View electron beam machining process ppts online, safely and virus free. Plasmaarc machining pam employs a highvelocity jet of high temperature gas to melt and displace material in its path. 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. Proper safety attire welding gloves jacket safety glasses colored shield thickness current travel speed 18mild steel 40 amps 110 ipm. Displaying powerpoint presentation on welding plasma arc cutting air carbon and gouging base available to view or download. Plasma arc machining basic terms and working learn and grow. 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. Plasma arc machiningbasic terms and working youtube. Ppt plasma arc cutting powerpoint presentation free to. 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. The arc cut pro is designed not only for plate cutting, but also for running structural material such as channel, tubing, angle and beams.
Is plasma mixture of free electrons,positively charged ions and neutral atoms. Identifies correct amperage, gas pressures, and flow rates. Singh, balbir singh modern machining processes presents unconventional machining methods which are gradually commercial acceptance. 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. 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. A free powerpoint ppt presentation displayed as a flash slide show on id. Start here to learn about the different processes, how each work, and how to choose the process that is right for you. Plasma arc machining basic terms and working duration. These parameter values can be ranges like the current is 500a, voltage is 30v to 250v, the speed of cutting is. Pac is a thermal material removal process that is primarily used for cutting thick sections of electrically conductive materials. Making the desired product by melting and pouring the metal in desired cavity made in a mould. Potentials plasmas are excellent conductors simple view. In this type of winding, there are three types of gas.
Introduction plasma are initially employed to cut metals that are difficult to machine by conventional methods. View plasma cutting machine ppts online, safely and virus free. Manual plasma arc cutting power source buyers guide. The free electrons, in turn, get accelerated and cause further ionization and heating of the gases. Depress plasma start switch on torch begin cutting procedure. The adobe flash plugin is needed to view this content. Automation is available with portable trolleys rail. Introduction to water jet machining process advantages and disadvantages introduction to water jet machining. Water jet machine widely used for cutting plastic, cloth, rubber, paper and leather, because.
As shown in the figure, there are four types of matter solid, liquid, gas and plasma. 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 machining plasma physics electric arc scribd. View and download powerpoint presentations on plasma arc machining ppt. Experience gained from user contact and welding training of crewmembers showed that. 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. Winner of the standing ovation award for best powerpoint templates from presentations magazine. The purpose of the welding handbook for maritime welders is to provide guidance. Presentations and quizzes explore welding quizzes and presentations from miller, covering topics like mig, tig and stick welding, basic electricity and filler metal selection.
Nccer, welding level 1 trainee guide, 5th edition pearson. Plasma arc welding and machining project reports projects. The electric arc is formed between an electrode which is usually but not always made of sintered tungsten and the workpiece. Plasma can be defined as a superheated, electrically ionized gas. Plasma cutting is a process that cuts through electrically conductive materials by means of an accelerated jet of hot plasma. Plasma arc machining pam kcg college of technology. Plasma arc machining presented by rajkumar s w 1ms15mse10 mtechmse 25apr16 2. 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 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. Today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. 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.
With the high temperature involved, can be used for any material those resistant to oxy. Thermal joint preparation includes preparing a joint with the oxyfuel, plasma arc, or carbon arc. Due to the above, the electric fields in plasmas tend to be very small quasineutrality. Plasma arc cutting system the basic plasma arc cutting system consists of a power supply, an arc starting circuit and a torch. Ppt plasma arc cutting powerpoint presentation free to view id. Plasma arc welding paw is an arc welding process similar to gas tungsten arc welding gtaw. The term plasma, as employed in physics, means ionized particles. Find powerpoint presentations and slides using the power of, find free presentations research about plasma arc machining ppt. 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. Plasma arc machining pam 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. Introduction to water jet machining process advantages and. Plasma arc welding and machine seminar reportpdf ppt download introduction. Nonconductive materials such as wood or plastic cannot be cut with plasma cutters with transferred arc.
Machine tool electricaldischarge machining edm britannica. Plasma arc cutting 1 plasma arc cutting meng 439 dr. The cuts are made by a high temperature, high velocity gas jet generated by constricting an arc between a. Water jet machining wjm called hydrodynamic or equipment may be used for applications similar to the laser. In thesis work literature has been studied in context to parametric optimization of plasma arc cutting machine. Ppt plasma arc welding powerpoint presentation, free download. Laser beam machining is a thermal machining process which uses laser beam to produce heat. 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.
Ravindra reddy associate professor department of mechanical engineering chaitanya bharathi institute of technology definition. 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. Introduction the plasma arc machining process was introduced to the. Advantages and disadvantages of plasma arc welding,cutting. Ppt plasma arc welding powerpoint presentation free to download id. Basics of plasma arc cutting vs oxyfuel cutting grainger. Plasma cutting and its effect on mild steel presentation summary.
