JPS574342A - Airtight piercing and forging method - Google Patents
Airtight piercing and forging methodInfo
- Publication number
- JPS574342A JPS574342A JP7682880A JP7682880A JPS574342A JP S574342 A JPS574342 A JP S574342A JP 7682880 A JP7682880 A JP 7682880A JP 7682880 A JP7682880 A JP 7682880A JP S574342 A JPS574342 A JP S574342A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- piercing
- airtight
- hole
- deburring
- 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 eliminate the need for deburring by piercing a material while it is kept airtight, by pressing a punch into a die which has a punch pressed-in hole communicating with a female die and is separable into pieces.
CONSTITUTION: A horizontal punch 7 is sandwiched in a recessed part 4 between two left and right dies 1, which are contained in an outer flask 5. Then, a heated materal 12 is inserted into a female die and a vertical punch 10 is pressed into the dies. An elbow having a vertical hole and a recessed part at the side part by being forged is pierced by being machined to make the horizontal hole and vertical hole communicate with each other. Thus, a pierced and forged body which eliminates the need for deburring is obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7682880A JPS574342A (en) | 1980-06-06 | 1980-06-06 | Airtight piercing and forging method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7682880A JPS574342A (en) | 1980-06-06 | 1980-06-06 | Airtight piercing and forging method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS574342A true JPS574342A (en) | 1982-01-09 |
Family
ID=13616534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7682880A Pending JPS574342A (en) | 1980-06-06 | 1980-06-06 | Airtight piercing and forging method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS574342A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5233592A (en) * | 1975-09-10 | 1977-03-14 | Hitachi Ltd | Ion concentration measuring apparatus |
-
1980
- 1980-06-06 JP JP7682880A patent/JPS574342A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5233592A (en) * | 1975-09-10 | 1977-03-14 | Hitachi Ltd | Ion concentration measuring apparatus |
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