For example, for 12 mm steel, plasma cutting costs are about half those of oxyfuel. The electric arc is formed between an electrode which is usually but not always made of sintered tungsten and the workpiece. Plasma arc cutting process pdf plasma arc cutting process pdf plasma arc cutting process pdf download. Scribd is the worlds largest social reading and publishing site. A free powerpoint ppt presentation displayed as a flash slide show on id. Like a cold knife through anything plasma arc cutting is a process where an open arc can be constricted by passing through a small nozzle, from the electrode to the workpiece. Nccer, welding level 1 trainee guide, 5th edition pearson. The avalanche continues till a steady state is obtained in which. Air carbon arc cutting and gouging pcmac powerpoint presentation. Its high accuracy, finishing, ability of machining any hard materials and to produce intricate shape increases its demand in market. Download welding plasma arc cutting air carbon and gouging base ppt for free.
Identifies correct amperage, gas pressures, and flow rates. In this type of winding, there are three types of gas. View and download powerpoint presentations on plasma arc machining ppt. 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.
Thermal joint preparation includes preparing a joint with the oxyfuel, plasma arc, or carbon arc. Machine tool electricaldischarge machining edm britannica. Plasma can be defined as a superheated, electrically ionized gas. These methods form a group of processes which removes excess material by various. The power supply used in the paw is a dc power source, and the suitable voltage for this type of welding is 70 volts otherwise above the typical welding parameters are voltage, current, and gas flow rate. Plasma arc welding and machine seminar reportpdfppt download. Ppt plasma arc welding powerpoint presentation free to download id. Machine torch plasma arc cutting system instruction manual. The cuts are made by a high temperature, high velocity gas jet generated by constricting an arc between a. Covers plasma arc cutting methods for piercing, slotting, squaring, and beveling metals. The figure depicts how one matter is obtained from the other and vice versa. Singh, balbir singh modern machining processes presents unconventional machining methods which are gradually commercial acceptance.
Plasma arc machining basic terms and working duration. Ppt plasma arc welding powerpoint presentation, free download. Potentials plasmas are excellent conductors simple view. Introduction plasmaarc machining pam employs a highvelocity jet of hightemperature gas to melt and displace material in its path. 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. Water jet machine widely used for cutting plastic, cloth, rubber, paper and leather, because. Plasma cutting is a process that cuts through electrically conductive materials by means of an accelerated jet of hot plasma. Plasma arc welding and machine seminar reportpdf ppt download introduction.
Introduction to water jet machining process advantages and disadvantages introduction to water jet machining. With the high temperature involved, can be used for any material those resistant to oxy. Plasma arc cutting system the basic plasma arc cutting system consists of a power supply, an arc starting circuit and a torch. Plasma arc cutting 1 plasma arc cutting meng 439 dr. Experience gained from user contact and welding training of crewmembers showed that. These system components provide the electrical energy, ionization capability and process control that is necessary to produce high quality, highly productive cuts on a variety of different materials. Depress plasma start switch on torch begin cutting procedure. Plasma arc machining pam employs a highvelocity jet of high temperature gas to melt and displace material in its path. Xpr300 represents hypertherms most significant advance in mechanized plasma cutting technology ever and its now available in multitorch configurations. Plasma arc cutting process pdf this is to certify pdftecnoinox ppf70e7 that the thesis entitled, pdftex def package documentation analysis of process. This is a mixture of free electrons, positively charged ions, and neutral atoms. Due to the above, the electric fields in plasmas tend to be very small quasineutrality.
Describe the plasma arc cutting process and its applications in the pipefitting trade identify the different components of plasma arc cutting equipment and ppe required for its use. The electrode and workpiece are immersed in a dielectric liquid, and a feed mechanism maintains a spark. Other machining operations shaping and planing a singlepoint tool moves linearly relative to the work part shaping a tool moves planing a workpart moves broaching performed by a multipletooth cutting tool by moving linearly relative to the work in the direction of the tool axis. Plasma arc welding and machining project reports projects. The material removal takes place by directing a high velocity jet of high temperature 11,00030,000. Presentations and quizzes explore welding quizzes and presentations from miller, covering topics like mig, tig and stick welding, basic electricity and filler metal selection.