Plasma arc machining pam electric arc welding scribd. The torch produces a highvelocity jet of hightemperature ionized gas called plasma that cuts by melting and. The method also eliminated machining of hard edges, caused by metallurgical changes wrought by laser or plasma arc cutting. Plasma arc welding and machine seminar reportpdfppt download. 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. It mentions advantages of plasma arc welding cutting and disadvantages of plasma arc welding cutting. Plasma arc machining process pdf 10 plasma arc machining. The plasma arc process has always been seen as an alternative to the oxyfuel process. M p groover, fundamentals of modern manufacturing 4e welding processes 1. Covers plasma arc cutting methods for piercing, slotting, squaring, and beveling metals. Oct 19, 2011 plasma arc welding paw is the process of joining metals that are produced by heating using a constricted arc placed between an electrode and work piece.
Download welding plasma arc cutting air carbon and gouging base ppt for free. Introduction plasmaarc machining pam employs a highvelocity jet of hightemperature 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 cutting and its effect on mild steel background of plasma arc process in 1941 the u. Its high accuracy, finishing, ability of machining any hard materials and to produce intricate shape increases its demand in market. Machine torch plasma arc cutting system instruction manual. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. 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. Disadvantages of plasma arc machining the cutters electrode and nozzle sometimes require frequent replacement which adds to the cost of operation. Plasma arc cutting process pdf this is to certify pdftecnoinox ppf70e7 that the thesis entitled, pdftex def package documentation analysis of process.
Plasma arc machining pam employs a highvelocity jet of high temperature gas to melt and displace material in its path. These methods form a group of processes which removes excess material by various. The avalanche continues till a steady state is obtained in which. The cutting is faster about 5 to 10 times than oxyfuel. 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. 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. View and download powerpoint presentations on electrochemical grinding ppt. Plasma arc cutting process pdf plasma arc cutting process pdf plasma arc cutting process pdf download. It is the process of obtaining desired product from raw material classification metal casting. A concentrated plasma arc is produced and directed toward the weld area. You need to cut metal, stone, rubber, or other industrial material but arent sure where to start. The basic arrangement for a plasma arc cutting torch, similar to the plasma arc welding torch, is shown in figure 1071. All aspects of mechanical, electrochemical and thermal processes are comprehensively covered.
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. M p groover, fundamentals of modern manufacturing 4e two categories of welding. Download air carbon arc cutting and gouging pcmac ppt for free. Air carbon arc cutting and gouging pcmac powerpoint presentation. 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. Principle of operation plasma arc welding is a constricted arc process. Plasma arc machining process, diagram, advantages and.
India is one of the four centres set up by world economic forum for industry 4. A highvelocity jet flow of hot ionized gas melts the metal and then removes the molten material to form a kerf. Called pam, this is a method of cutting metal with a plasmaarc, or tungsten inertgasarc, torch. The plasma arc cutting process cuts metal by melting a section of metal with a constricted arc. Plasma arc machining pam uses a highjet and hightemperature jet of gas to melt substances in its pathway. The figure depicts how one matter is obtained from the other and vice versa. Oxyfuel cutting, plasma arc cutting, and carbon arc cutting. 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. The plasma is sufficiently hot to melt the metal being cut and moves sufficiently fast to blow molten metal away from the cut.
This is a mixture of free electrons, positively charged ions, and neutral atoms. Plasma arc cutting process and equipment considerations. For example, for 12 mm steel, plasma cutting costs are about half those of oxyfuel. Plasma arc cutting article about plasma arc cutting by the. The material removal takes place by directing a high velocity jet of high temperature 11,00030,000. Plasma cutting and its effect on mild steel xpowerpoint. Introduction plasma arc machining is a material removal process. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect.
It gives a balanced account of both theory and applications, contains illustrative exercises and an extensive uptodate bibliography. Ppt plasma arc welding powerpoint presentation free to. Narrow plasma jet melts the workpiece material in its path. Plasma arc machining free download as powerpoint presentation. This channel is formed by faculty from bit to enhance the knowledge of students towards technical and fundamentals this video explains plasma arc machining. Following are the advantages of plasma arc cutting. Following are the disadvantages of plasma arc cutting. The arc is constricted with the help of a watercooled small diameter nozzle which squeezes the arc, increases its pressure, temperature and heat intensely and thus improves arc stability, arc shape and heat transfer characteristics. Plasma arc machining or laser beam machining is that which is the last point. Scribd is the worlds largest social reading and publishing site.
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. 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. Machine tool machine tool electricaldischarge machining edm. Unconventional machining processes plasma arc machining how plasma arc machining takes place high temperature machining. In this machining process metal is removed by melting and vaporization of metal particle from surface of work piece. Our machines are capable to cut materials of up to 150mm6 inch thickness. Called pam, this is a method of cutting metal with a plasma arc, or tungsten inertgas arc, torch.
The plasma arc cutting process is illustrated in fig. 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. Find powerpoint presentations and slides using the power of, find free presentations research about electrochemical grinding ppt. Plasma arc machining pam plasma arc machining is a nontraditional thermal process. Pdf experimental investigation of the plasma arc cutting. 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. Typical materials cut with a plasma torch include steel, stainless steel, aluminum, brass and copper, although other conductive metals may be cut as well.