Cnc Programming

Process Of Plasma Arc Machining

The process employs two inert gases one forms the arc plasma and the second shields the arc plasma. 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.

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Plasma arc machining pam plasma arc machining is a nontraditional thermal process.

Process of plasma arc machining. The plasma arc cutting process is illustrated in fig. Plasma arc machining process diagram application advantages and disadvantages. In the whole process high temperature conditions are required. 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 high velocity jet of high temperature gas to melt and displace material in its path. Gage in 1953 and patented in 1957. Now this plasma is targeted towards the workpiece with a high velocity and the machining process starts. The term plasma as employed in physics means ionized particles. The plasma jet cutting is similar to keyhole mode of plasma welding except that unlike welding the keyhole is not allowed to close behind the plasma arc. In this process an inert gas is blown at high speed out of a nozzle. One thing to note down is that a high potential difference is applied in order to get the plasma state. The plasma arc welding and cutting process was invented by robert m. Today plasma retains the original advantages. Called pam this is a method of cutting metal with a plasma arc or tungsten inert gas arc torch. That means we get the plasma state that we wanted for plasma arc machining.

Plasma cutting is a process that cuts through electrically conductive materials by means of an accelerated jet of hot plasmatypical materials cut with a plasma torch include steel stainless steel aluminum brass and copper although other conductive metals may be cut as wellplasma cutting is often used in fabrication shops automotive repair and restoration industrial construction and. Plasma arc machining pam employs a high velocity jet of high temperature gas to melt and displace material in its path. The plasma arc process has always been seen as an alternative to the oxy fuel process. Filler metal may or may not be added. In plasma arc cutting pac process the metal is cut by melting a localized area with the constricted arc and removing the molten material with a high velocity hot ionised gas called plasma jet. 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. Working principle plasma arc cutting is a very complex process that is used in order to cut steel and other metalsor sometimes other materials using a plasma torch. Plasma is defined as a gas that has been heated to a sufficiently high temperature to become partially ionized and therefore electrically conductive.