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How to ensure the consistency of the cutting width of the CNC plasma cutting machine

How to ensure the consistency of the cutting width of the CNC plasma cutting machine

 

When cutting stainless steel, because the heated zone quickly passes the critical temperature of 649 ℃, chromium carbide will not precipitate along the grain boundaries. Therefore, the use of plasma arc cutting stainless steel will not affect its corrosion resistance.

The cutting width of arc cutting of CNC plasma cutting machine is 1.5 ~ 2 times wider than the cutting width of oxy-acetylene cutting. As the thickness of the board increases, the cutting width also increases. For stainless steel or aluminum with a thickness of less than 25mm, it can be cut with a small current plasma arc. The straightness of the cut is very high, especially when cutting a plate with a thickness of less than 8mm, small corners can be cut even without processing. Direct welding is difficult to obtain with high current plasma arc cutting. Under normal circumstances, there is a melting layer of about 0.25 ~ 3.80mm thick on the surface of the plasma arc cut, but the chemical composition of the cut surface has not changed.

CNC plasma cutting machine is to use a plasma arc to penetrate the material surface to achieve the cutting effect. Plasma arc often cuts more metal from the upper and lower parts of the cut, making the cut end face slightly inclined. The upper edge is generally square, but sometimes slightly round. It may cause the gap between the two cutting surfaces on the upper edge of the cut caused by the cutting beam.

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