ŠTĚPÁN Karel Matex PM, s.r.o.

Spoluautoři MÍŠEK Michal, NĚMEČEK Stanislav

Laser welding can be essentially three ways. Without filler material, with filler material (cold wire, hot wire) or a hybrid method. Currently, the most common and technologically simplest method is welding without filler material. However, this method requires high precision preparation of welded parts. Usually the weld gap must not be greater than 0.2 or 0.3 mm depending on the diameter of the laser beam. The contact surfaces of the welded parts should be in most cases milled or laser shaped. This disadvantage is eliminated by using filler wire, which is confirmed in this article. By the experiment was identified relationship between the width of the weld gap, appropriate wire diameter, wire feed rate, welding speed and laser power. The main goal is to map the possibilities and qualitative properties of this system with focus to practical usage.

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