Extrusion process in which a punch hits the ingot placed in a mold, so that the ingot assumes the shape of the mold and is extruded up the side of the punch. Beskrivning The process The workpiece is a thin ingot [1], which together with a lubricant is placed in a mold [2]. The punch [3] is pressed against the ingot with an applied pressing force which forces the ingot to flow against the mold sides and up along the stroke of the punch [4]. The part is released by means of a stripper plate [5] when the punch returns to its upper position. Impact extrusion Process films Advantages and disadvantages In comparison with alternative methods Fast production cycle Economic mass production Cures natural alloys that can not be treated with heat Products that are dense and non-porous in structure Significant heat dissipation from deformation at high speeds Limited product size
