Patent ID: 6230408
Filing Date: 2001-05-15
Classification: B23P,F28D,F28F,Y10T

Abstract:
A method for fabrication of heat exchangers, in which individual metal layers have structured surfaces and the structured metal layers are stacked and joined together to form a microstructure body with channel like passageways comprising the steps of:a) incorporating a structured image in a surface of a body so as to form a structurized body, wherein said body has a surface structure inverse to said structure of said individual metal layers to be formed;b) forming a metallic galvanic layer on the surface of the structurized body, said metallic galvanic layer having a surface structure which is inverse to said surface structure of said body,c) electroeroding a metallic mold insert by utilizing said metallic galvanic layer as an electrode, said metallic mold insert after being electroeroded having a surface with a structure which is inverse to said surface of the metallic galvanic layer used as an electrode; andd) forming said individual metal layers of said heat exchanger using said metallic mold insert.