Kovinska galanterija NBM
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is a sheet metal forming process in which a sheet metal blank is radially drawn into a forming die by the mechanical action of a punch. It is thus a shape transformation process with material retention.
The material must have good forming properties, even thickness and be isotropic (i.e. have the same properties in all direction). Cold and warm rolled sheet steel with carbon content of 0.08 to 0.12 per cent, stainless steel, galvanized steel, brass, aluminum, zinc, nickel and precious metals are suitable for deep drawing.
Flow Forming TIG welding
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