Cnc Programming

Accuracy Of Plasma Arc Machining

Plasma arc cutting pac is a thermal manufacturing process used for metal plates cutting. The term plasma as employed in physics means ionized particles.

Plasma Arc Machining Pam Electric Arc Welding

Better Bevels With Plasma Arc Cutting

Plasma Arc Cutting Phases 6 7 8 Download Scientific

Plasma arc machining pam employs a high velocity jet of high temperature gas to melt and displace material in its path.

Accuracy of plasma arc machining. The cuts are made by a high temperature high velocity gas jet generated by constricting an arc between a tungsten electrode and the component. Systems of the past without sinusoidal ac servomotors antibacklash gear heads and precision linear guides normally would achieve only 0015 in. Plasma cutting systems that feature these technologies have machine motion positioning accuracy of 0004 inch. 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. Plasma arc cutting is faster than oxyfuel for cutting steel up to 50 mm thick and is competitive for greater thickness. Advantages of plasmaarc machining rapid cutting speeds. Today plasma retains the original advantages. The principle of plasma arc machining is shown in the figure. Plasma is defined as a gas that has been heated to a sufficiently high temperature to become partially ionized and therefore electrically conductive. Is passed through a small chamber in which a high frequency spark arc is maintained between the tungsten electrode cathode and the copper nozzle. A high precision plasma system concentrates arc energy in a small area in effect creating a sharper cutting tool. The bevel is caused by the swirling action of the air in which the cutting arc travels when it exits the torch. Plasma cutting achieves speeds greater than those of laser cutting systems for thickness over 3 mm. In a plasma torch known as the gun or plasmatron a volume of gas such as h2 n2 02 etc. By a slight 4 to 5 degree bevel in the cut face.

Working principle of plasma arc machining. It had the advantages over traditional metal against metal cutting of producing no metal chips giving accurate cuts and producing a cleaner edge than oxy fuel cuttingearly plasma cutters were large somewhat slow and expensive and therefore tended to be. Plasma cutting grew out of plasma welding in the 1960s and emerged as a very productive way to cut sheet metal and plate in the 1980s. The thicker the. Plasma arc machining pam plasma arc machining is a nontraditional thermal process. The japanese invented the first high precision systems in the 1980s and us. This work experimentally investigates the influence of process parameters onto the dimensional accuracy. Plasma arc cutting revision 20 september 2014 12 plasma arc cutting accurate cuts can be made in stainless steel and non ferrous metals such as aluminium by plasma arc cutting. Torchmate cadcam software lets you design and layout parts and their tool paths for cutting on your cnc cutting system. Companies began developing systems in the early 1990s. The inherent accuracy of plasma arc.