JPS5662916A - Production of bushing - Google Patents
Production of bushingInfo
- Publication number
- JPS5662916A JPS5662916A JP13922179A JP13922179A JPS5662916A JP S5662916 A JPS5662916 A JP S5662916A JP 13922179 A JP13922179 A JP 13922179A JP 13922179 A JP13922179 A JP 13922179A JP S5662916 A JPS5662916 A JP S5662916A
- Authority
- JP
- Japan
- Prior art keywords
- bushing
- hardening
- inside circumferential
- time
- abrasion resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Laser Beam Processing (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE:To form a hardened layer of extremely small heat treatment strain and superior abrasion resistance by irradiating a bushing by focusing laser light while rotating the same at the time of hardening the inside circumferential of the bushing for rolling stock. CONSTITUTION:Laser light 4a generated by a CO2 laser oscillator 3 is reflected and focused by a concave reflection mirror 5 and the inside circumferential surface of a bushing 2 is irradiated by this light, whereby it is hardened and heat treated. At this time, the bushing 2 is placed on a moving device 6 and is rotated; at the same time, it is moved in the axial direction Y so that the inside circumferential surface of the bushing 2 is uniformly irradiated. The heat treatment strain which occurs in the case of surface hardening by carburizing and hardening is not produced; in addition, such a defect that the hardness is decreased by the formation of metal structure owing to the diffusion of carbon is obviated and the hardened layer having extremely high abrasion resistance is formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13922179A JPS5662916A (en) | 1979-10-30 | 1979-10-30 | Production of bushing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13922179A JPS5662916A (en) | 1979-10-30 | 1979-10-30 | Production of bushing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5662916A true JPS5662916A (en) | 1981-05-29 |
Family
ID=15240323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13922179A Pending JPS5662916A (en) | 1979-10-30 | 1979-10-30 | Production of bushing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5662916A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6140605A (en) * | 1995-02-06 | 2000-10-31 | Elotherm Gmbh | Method and device for treating the surfaces of component bores |
-
1979
- 1979-10-30 JP JP13922179A patent/JPS5662916A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6140605A (en) * | 1995-02-06 | 2000-10-31 | Elotherm Gmbh | Method and device for treating the surfaces of component bores |
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