COILING MACHINE AND PRODUCTION METHOD FOR COIL SPRINGS

Abstract: a coiling machine comprises a laser heater which emits laser light to a wire formed into a helical shape, thereby heating a portion of the wire, and a cutting unit which cuts a site of the wire heated by irradiation with the laser light. an output density of the laser light is greater than or equal to 10 w/mmand less than or equal to 100 w/mm.

Inventor(s): Hisashi IWATA, Shogo ICHIKAWA, Yuichiro YAMAUCHI, Ryo TANAKA

CPC Classification: B21F3/02 (WORKING OR PROCESSING OF METAL WIRE ({reducing diameter by} rolling of metal ; by drawing, auxiliary operations used in connection with metal-working without essentially removing material ; bundling articles ))

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