JPS5662627A - Die for pressing - Google Patents
Die for pressingInfo
- Publication number
- JPS5662627A JPS5662627A JP13730479A JP13730479A JPS5662627A JP S5662627 A JPS5662627 A JP S5662627A JP 13730479 A JP13730479 A JP 13730479A JP 13730479 A JP13730479 A JP 13730479A JP S5662627 A JPS5662627 A JP S5662627A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- blank material
- die
- forming surface
- star marks
- 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
Abstract
PURPOSE: To manufacture dies for pressing inexpensively and prevent the formation of star marks in pressed products by forming multiple round holes of a specific inside diameter or under to at least part of the forming surface of the dies.
CONSTITUTION: If a punch 4 is lowered toward a die 3 after a blank material 6 is inserted between the punch 4 and the die 3, the punch 4 and the die 3 act cooperatively to plastically deform the blank material 7, by which the material is molded. At this deforming of the blank material 6, the blank material 6 slips on the forming surface 5 of the punch 4; therefore, even if there are dust, iron powder, etc. that become the cause for star marks between the blank material 6 and the punch 4, these dust, etc. are dragged and removed by the slip of the material 6 and are all forced into the round holes 7 on the forming surface 5 which have been drilled in multiplicity to ≤6mm inside diameter. Because of this, no star marks are produced on the pressed product.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13730479A JPS5662627A (en) | 1979-10-24 | 1979-10-24 | Die for pressing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13730479A JPS5662627A (en) | 1979-10-24 | 1979-10-24 | Die for pressing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5662627A true JPS5662627A (en) | 1981-05-28 |
Family
ID=15195551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13730479A Pending JPS5662627A (en) | 1979-10-24 | 1979-10-24 | Die for pressing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5662627A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007136474A (en) * | 2005-11-15 | 2007-06-07 | Nippon Steel Corp | Hot forming die for high strength steel sheet and method for hot forming high strength steel sheet |
JP2010240688A (en) * | 2009-04-06 | 2010-10-28 | Mitsubishi Motors Corp | Press device |
CN103223441A (en) * | 2012-01-25 | 2013-07-31 | 本田技研工业株式会社 | A stamping mould and a deep drawing product |
-
1979
- 1979-10-24 JP JP13730479A patent/JPS5662627A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007136474A (en) * | 2005-11-15 | 2007-06-07 | Nippon Steel Corp | Hot forming die for high strength steel sheet and method for hot forming high strength steel sheet |
JP4616756B2 (en) * | 2005-11-15 | 2011-01-19 | 新日本製鐵株式会社 | Hot forming mold for high strength steel sheet and hot forming method for high strength steel sheet |
JP2010240688A (en) * | 2009-04-06 | 2010-10-28 | Mitsubishi Motors Corp | Press device |
CN103223441A (en) * | 2012-01-25 | 2013-07-31 | 本田技研工业株式会社 | A stamping mould and a deep drawing product |
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