JPS6457939A - Lubrication method in cold forging - Google Patents
Lubrication method in cold forgingInfo
- Publication number
- JPS6457939A JPS6457939A JP21438787A JP21438787A JPS6457939A JP S6457939 A JPS6457939 A JP S6457939A JP 21438787 A JP21438787 A JP 21438787A JP 21438787 A JP21438787 A JP 21438787A JP S6457939 A JPS6457939 A JP S6457939A
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- lubrication
- oil
- forging blank
- cold forging
- 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 make lubrication efficient by pressurizing with the forging blank pushed from the cavity upper part the lubricating oil filled up in the cavity and also discharging it from the cavity lower end with maintaining a fixed pressure. CONSTITUTION:A lubrication oil O is filled up in the cavity 3 of a die device 1 and a forging blank W is pushed in from the upper part of the cavity 3. The lubrication oil O is pressed by the forging blank W and when the pressure of the lubrication oil O exceeds a specified value, a relief valve is opened and the oil O is discharged from a discharging path 7. With this method the lubrication effect is improved and the quality is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21438787A JPS6457939A (en) | 1987-08-28 | 1987-08-28 | Lubrication method in cold forging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21438787A JPS6457939A (en) | 1987-08-28 | 1987-08-28 | Lubrication method in cold forging |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6457939A true JPS6457939A (en) | 1989-03-06 |
Family
ID=16654946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21438787A Pending JPS6457939A (en) | 1987-08-28 | 1987-08-28 | Lubrication method in cold forging |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6457939A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011062750A (en) * | 2009-09-17 | 2011-03-31 | National Machinery Llc | Working set for cold forming machine and cold forming method |
US20110219849A1 (en) * | 2003-10-02 | 2011-09-15 | Nippon Steel Corporation | Metal plate material hot press molding apparatus and hot press molding method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59150639A (en) * | 1983-02-17 | 1984-08-28 | Mitsubishi Heavy Ind Ltd | Forging method of spiral parts |
-
1987
- 1987-08-28 JP JP21438787A patent/JPS6457939A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59150639A (en) * | 1983-02-17 | 1984-08-28 | Mitsubishi Heavy Ind Ltd | Forging method of spiral parts |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110219849A1 (en) * | 2003-10-02 | 2011-09-15 | Nippon Steel Corporation | Metal plate material hot press molding apparatus and hot press molding method |
US8555691B2 (en) * | 2003-10-02 | 2013-10-15 | Nippon Steel & Sumitomo Metal Corporation | Metal plate material hot press molding apparatus and hot press molding method |
JP2011062750A (en) * | 2009-09-17 | 2011-03-31 | National Machinery Llc | Working set for cold forming machine and cold forming method |
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