accuracy, finishing, ability of machining any hard materials and to produce intricate shape increases its demand in market. Version 1 me, iit kharagpur lesson 2 history of refrigeration development of refrigerants and compressors 1 version 1 me, iit kharagpur the objectives of the present lesson are to introduce the student to the history of refrigeration in terms of. Pam is a method of cutting metal with a plasmaarc, or tungsten inertgasarc, torch.
Analysis of sample using sem and xrd, optical microscopy, micro machining, mechanical, tribological, metallurgical characterisation facility etc. Plasma arc welding and machine seminar reportpdfppt download. Welcome to the course on advanced machining processes. In this process heat for machining is produced by convection from the high temperature plasma as well as due to direct electron bombardment. These methods form a group of processes which removes excess material by various. The arc cut pro series plasma table controller includes two extremely powerful plate nesting and cutting programs to give you all the tools needed to maximize productivity and efficiency. Paul,department of mechanical engineering, iit kharagpur. Plasma cutting is often used in fabrication shops, automotive repair and restoration, industrial construction, and. Plasmaarc machining pam employs a highvelocity jet of hightemperature gas to melt and displace material in its path called pam, this is a method of cutting metal with a plasmaarc, or tungsten inertgasarc, torch. Edm involves the direction of highfrequency electrical spark discharges from a graphite or soft metal tool, which serves as an electrode, to disintegrate electrically conductive materials such as hardened steel or carbide. The selection of the most suitable of these processes. The term plasma, as employed in physics, means ionized particles. D student in the department of mechanical engineering at indian institute of technology kharagpur. Scribd is the worlds largest social reading and publishing site.
A person doesnt need to be a physicist or chemist to understand the plasma arc. Our machines are capable to cut materials of up to 150mm6 inch thickness. Xpr300 represents hypertherms most significant advance in mechanized plasma cutting technology ever and its now available in multitorch configurations. Plasma arc machining pam and plasma arc welding paw the plasma welding process was introduced to the welding industry in 1964 as a method of bringing better control to the a rc welding process in lower current ranges. Plasma arc welding paw is an arc welding process similar to gas tungsten arc welding gtaw. Look to the demo and training videos tab at the top right of the page to view content. The plasma arc cutting process is illustrated in fig. Hussain, nonlinear modeling of mechanical properties of plasma arc welded inconel 617 plates, materials testing. Introduction, equipment, nonthermal generation of plasma. The maximum cut depth is 34 and the unit will sever up to 1. Gait generation of dynamically balanced biped robots using soft computing. His research interests include abrasive machining process, thermal spray processes, and material. Me, iit kharagpur the horn or concentrator, which mechanically amplifies the vibration to the required amplitude of 15 50.
Plasma arc machining pam pdf plasmaarc machining pam employs a highvelocity jet of hightemperature gas to melt and displace material in its path. Nov 05, 2017 this channel is formed by faculty from bit to enhance the knowledge of students towards technical and fundamentals this video explains plasma arc machining pam in details with explanation of all. Blood plasma and antibiotics are manufactured by freezedrying process where water is made to sublime at low pressure and low temperature. The electrode and workpiece are immersed in a dielectric liquid, and a feed mechanism maintains a spark. Hot machining process for improved metal removal rates in. Effect of arccurrent and spray distance on elastic modulus. Lecture notes on modern manufacturing process dr pramod. I currently lead a group of students who are working on research problems as diverse as i finishability of oxide ceramic plasma sprayed coatings, ii development of diamond reinforced tribological thick coating and finishability of such coatings, iii high speed grinding of ceramics and carbon fibre. A high temperature plasma arc is used to provide intense localised heat, softening only the chip material, leaving the work piece relatively cool and metallurgical undamaged. Plasma cutting is applicable to a wide range of metal cutting situations, from flat plate materials through to 3 dimensional sections. Pdf me6004 unconventional machining processes ump books. My research interests are in the broad area of machining, grinding and cutting tool coating. Chapter 1 early plasma cutting the plasmaarc cutting process saw its first commercial application in the early 1960s.
