JPS5715641A - Cutting and hardening of steel machine parts - Google Patents
Cutting and hardening of steel machine partsInfo
- Publication number
- JPS5715641A JPS5715641A JP9045980A JP9045980A JPS5715641A JP S5715641 A JPS5715641 A JP S5715641A JP 9045980 A JP9045980 A JP 9045980A JP 9045980 A JP9045980 A JP 9045980A JP S5715641 A JPS5715641 A JP S5715641A
- Authority
- JP
- Japan
- Prior art keywords
- machine parts
- cutting
- steel machine
- amount
- room temperature
- 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.)
- Granted
Links
Landscapes
- Turning (AREA)
Abstract
PURPOSE: To facilitate dimension control of finished steel machine parts by compensating an amount of thermal contraction with that of expansion due to transformation and by determining desired dimensions of steel machine parts is such a manner that dimensions of a work piece upon cutting are made equal to that cooled down to room temperature.
CONSTITUTION: With setting a tool at the same position of a desired dimension as conventional steel machine parts in its room temperature state, a work piece C point temperature range is machined through cutting in its austenite phase. Thus, during a process of cooling down to room temperature after completion of the cutting in its austenite phase, the desired dimentions of steel machine parts are finally obtained by compensating an amount of thermal contraction C-D with an amount of thermal expansion D-E due to martenisitic transformation. C point is the temperature which gives an amount of thermal expansion equal to that of expansion due to martensitic transformation brought about during cooling down to room temperature from Ms point, and which is within a temperature range from 300W500°C, although it can be readily determined.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9045980A JPS5715641A (en) | 1980-07-01 | 1980-07-01 | Cutting and hardening of steel machine parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9045980A JPS5715641A (en) | 1980-07-01 | 1980-07-01 | Cutting and hardening of steel machine parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5715641A true JPS5715641A (en) | 1982-01-27 |
| JPH0133290B2 JPH0133290B2 (en) | 1989-07-12 |
Family
ID=13999190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9045980A Granted JPS5715641A (en) | 1980-07-01 | 1980-07-01 | Cutting and hardening of steel machine parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5715641A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644740A (en) * | 1979-09-18 | 1981-04-24 | Hitachi Metals Ltd | Permanent magnet alloy |
| JPS59129645A (en) * | 1983-01-12 | 1984-07-26 | Ntn Toyo Bearing Co Ltd | Method of controlling size of work |
| JPS59129644A (en) * | 1983-01-12 | 1984-07-26 | Ntn Toyo Bearing Co Ltd | Method of controlling size of work |
| US4737589A (en) * | 1985-08-27 | 1988-04-12 | Nippon Kayaku Kabushiki Kaisha | Platinum Complexes |
-
1980
- 1980-07-01 JP JP9045980A patent/JPS5715641A/en active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644740A (en) * | 1979-09-18 | 1981-04-24 | Hitachi Metals Ltd | Permanent magnet alloy |
| JPS6221858B2 (en) * | 1979-09-18 | 1987-05-14 | Hitachi Metals Ltd | |
| JPS59129645A (en) * | 1983-01-12 | 1984-07-26 | Ntn Toyo Bearing Co Ltd | Method of controlling size of work |
| JPS59129644A (en) * | 1983-01-12 | 1984-07-26 | Ntn Toyo Bearing Co Ltd | Method of controlling size of work |
| JPH0117829B2 (en) * | 1983-01-12 | 1989-04-03 | Ntn Toyo Bearing Co Ltd | |
| JPH0126818B2 (en) * | 1983-01-12 | 1989-05-25 | Ntn Toyo Bearing Co Ltd | |
| US4737589A (en) * | 1985-08-27 | 1988-04-12 | Nippon Kayaku Kabushiki Kaisha | Platinum Complexes |
| US4921984A (en) * | 1985-08-27 | 1990-05-01 | Nippon Kayaku Kabushiki Kaisha | Novel platinum complexes |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0133290B2 (en) | 1989-07-12 |
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