Cnc Programming

What Is 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. The term plasma as employed in physics means ionized particles.

Plasma Arc Welding Process Techminy

Plasma Arc Machining Process

Plasma Arc Cutting Mechanism Download Scientific Diagram

So that means that plasma cutting is only used for materials that are conductive primarily mild steel stainless steel and aluminum.

What is plasma arc machining. Just as oxy fuel torches can be used for either welding or cutting so too can plasma torches which can achieve plasma arc welding or plasma cutting. As the gas comes in contact with the plasma there is a collision between the atoms of a gas and electrons of an electric arc and as a result we get an ionised gas. The plasma arc process has always been seen as an alternative to the oxy fuel process. Actually all welding arcs are partially ionized plasmas but the one in plasma arc welding is a constricted arc plasma. When a flowing gas is heated to a sufficiently high temperature to become partially ionized it is known as plasma. Plasma arc machining pam employs a high velocity jet of high temperature gas to melt and displace material in its path. Plasma arc machining pam. Now this plasma is targeted towards the workpiece with a high velocity and the machining process starts. Thats a transferred arc. Plasma is defined as a gas that has been heated to a sufficiently high temperature to become partially ionized and therefore electrically conductive. There are some systems that use a non transferred arc where it jumps from the electrode back to the nozzle but those are not usually used for cutting. That means we get the plasma state that we wanted for plasma arc machining. The torch produces a high velocity jet of high temperature ionized gas plasma that cuts by melting and displacing material from the workpiece. In this post you learn what is plasma arc machining how its done working principle advantages limitations and more. Pam is a method of cutting metal with a plasma arc or tungsten inert gas arc torch.

Today plasma retains the original advantages. Plasma cutting is used in cutting and gouging. The plasma arc cutting process is illustrated in fig. Plasma arc machining pam plasma arc machining is a nontraditional thermal process. Understanding the basics of plasma arc cutting and plasma arc gouging will help welding operators be more successful with these techniques. 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. 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.