Plasma arc welding is a superior edition of the tungsten inert gas welding process. At lower speeds, the molten metal from the kerf sticks to the bottom of the plate. The xpr series plasmas represent hypertherms most significant advance in mechanized plasma cutting technology ever and its now available on all arc cut pro machines in single and. Numerical modeling of the metal cutting process in the. Analysis of process parameters of plasma arc cutting using design of experiment a thesis submitted in partial fulfillment for the requirement for the degree of master of technology in production engineering by vivek singh 207me209 under the guidance of dr. Recent improvements in plasma arc cutting equipment and ad. 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. 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. Experimental study of anode processes in plasma arc cutting. Plasmaarc machining pam employs a highvelocity jet of high temperature gas to melt and displace material in its path.
Experimental investigation of the plasma arc cutting process. With engineering advances in pac equipment, all metals that conduct electricity. Upper limits on feed are imposed by cutting forces and setup rigidity. Look to the demo and training videos tab at the top right of the page to view content. When performing plasma arc cutting near a battery, the. Plasma arc cutting article about plasma arc cutting by. Model curriculum of undergraduate degree courses in. Plasma arc cutting article about plasma arc cutting by the. About the course this programme will enable the delegate to successfully and safely operate air plasma cutting equipment. The basic arrangement for a plasma arc cutting torch, similar to the plasma arc welding torch, is shown in figure 1071. Plasma is defined as a gas that has been heated to a sufficiently high temperature to become partially ionized and therefore electrically conductive.
Plasma arc cutting is machining process where material is cut by plasma arc. Theory and practice is the first commercially available training material specifically for plasma cutting and gouging. Plasma arc cutting how is plasma arc cutting abbreviated. Welcome to the course on advanced machining processes. Plasma cutting is a process that cuts through electrically conductive materials by means of an accelerated jet of hot plasma. With engineering advances in pac equipment, all metals that conduct electricity, whether they are common or exotic metals, can be cut economically with one process.
Nptel provides elearning through online web and video courses various streams. Pac, plasma arc cutting is a thermal material riddance process that is chiefly used for cutting bulky sections of electrically conducive materials. Plasma arc cutting process and equipment considerations twi. This final report documents and presents the results of all tasks in nchrp project 1040, plasma arc cutting of bridge steels. International journal of advance research in engineering. Power source control unit, plasma arc cutting torch with torch cable, work piece lead and lead assembly, plasma, shielding and cooling gases and gas control components. Delegates on this oneday course will be equipped with the fundamental knowledge and skills to. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Nov 01, 2011 the famed moviecar builder explains how to use a plasma cutter for custom metal fabrication. What items are included in plasma arc cutting equipment. It covers the fundamentals of plasma physics at a level suitable for an upper level undergraduate or graduate student, and applies the unique properties of plasmas ionized gases to improve processes and performance over a wide. The xpr series plasmas represent hypertherms most significant advance in mechanized plasma cutting technology ever and its now available on all arc cut pro machines in single and dual plasma configurations. Laser beam machining lbm, plasma arc machining pam and electron beam. Introduction the plasma arc machining process was introduced to the industries in 1964 as a method of bringing. Plasma arc cutting process and equipment considerations. Department of mechanical and industrial engineering. The ultimate objective was to produce a users guide for plasma arc cutting, supported by data generated in. Analysis of process parameters of plasma arc cutting using design of experiment a thesis submitted in partial fulfillment for the requirement for the degree of master. Mhrd has successfully completed two phases of project under nptel, to.
When performing plasma arc cutting near a battery, the operator should remove the battery to prevent. Sep, 2016 on this channel you can get education and knowledge for general issues and topics. At higher cutting speeds, the plasma jet does not cut through metal plate. The shielding should be connected to the cutting mains supply so that good electrical contact is maintained between the conduit and the cutting power source enclosure maintenance of cutting equipment.
Difference between plasma arc cutting and plasma arc. Developed in partnership with welding and cutting instructors from leading institutions, this 10hour course comes. Apr 24, 2020 the plasma arc cutting process cuts metal by melting a section of metal with a constricted arc. In electron beam machining also the basic requirement is the electron beam. Plasma arc machining working principle best engineer youtube. The term plasma, as employed in physics, means ionized particles. Design of profile gas cutting machine dound pramod a1, patil ashish d 2, patil ganesh s. The plasma arc process has always been seen as an alternative to the oxyfuel process. The maximum cut depth is 34 and the unit will sever up to 1. 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. Upon completion of the course, participants should be able to. Advantages of plasma cutting plasma arc cutting is an excellent choice for most cutting applications but it is particularly well suited for applications where speed and. Plasma arc machining pam employs a highvelocity jet of high temperature gas to melt and displace material in its path.
Advanced machining processes video course course outline there is a need for machine tools and processes which can accurately and easily machine the most difficulttomachine materials and workpieces with intricate and accurate shapes. An invaluable resource that is continuously being added to and developed. Numerical modeling of the metal cutting process in the plasma. Abstract the gas profile cutting machine is one of the essential machine tool in the workshop, in this study. Plasma arc cutting, which was developed 20 years ago for the cutting of stainless steel and aluminum, is now being widely accepted in industry as a highspeed, quality performance tool for processing carbon steel up to 112 inches thick.