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. Pdf experimental investigation of the plasma arc cutting. This channel is formed by faculty from bit to enhance the knowledge of students towards technical and fundamentals this video explains plasma arc machining. Plasma arc cutting process and equipment considerations. Ppt plasma arc cutting powerpoint presentation free to view id. The plasma arc welding is method wherever a coalescence is generated with the temperature which is developed from a special setup between a tungsten alloy electrode and the watercooled nozzle non transferred arc or between a tungsten alloy electrode and the job transferred arc. In thesis work literature has been studied in context to parametric optimization of plasma arc cutting machine. Arc welding by ryan saucier history of arc welding arc welding dates back to the late 1800 s first developed following the invention of ac electricity pioneered. Plasma cutting and its effect on mild steel presentation summary.
Find powerpoint presentations and slides using the power of, find free presentations research about plasma arc machining ppt. Plasma arc welding paw is an arc welding process similar to gas tungsten arc welding gtaw. Making the desired product by melting and pouring the metal in desired cavity made in a mould. Ppt plasma arc welding powerpoint presentation free to. Plasma arc machining pam uses a highjet and hightemperature jet of gas to melt substances in its pathway. 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. Plasmaarc machining pam employs a highvelocity jet of high temperature gas to melt and displace material in its path. Principle of operation plasma arc welding is a constricted arc process. Plasma arc machining process pdf 10 plasma arc machining. Plasma arc machining pam free download as powerpoint presentation. Plasma cutting and its effect on mild steel xpowerpoint. View electron beam machining process ppts online, safely and virus free. 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 plasma arc machining is a nontraditional thermal process.
Proper safety attire welding gloves jacket safety glasses colored shield thickness current travel speed 18mild steel 40 amps 110 ipm. Plasma arc machining or laser beam machining is that which is the last point. Introduction to water jet machining process advantages and. 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. On the one hand, we can assume that densities of positive and negative charges are equal however, we can assume that electric fields exist as needed for the physics at hand. The cutting is faster about 5 to 10 times than oxyfuel. Narrow plasma jet melts the workpiece material in its path. It mentions advantages of plasma arc welding cutting and disadvantages of plasma arc welding cutting. Nonconductive materials such as wood or plastic cannot be cut with plasma cutters with transferred arc. A concentrated plasma arc is produced and directed toward the weld area. All aspects of mechanical, electrochemical and thermal processes are comprehensively covered. Winner of the standing ovation award for best powerpoint templates from presentations magazine. The plasma arc process has always been seen as an alternative to the oxyfuel process. Our machines are capable to cut materials of up to 150mm6 inch thickness.
Plasma arc machiningbasic terms and working youtube. Plasma arc welding is an arc welding process wherein coalescence is produced by the heat obtained from a constricted arc setup between a tungstenalloy tungsten electrode and the watercooled constricting nozzle nontransferred arc or between a tungstenalloy tungsten electrode and the job transferred arc. Advantages and disadvantages of plasma arc welding,cutting. Plasma is defined as a gas that has been heated to a sufficiently high temperature to become partially ionized and therefore electrically conductive.
The purpose of the welding handbook for maritime welders is to provide guidance. As shown in the figure, there are four types of matter solid, liquid, gas and plasma. These parameter values can be ranges like the current is 500a, voltage is 30v to 250v, the speed of cutting is. With a power source, plasma torch, compressed air, electrical power, and a supply of tips and electrodes, plasma arc cutting machines can rapidly and precisely cut through, gouge, or pierce any electrically conductive metal without preheating and with a minimal heataffected zone. The method also eliminated machining of hard edges, caused by metallurgical changes wrought by laser or plasma arc cutting. The basic arrangement for a plasma arc cutting torch, similar to the plasma arc welding torch, is shown in figure 1071. Manual plasma arc cutting power source buyers guide. Plasma arc machining pam electric arc welding scribd. Download air carbon arc cutting and gouging pcmac ppt for free. Today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram.
