JPS6218624B2 - - Google Patents
Info
- Publication number
- JPS6218624B2 JPS6218624B2 JP9494178A JP9494178A JPS6218624B2 JP S6218624 B2 JPS6218624 B2 JP S6218624B2 JP 9494178 A JP9494178 A JP 9494178A JP 9494178 A JP9494178 A JP 9494178A JP S6218624 B2 JPS6218624 B2 JP S6218624B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- hardness
- punching
- steel
- constant 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.)
- Expired
Links
- 238000005520 cutting process Methods 0.000 claims description 35
- 238000004080 punching Methods 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 229910001566 austenite Inorganic materials 0.000 claims description 10
- 230000000717 retained effect Effects 0.000 claims description 9
- 238000010008 shearing Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 41
- 238000005482 strain hardening Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000734 martensite Inorganic materials 0.000 description 4
- 229910001563 bainite Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910001562 pearlite Inorganic materials 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Punching Or Piercing (AREA)
- Heat Treatment Of Articles (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9494178A JPS5522444A (en) | 1978-08-03 | 1978-08-03 | Cutting blade for blanking dies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9494178A JPS5522444A (en) | 1978-08-03 | 1978-08-03 | Cutting blade for blanking dies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5522444A JPS5522444A (en) | 1980-02-18 |
| JPS6218624B2 true JPS6218624B2 (https=) | 1987-04-23 |
Family
ID=14123966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9494178A Granted JPS5522444A (en) | 1978-08-03 | 1978-08-03 | Cutting blade for blanking dies |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5522444A (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2635973B2 (ja) * | 1987-08-03 | 1997-07-30 | 株式会社クボタ | 高硬度黒鉛晶出高クロム複合ロール |
| KR101417119B1 (ko) * | 2008-11-04 | 2014-07-08 | 현대자동차주식회사 | 가공소재에 가공경화층을 유도하기 위한 피어싱 방법 및 펀치 |
-
1978
- 1978-08-03 JP JP9494178A patent/JPS5522444A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5522444A (en) | 1980-02-18 |
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