JPS55136535A - Roughening method in die forging - Google Patents
Roughening method in die forgingInfo
- Publication number
- JPS55136535A JPS55136535A JP4326779A JP4326779A JPS55136535A JP S55136535 A JPS55136535 A JP S55136535A JP 4326779 A JP4326779 A JP 4326779A JP 4326779 A JP4326779 A JP 4326779A JP S55136535 A JPS55136535 A JP S55136535A
- Authority
- JP
- Japan
- Prior art keywords
- blank
- parts
- compression
- protruding parts
- die
- 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
- Forging (AREA)
Abstract
PURPOSE: To obtain rough blanks of proper volume distribution at high precision, by forming plural protruding parts and recess parts on the die sinking faces of top part and bottom part, and absorbing the elongation of wall thickness of the blank compressed by the protruding parts in the recess parts.
CONSTITUTION: Plural protruding parts 3 and one long protruding part 3' are formed in the axial direction of shade sinking face face 2A of a top die 2. Similarly, protruding parts 5, 5' are opposedly formed on the die sinking face 4A of a bottom die 4. By using these protruding parts, recess parts are formed in the die sinking faces 2A, 4A, and compression cavities 6, 6' and bulge-out cavity 7 of a blank S are formed. Compression is applied to the blank S of square section or the like which rotates in the compression cavity 6, and the elongation of the wall thickness of the blank S due to compression is absorbed in the bulge-out cavity 7 formed by the recess parts. When this operation is repeated until the cavity 7 is filled up with the blank wall, a rough blank of a proper volume distribution having a part of which sectional area is larger than the blank may be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4326779A JPS55136535A (en) | 1979-04-10 | 1979-04-10 | Roughening method in die forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4326779A JPS55136535A (en) | 1979-04-10 | 1979-04-10 | Roughening method in die forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55136535A true JPS55136535A (en) | 1980-10-24 |
Family
ID=12659055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4326779A Pending JPS55136535A (en) | 1979-04-10 | 1979-04-10 | Roughening method in die forging |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55136535A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS603936A (en) * | 1983-06-21 | 1985-01-10 | Honda Motor Co Ltd | Method and device for forming blank material for forging |
| JPS6021451U (en) * | 1983-07-20 | 1985-02-14 | 西野 誠和 | Hanging equipment for tubed items |
| WO2016163307A1 (en) * | 2015-04-06 | 2016-10-13 | 日立金属株式会社 | Hot forging die and hot forging method |
| WO2016163308A1 (en) * | 2015-04-06 | 2016-10-13 | 日立金属株式会社 | Hot forging die and hot forging method |
-
1979
- 1979-04-10 JP JP4326779A patent/JPS55136535A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS603936A (en) * | 1983-06-21 | 1985-01-10 | Honda Motor Co Ltd | Method and device for forming blank material for forging |
| JPS6021451U (en) * | 1983-07-20 | 1985-02-14 | 西野 誠和 | Hanging equipment for tubed items |
| WO2016163307A1 (en) * | 2015-04-06 | 2016-10-13 | 日立金属株式会社 | Hot forging die and hot forging method |
| WO2016163308A1 (en) * | 2015-04-06 | 2016-10-13 | 日立金属株式会社 | Hot forging die and hot forging method |
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