The torch produces a highvelocity jet of hightemperature ionized gas called plasma that cuts by melting and. The adobe flash plugin is needed to view this content. Water jet machining wjm called hydrodynamic or equipment may be used for applications similar to the laser. 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. The free electrons, in turn, get accelerated and cause further ionization and heating of the gases. M p groover, fundamentals of modern manufacturing 4e welding processes 1. Plasma arc machining plasma physics electric arc scribd. Basics of plasma arc cutting vs oxyfuel cutting grainger.
M p groover, fundamentals of modern manufacturing 4e two categories of welding. Introduction plasma are initially employed to cut metals that are difficult to machine by conventional methods. Ppt plasma arc cutting powerpoint presentation free to. Typical materials cut with a plasma torch include steel, stainless steel, aluminum, brass and copper, although other conductive metals may be cut as well. Start here to learn about the different processes, how each work, and how to choose the process that is right for you. The plasma arc cutting process cuts metal by melting a section of metal with a constricted arc. Introduction the plasma arc machining process was introduced to the. 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. Called pam, this is a method of cutting metal with a plasmaarc, or tungsten inertgasarc, torch. 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. The purpose of the welding handbook for maritime welders is to provide guidance in modern welding and related processes and to provide the welder with a source of practical information on the right solution to specific onboard welding problems.
A highvelocity jet flow of hot ionized gas melts the metal and then removes the molten material to form a kerf. Is plasma mixture of free electrons,positively charged ions and neutral atoms. Automation is available with portable trolleys rail. View plasma cutting machine ppts online, safely and virus free. Plasma arc machining presented by rajkumar s w 1ms15mse10 mtechmse 25apr16 2. Disadvantages of plasma arc machining the cutters electrode and nozzle sometimes require frequent replacement which adds to the cost of operation. The term plasma, as employed in physics, means ionized particles. Ravindra reddy associate professor department of mechanical engineering chaitanya bharathi institute of technology definition. Machine tool machine tool electricaldischarge machining edm. Pac is a thermal material removal process that is primarily used for cutting thick sections of electrically conductive materials. India is one of the four centres set up by world economic forum for industry 4. Plasma arc machining process, diagram, advantages and. However, as with any piece of equipment you need to know how and why it does what it does and the necessary precautions to do the job safely. Following are the advantages of plasma arc cutting.
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 machining free download as powerpoint presentation. Introduction plasma arc 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 plasma arc, or tungsten inertgas arc, torch. Laser beam machining is a thermal machining process which uses laser beam to produce heat. You need to cut metal, stone, rubber, or other industrial material but arent sure where to start. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Plasma arc machining basic terms and working learn and grow. Introduction plasma arc machining is a material removal process. The plasma arc cutting process is illustrated in fig.
Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. The plasma is sufficiently hot to melt the metal being cut and moves sufficiently fast to blow molten metal away from the cut. Plasma cutting and its effect on mild steel background of plasma arc process in 1941 the u. The plasma arc cutting process severs metal by using a constricted arc to melt a localized area of a workpiece, removing the molten material with a highvelocity jet of ionized gas issuing from. View and download powerpoint presentations on electrochemical grinding ppt. It is the process of obtaining desired product from raw material classification metal casting. Oxyfuel cutting, plasma arc cutting, and carbon arc cutting. Plasma arc machining pam kcg college of technology. Following are the disadvantages of plasma arc cutting. It gives a balanced account of both theory and applications, contains illustrative exercises and an extensive uptodate bibliography. Unconventional machining processes plasma arc machining how plasma arc machining takes place high temperature machining. Find powerpoint presentations and slides using the power of, find free presentations research about electrochemical grinding ppt. 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.