Patent ID: 6253452
Filing Date: 2001-07-03
Classification: B21C,B21D,B23P,F28F,H01L,Y02P,Y10T

Abstract:
A method for manufacturing a cylindrical radiator, comprising the steps of:a. drawing material to form an elongated blank material having a hollow cylindrical base section and multiple heat-radiating fins radially projecting from an outer circumference of the base section;b. cutting said elongated blank material to form a plurality of blanks of predetermined length; and,c. for each of said plurality of blanks:i) axially turning an upper portion of said hollow cylindrical base section to separate a top portion of each of said heat-radiating fins from each other and maintaining a bottom root portion of each of said heat-radiating fins integrally connected to said hollow cylindrical base section;ii) clamping opposing axial ends of said plurality of heat-radiating fins with a pair of clamps and rotating said clamps in opposing directions relative to one another for bending said heat-radiating fins into a turbo fin configuration;iii) forming a fan seat with a disc section having a boss section axially projecting from a central portion of said disc section and dimensioned to snugly fit a central through hole of said base section;iv) forming a dent in a top end of said boss section for receiving a fan therein; and,v) fitting said boss section of said fan seat into said central through hole of said base section.