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Stainless steel sheet is very suitable for laser welding machine

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Stainless steel sheet is very suitable for laser welding machine

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2020-11-16

Stainless steel sheet is very suitable for laser welding machine

A fiber laser welder sends a laser beam to the fiber. Through a series of processing, pulse welding and continuous welding can be realized. It can solve problems such as deformation and appearance of welds that are likely to occur in the laser welding process of stainless steel sheets. Laser welding is best for stainless steel plates, but laser spot energy is very small even if the thickness is less than 0.1 mm, so welding is possible. Laser welding is generally automatically controlled, and the welding energy and speed are good.

In laser welding of stainless steel sheets, the pulse current and pulse width have a great influence on the formation of the weld. Under proper process parameters, ultra-thin stainless steel sheets have good weld formation and welded joints are basically the same as the base metal. Compared to traditional welding, the laser beam can obtain smaller spots after focusing and can be pinpointed accurately. These properties make laser seam welding suitable for welding smaller size workpieces than other welding methods.

The thermal conductivity of stainless steel sheets is very low, about one-third that of ordinary low carbon steels, and the degree of restraint is small, so heating and cooling parts during the welding process causes non-uniform stress and strain. .. .. The longitudinal shrinkage of the weld creates a constant pressure on the outer edge of the stainless steel sheet. If the pressure is too high, the workpiece will be deformed, but the aesthetic effect will also affect the quality of the workpiece. In addition to overburn and burnthrough issues.

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