FIELD: performing operations.
SUBSTANCE: invention can be used in production of welded joint of parts, surface of which is preliminarily processed by grinding and coated with protective film, namely during preparation of parts for welding. A protective film is removed from the surface of the parts in the area of the intended weld by laser ablation along a line with offset of 7-20 mm from it, after which the parts are joined by welding.
EFFECT: possibility to preserve maximum surface area of finished product in polished condition under protective film.
1 cl, 2 dwg
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