Shielding should be electrically continuous throughout its length. The plasma arc cutting process cuts metal by melting a section of metal with a constricted arc. The plasma arc welding and cutting process was invented by robert m. When it comes to plasma arc welding people get confused, there are quite a few things that differentiate the plasma arc cutting and welding now let us see the differences between plasma arc welding and plasma arc cutting. Contentcommon features of machining processes, geometry of single point tool and tool signature, concept of speed, feed and depth of cut applicable to various machining processes. Vatousianosb amanufacturing and materials department, cranfield university, mk43 0al, uk bdept. For successful application of welding to produced sound weld joints, it is utmost important to understand the science and technology behind the welding. It discusses safety procedures, troubleshooting, and professional tips, and includes examples from eddie pauls world famous custom shop. On this channel you can get education and knowledge for general issues and topics. Plasma arc machining pam plasma arc machining is a nontraditional thermal process. The degree of ionization may be between 1% and greater than 100% i. Difference between plasma arc cutting and plasma arc welding. Experimental investigation of the plasma arc cutting process k. Welcome to this session on electron beam welding and plasma arc welding processes, under the course advanced manufacturing processes.
A highvelocity jet flow of hot ionized gas melts the metal and then removes the molten material to form a kerf. 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. However, as with any piece of equipment you need to know how and why. It covers the fundamentals of plasma physics at a level suitable for an upper level undergraduate or graduate student, and applies the unique properties of plasmas ionized gases to. It has a freeburning arc, which is unsteady and have a propensity to drift in the low current range. Early plasma cutters were large, slow, and expensive. Nptel online certification courses since 20, through an online portal, 4, 8, or 12week online courses, typically on topics relevant to students in all years of higher education along with. Plasma engineering is the first textbook that addresses plasma engineering in the aerospace, nanotechnology, and bioengineering fields from a unified standpoint. The 12m long plates of structural steel st52 with a thickness range of 6.
Pass a written test on safety and operating procedures of the plasma arc cutter with 100 percent accuracy. The plasma arc cutting process is illustrated in fig. Modeling and optimization of plasma arc cutting process parameters for m. 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. The major factor for maximum thickness that a plasma arc cutting system can cut is the. 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.
All access and service doors and covers should be closed and properly fastened when the cutting equipment is in operation. Describe the use and advantages of plasma cutting process. If cylinders are to be removed from a plasma arc cutting unit before it is stored, be. Jul 14, 2016 about the course this programme will enable the delegate to successfully and safely operate air plasma cutting equipment. Nptel syllabus welding engineering video course course outline welding is one most the most commonly used fabrication techniques. In a cutting shop besides various other cutting operations strip cutting for trailer fabrication was requested. Modern machining methods are also named as nonconventional machining methods. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Plasma arc cutting is such a simple process you could almost take it out of the box and start using it. The ultimate objective was to produce a users guide for plasma arc cutting, supported by data generated in a comprehensive series of laboratory trials. Includes basic, advanced, and cnc cutting procedures as well as how to draft and design components for racing and customcar building.
A plasma arc creates a very clean, dross free cut with minimal heat input, usually requiring very little rework or cleanup. Manufacturing processes ii nptel online videos, courses. There is no cutting of metal with the help of metallic tool having sharp cutting edge. The programme will allow the delegate to appreciate the equipments potential on a wide range of materials and applications. In order to meet these challenges, a number of newer material. A high productive and cost saving cutting technology was required. It uses compressed air or nitrogen to facilitate the cutting process. Numerical modeling of the metal cutting process in the plasma arc cutting a dissertation submitted to the faculty of university of minnesota by hunkwan park in partial fulfillment of the requirements for the degree of doctor of philosophy dr. Since the plasma arc cutting process is capable of handheld or machine torch cutting, metals ranging from thin gauge aluminum to 1 12inch carbon or stainless steel can be plasma cut. Advantages of plasma cutting plasma arc cutting is an excellent choice for most cutting applications but it is particularly well suited for applications where speed and excellent cut quality are important. Jain, department of mechanical engineering, iit kanpur. Pdf experimental investigation of the plasma arc cutting. Plasma cutting safe use and operation health and safety in the workplace.
Pdf effect of process parameters on cut quality of. I study plasma engineering in iran and i have to say its a quiet fascinating major,however its a new one and it has to be known to the world. Competencies given a properly adjusted plasma arc cutter, accessories, instruction and demonstration of use, each student will be able to. The regression analysis was used in 9 for the development of empirical models able to describe the effect of the process parameters on the cut quality in plasma arc cutting of a 15 mm thick mild steel sheets. Plasma arc cutting process aristidis tsiolikas1, john kechagias2, konstantinos salonitis3, and nikos mastorakis4 p fig. K p maity professor, department of mechanical engineering. Plasma arc welding paw is an arc welding process similar to gas tungsten arc welding. The regression analysis was used in 9 for the development of empirical models able to describe the effect of the process parameters on the cut quality in plasma. Effect of process parameters on cut quality of stainless steel of plasma arc cutting using hybrid approach. 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.
Typical materials cut with a plasma torch include steel, stainless steel, aluminum, brass and copper, although other conductive metals may be cut as well. Plasma cutting is often used in fabrication shops, automotive repair and restoration, industrial construction, and. 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. The famed moviecar builder explains how to use a plasma cutter for custom metal fabrication. The video tutorials are geared and designed to get you up and cutting on your arclight cnc plasma system the day you get it. These methods form a group of processes which removes excess material by various techniques involving mechanical, thermal, electrical chemical energy or combination of these energies.
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