METHOD OF MANUFACTURING A HEAT EXCHANGER

摘要

A method of manufacturing a heat exchanger is disclosed. The heat exchanger comprises a plurality of fin members including a plurality of fins that is arranged in parallel and protrudes from a flat-plate base so that slit portions are formed on both side ends in a width direction of the base, the fin members being arranged so that respective bases abut on each other in a frame. Specifically, the method comprises: an extrusion molding operation of extrusion-molding a long fin member; a fin cutting operation of cutting the long fin member having just been extrusion-molded to cut the long fin member by a predetermined width; and a base cutting operation of cutting a long base in a long-fin cutting region made in the fin cutting operation so that slit portions are formed.