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US 2025/0178069 A1Published application
Coiling machine and production method for coil springs
AssigneeNHK Spring Co., Ltd.
InventorsHisashi IWATA, Shogo ICHIKAWA, Yuichiro YAMAUCHI, Ryo TANAKA
Life of this patent
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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/mm2 and less than or equal to 100 W/mm2.
Claims12
A coiling machine comprising:
- a laser heater configured to emit laser light to a wire formed into a helical shape, thereby heating a portion of the wire;
- and
- a cutting unit configured to cut a site of the wire heated by irradiation with the laser light, wherein
- an output density of the laser light is greater than or equal to 10 W/mm2 and less than or equal to 100 w/mm2.
1 more element
A coil spring manufacturing method including:
- emitting laser light to a wire formed into a helical shape, thereby heating a portion of the wire;
- and
- cutting a site of the wire heated by irradiation with the laser light, wherein
- an output density of the laser light is greater than or equal to 10 W/mm2 and less than or equal to 100 w/mm2.
1 more element
Dependencies are inferred from the claim text.