Cnc Programming

Plasma Arc Machining History

The plasma arc cutting process is illustrated in fig. History of plasma technology.

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

Plasma arc machining history. Understanding the basics of plasma arc cutting and plasma arc gouging will help welding operators be more successful with these techniques. The torch produces a high velocity jet of high temperature ionized gas plasma that cuts by melting and displacing material from the workpiece. Plasma arc machining pam. Filler metal may or may not be added. 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. Advances over the last 35 years such as nozzle design and cutting environment are covered. The term plasma as employed in physics means ionized particles. Gage in 1953 and patented in 1957. The process employs two inert gases one forms the arc plasma and the second shields the arc plasma. Plasma cutting evolved from tungsten inert gas tig welding. The plasma arc welding and cutting process was invented by robert m. The plasma arc technology was originally created for a faster way of welding war aircrafts like aeroplanes helicopters and even vehicles. Pam is a method of cutting metal with a plasma arc or tungsten inert gas arc torch. Back then the process of joining metal together was taking too long especially during war times and hence the us defence department was looking for a more efficient way. 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.

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. 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. By constricting the nozzle opening gas velocity increased and effectively blasted molten metal away from the puddle created by the arc. 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. Today plasma retains the original advantages. Plasma is defined as a gas that has been heated to a sufficiently high temperature to become partially ionized and therefore electrically conductive.