Plasma arc cutting pac is a widely used industrial process for the cutting of different types of metals in several operating conditions. However, as with any piece of equipment you need to know. Page 1 page 2 page 3 operator manual page 4 page 5 page 6 page 7 page 8 table of contents page 9 page 10 page 11 page 12 page page 14 page 15 electromagnetic compatibility emc page 16 earthing of the workpiece page 17 warranty page 18 waterjet product warranty coverage page 19 installation and setup. Pdf optimization of process parameters in plasma arc. After arc start and detected the arc signal, and pierce delay, then it shows the actual cutting volt. The plasma torch contains an electrode made out of tungsten fixed in a nozzle which is made of. Cut direction must be considered when programming the plasma cutter. Plasma is defined as a gas that has been heated to a sufficiently high temperature to become partially ionized. Prediction model of surface roughness parameters of. One example was the spray coating of the turbine blades of. Experimental investigation of cutting parameters in plasma arc cutting. Plasma arc cutting pac is a thermal cuttingstudy the effect of process parameters in plasma arc cutting on quard400 material using analysis of variance parthkumar patela, shrekumar sonia, nitin kotkundeb, navneet khannaa amechanical engineering department, iitramgovernment of gujarat initiative, ahmedabad a 380026, india.
Optimization of process parameters in plasma arc cutting of en 31 steel based on mrr and multiple roughness characteristics using grey relational analysis. Choosing cutting parameterscalculating cutting speed and. This is because the holes in the swirl ring produce a swirl in the plasma jet. Optimization of plasma arc cutting by applying taguchi method. Optimization of cut surface quality during cnc plasma arc. The schematic arrangement of plasma arc machining is shown in fig. Plasma arc cutting history milestones the objective of this paper is the investigation and determination of the most important parameters that influence the cutting quality on oxygen plasma cutting. Zone which is to be minimized to have optimized settings of process parameters. Introduction basically there are three states of matter i. Optimization of plasma arc cutting of mild steel thin plates. Plasma arc cutting is such a simple process you could almost take it out of the box and start using it.
Since last many years, the precise and accurate machining technology of hard metals ferrous, nonferrous and. Apr 24, 2020 the plasma arc cutting process cuts metal by melting a section of metal with a constricted arc. When during cutting, press the menu button to check the setting arc volt. The plasma arc process has always been seen as an alternative to the oxyfuel process. Plasma cutting dual flow plasma arc water injection plasma cutting underwater plasma cutting high tolerance plasma cutting fig. Plasma arc machining pam plasma arc machining is a nontraditional thermal process. Plasma arc cutting history milestones the objective of this paper is. It can save the preheat time for the thick steel plate. Pdf an experimental analysis of process parameter on cnc plasma arc cutting machine editor iaset academia. The cutting parameters studied were cutting speed mmmin, torch standoff distance mm, and arc voltage volts. The term plasma, as employed in physics, means ionized particles. Constriction of arc results in a reduction in crosssectional area of arc, b increases d increases energy density. The arc is started between the electrode and the tip of nozzle. The plasma arc welding process is normally compared to the gas tungsten arc process.
Plasma arc cutting dimensional accuracy optimization employing. A system, in some embodiments, includes a multitorch power supply. 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 air is used as plasma gas as well as secondary gas. Plasma arc cutting pac is a thermal cutting process that makes use of a constricted jet of hightemperature plasma gas to melt and separate cut metal. This makes plasma cutting particularly wellsuited for cutting sheet metal, a task the oxyacetylene cutting torch is not particularly wellsuited for since it leaves a lot of slag on the. Us20080149602a1 welding and plasma cutting method and. The finish side of the plasma cut is the right side of the cut when facing the direction of travel. In plasma arc cutting process the quality of cut is defined using standard en iso 90. 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. Pac of mild steel thin plates of 10 mm through a kali100 plasma arc cutting machine is operating in the range 25120 a. The focus on this project is to obtain an optimum condition setting to obtain maximum mrr and minimum the surface roughness sr. Optimization of plasma arc cutting by applying taguchi. Plasma cutting is a process that cuts through electrically conductive materials by means of an accelerated jet of hot plasma.
Plasma cutting in dry conditions workshop hand held plasma arc torch used on contaminated material manipulator with plasma arc cutting tool 34 international atomic energy agency other thermal. The plasma jet that does the cutting is hotter and narrower than an oxyacetylene flame, so the kerfs width is smaller, and can get cleaner cuts. The plasma welding consists only of the plasmaarc welding process which works with a transferred arc. The process was unique in that it could achieve precision cutting and welding on both thin and. Various plasma arc cutting process parameters directly affect the stability, cutting quality and effect of the cutting process. Then the arc or flame is transferred to the material to be welded. In this type of winding, there are three types of gas. The power supply has a first circuit configured to control output to a first electrical torch, and a second circuit configured to control output. Operating instructions and parts manual plasma cutter description the plasma 375 is an igbt inverter plasma cutter with thermal overload protection, a trafimet torch and a builtin gas regulator. The plasma arc welding and cutting process was invented by robert m.