Pdf experimental investigation of the plasma arc cutting. Introduction the plasma arc machining process was introduced to the industries in 1964 as a method of bringing better control to the arc welding process in lower current ranges. Introduction the plasma arc machining process was introduced to the. The basic arrangement for a plasma arc cutting torch, similar to the plasma arc welding torch, is shown in figure 1071. One of the most important non conventional machining methods is plasma arc machining. Plasma arc machining free download as powerpoint presentation. In this process heat for machining is produced by convection from the high temperature plasma as well as due to. With increase in competition in market and to attain high accuracy now a days the nonconventional machining are become lifeline of any industry. Plasma cutting is a process that cuts through electrically conductive materials by means of an accelerated jet of hot plasma. Check out our machine software demo video and click the link below to learn more. Plasma arc machining working principle best engineer youtube.
The plasma is sufficiently hot to melt the metal being cut and moves sufficiently fast to blow molten metal away from the cut. Plasma arc cutting process and equipment considerations. The focus on this project is to obtain an optimum condition setting to. Plasma arc cutting is machining process where material is cut by plasma arc. The electric arc is formed between an electrode which is usually but not always made of sintered tungsten and the workpiece. Chapter 1 early plasma cutting the plasma arc cutting process saw its first commercial application in the early 1960s. Pdf version 2 me, iit kharagpur karuppaiah sridhar. Machine tool electricaldischarge machining edm britannica. 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. Consequently, common applications for pac consisted of repeating cutting patterns in a massproduction mode.
Nov 05, 2017 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. Plasma arc machining pam employs a highvelocity jet of high temperature gas to melt and displace material in its path. Plasma is defined as a gas that has been heated to a sufficiently high temperature to become partially ionized and therefore electrically conductive. Tech civil engineering, iit kharagpur 2011 semester 1 ma1 mathematics i. Plasma arc machining pam pdf plasma arc machining pam employs a highvelocity jet of hightemperature gas to melt and displace material in its path. In this paper presented the work design optimization of plasma arc cutting machine. 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. In this part of the series the process fundamentals are described with emphasis being placed on the operating features and the advantages of the many process variants. It is the state of the matter present in between the electrodes in any arc. Plasma arc machining pam and plasma arc welding paw. The torch produces a highvelocity jet of hightemperature ionized gas plasma that cuts by melting and displacing material from the workpiece. Which kinds of components are made using plasma arc machining. Plasma is the state of the matter when part of the gas is ionized making it a conductor of electric current.
Plasma arc machining pam methods machining engineering. An invaluable resource that is continuously being added to and developed. Plasma arc welding is an arc welding process that melts and joins metals by heating them with a constricted plasma arc established between a tungsten electrode and the metals. Operations include hole piercing and cutting along a defined path. Download link is provided and students can download the anna university me6004 unconventional machining processes ump syllabus question bank lecture notes syllabus part a 2 marks with answers part b 16 marks question bank with answer, all the materials are listed below for the students to make use of it and score good maximum marks with our study materials.
Advanced manufacturing processes amps plasma beam machining. The plasma arc process has always been seen as an alternative to the oxyfuel process. Plasma arc machining pam the plasma welding process was introduced to the welding industry in 1964 as a method of bringing better control to the a rc welding process in lower current ranges. Plasma arc cutting process is the nonconventional thermal process which is applicable to perform various operations such as cutting, welding, coating etc. The plasma arc welding paw closely resembles the tungsteninert gas tig or gas tungsten arc gta welding process in that it also uses a nonconsumable tungsten. Advanced machining processes online course video lectures by iit. Tech degrees in mechanical engineering in 2006 and 2011 from kiit university, bhubaneswar, india. When a flowing gas is heated to a sufficiently high temperature of the order of 16,500c to become partially ionised, it is known as plasma. A highvelocity jet flow of hot ionized gas melts the metal and then removes the molten material to form a kerf.
Plasma arc welding and machine seminar reportpdfppt download introduction. Today we are going to discuss on plasma arc machining process. This channel is formed by faculty from bit to enhance the knowledge of students towards technical and fundamentals this video explains plasma arc machining pam in details with explanation of all. Plasma is a thermally highly heated up, electrically conductive gas, which consists of positive and negative ions, electrons as well as of excited and neutral. Electrical nonconducting material cant be cut by plasma arc cutting machine. In the case of tig, it is an open arc shielded by argon or helium where as plasma used a special torch where the nozzle is used to constrict the arc and shielding gas is separately supplied by the torch. Engineering, indian institute of technology kharagpur, india.
342 1421 1011 41 786 76 214 1324 655 1004 1479 446 1423 1551 1215 1560 1318 1242 859 705 1151 877 680 1308 712 492 1421 1426 1029 942 1244 1157 1141