JPS6442525A - Production of machining parts by warm forging - Google Patents
Production of machining parts by warm forgingInfo
- Publication number
- JPS6442525A JPS6442525A JP19943587A JP19943587A JPS6442525A JP S6442525 A JPS6442525 A JP S6442525A JP 19943587 A JP19943587 A JP 19943587A JP 19943587 A JP19943587 A JP 19943587A JP S6442525 A JPS6442525 A JP S6442525A
- Authority
- JP
- Japan
- Prior art keywords
- temp
- warm
- steel
- range
- specific
- 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
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE:To produce a machining parts having excellent dimensional accuracy by giving the prescribed tensile stress in the specific temp. range while control- cooling a steel for structural use having the specific composition under the specific condition and next, executing warm forging at the specific temp. CONSTITUTION:The steel for structural use containing by weight of 0.2-0.8% C, 0.15-0.35% Si, 0.3-2.0% Mn and one or more kinds of Ni, Cr, Mo in the range of making <=0.5 deg.C/sec of the critical cooling velocity of pearlite is produced. This steel is applied at 2-10kgf/mm<2> tensile stress in the temp. range from 500 deg.C to Ar3 point while cooling at the temp. from Ac3 point or above to critical cooling velocity or below of the pearlite. Next, it is heated and warm-forged at 590-670 deg.C to make each kind of the machining part. By this method, the warm-forging becomes easy and the dimensional accuracy of the product is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19943587A JPS6442525A (en) | 1987-08-10 | 1987-08-10 | Production of machining parts by warm forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19943587A JPS6442525A (en) | 1987-08-10 | 1987-08-10 | Production of machining parts by warm forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6442525A true JPS6442525A (en) | 1989-02-14 |
Family
ID=16407771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19943587A Pending JPS6442525A (en) | 1987-08-10 | 1987-08-10 | Production of machining parts by warm forging |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6442525A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6055102A (en) * | 1996-05-21 | 2000-04-25 | Hewlett-Packard Company | Optical isolator having surface mountable open core |
| JP2006225735A (en) * | 2005-02-18 | 2006-08-31 | Toyota Motor Corp | Non-heat treated steel material and producing method therefor |
-
1987
- 1987-08-10 JP JP19943587A patent/JPS6442525A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6055102A (en) * | 1996-05-21 | 2000-04-25 | Hewlett-Packard Company | Optical isolator having surface mountable open core |
| JP2006225735A (en) * | 2005-02-18 | 2006-08-31 | Toyota Motor Corp | Non-heat treated steel material and producing method therefor |
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