Cnc plasma cutting machine operational manual machinemfg. Surface roughness and mrr effect on manual plasma arc cutting machining. The plasma arc cutting process cuts metal by melting a section of metal with a constricted arc. The plasma welding consists only of the plasma arc welding process which works with a transferred arc. Experimental investigation of cutting parameters in plasma arc. The power supply has a first circuit configured to control output to a first electrical torch, and a second circuit configured to control output to a second electrical torch. The plasma torch contains an electrode made out of tungsten fixed in a nozzle which is made of copper. Like a router, the direction of travel the plasma torch takes will affect the cut quality. Plasma arc cutting dimensional accuracy optimization employing the parameter design approach article pdf available january 2017 with 944 reads how we measure reads. Plasma arc welding process principle, main parts, working. Page 1 page 2 page 3 operator manual page 4 page 5 page 6 page 7 page 8 table of contents page 9 page 10 page 11 page 12 page page 14 page 15 electromagnetic. Pdf experimental investigation of the plasma arc cutting. This easy to use plasma cutter has the power to cut up to 38 in. The process parameters tested include cutting speed, cutting height and arc voltage.
Cv kurnia abadi cnc plasma cutting, engaged in cnc plasma cutting based metal cutting services the manufacture of ornaments from steel metal to aluminum. The plasma arc melts the metal, and the high velocity gas. This electrode is connected to the negative terminal of a dc power supply. Test comes about are given to affirm the viability of this. The basic arrangement for a plasma arc cutting torch, similar to the plasma arc welding torch, is shown in figure 1071. Plasma arc machining process, diagram, advantages and. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Plasma cutting process is invented about 30 years ago for processing hard and difficult to machine materials.
The topic for the thesis writing is the analysis of process parameters of plasma arc cutting using design of experiment techniques. Experimental investigation of the plasma arc cutting process. Subsequently, the material is removed by its melting and flushing, or by a chemical reaction between the plasma and the material 24. Study the effect of process parameters in plasma arc cutting. Plasma cutting is a process that is used to cut steel and other metals or sometimes other materials using a plasma torch. Optimization of process parameters in plasma arc cutting of en 31. Hypertherm powermax45 xp operators manual pdf download. In this paper the samples of 15 mm thick plates of s235 were used to create 17 cuts. A highvelocity jet flow of hot ionized gas melts the metal and then removes the molten material to. Plasma arc cutting pac is a nonconventional process which can perform several electrically conducting materials, stainless steel, aluminum and its alloys, magnesium, titanium alloys, manganese steel and cast iron. Jul 24, 2017 the plasma arc welding process is normally compared to the gas tungsten arc process. Pdf plasma arc cutting optimization parameters for aluminum. This work aims at evaluating processing parameters, such as the cutting power, scanning speed, cutting height and plasma gas pressure. 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.
The significant parameters taken in to consideration are cutting speed and cutting current. In this study 12 mm plate thickness hardox400 has been cut by high tolerance voltage, cutting speed, and plasma gas flow rate included as main parameters in the analysis and their effect on unevenness of cut surface is evaluated. Plasma cutting machine is a new type of hot cutting equipment, its working principle is based on the compressed air as working gas, high temperature and high speed of plasma arc as heat source, molten metal will be partially melted, and at the same time highspeed air blow away the molten metal, and form the narrow cut seam. View and download hypertherm hpr400xd manual online. Analysis of means anom and analysis of variances anova were used in. Plasma arc cutting process and equipment considerations twi.
Test comes about are given to affirm the viability of this approach. The plasma arc cutting process is illustrated in fig. The metal shieldedgas welding is limited to the metal inertgas welding process. Chapter 1 early plasma cutting the plasmaarc cutting process saw its first commercial application in the early 1960s. A highvelocity jet flow of hot ionized gas melts the metal and then removes the molten material to form a kerf. Consequently, common applications for pac consisted of repeating cutting patterns in a massproduction mode.
Plasma arc cutter machine model ps100 was used to cut the specimens made from aluminium alloy 1100 manually based on the selected. Early plasma cutters were large, slow, and expensive. Current intensity, plasma gas voltage, traverse speed, workpiece thickness type of material workpieces nozzle distance. Since last many years, the precise and accurate machining technology of. This makes plasma cutting particularly wellsuited for. Developments in plasma arc cutting pac of steel alloys. In this part of the series the process fundamentals are described with emphasis being placed on the operating features. Plasma arc cutting pac is a nonconventional process which can perform several electrically conducting materials, stainless steel, aluminum and its alloys, magnesium, titanium alloys, manganese. It was also capable of spray coating hardening metals onto other metals.
Investigation analysis of plasma arc cutting parameters on. 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. 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 machine is a new type of hot cutting equipment, its working principle is based on the compressed air as working gas, high temperature and high speed of plasma arc as heat source. The process was unique in that it could achieve precision cutting and welding on both thin and thick metals. Setting arc volt and actual cutting volt display function before plasma arc, it shows the setting arc volt. Therefore, tig arc burns at temperature lower than plasma arc. Typical materials cut with a plasma torch include steel, stainless steel.
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