JPH02148721U - - Google Patents
Info
- Publication number
- JPH02148721U JPH02148721U JP5834989U JP5834989U JPH02148721U JP H02148721 U JPH02148721 U JP H02148721U JP 5834989 U JP5834989 U JP 5834989U JP 5834989 U JP5834989 U JP 5834989U JP H02148721 U JPH02148721 U JP H02148721U
- Authority
- JP
- Japan
- Prior art keywords
- peripheral edge
- workpiece
- sheet metal
- punch
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000004080 punching Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- 238000005111 flow chemistry technique Methods 0.000 claims 1
Landscapes
- Punching Or Piercing (AREA)
Description
第１図〜第３図は本考案の一実施例である板金
打抜き型を示し、第１図はワークを打抜き成形す
る前の断面図、第２図はワークを打抜き成形した
後の断面図、第３図は第２図の一部分の拡大断面
図、第４図は前記板金打抜き型によつて得られる
ワークの断面図、第５図は従来の板金打抜き型に
よつて得られるワークの断面図である。
１……ダイス、２……パンチ、３……ワーク、
１１……内周切刃部、１３……切刃周縁部、１４
……ワーク受け突部、２１……外周切刃部、２３
……外周端縁部、２４……ワーク加圧部、３２…
…打抜き穴、３３……穴周縁部。
1 to 3 show a sheet metal punching die that is an embodiment of the present invention, FIG. 1 is a sectional view before punching and forming a workpiece, and FIG. 2 is a sectional view after punching and forming a workpiece. FIG. 3 is an enlarged sectional view of a part of FIG. 2, FIG. 4 is a sectional view of a workpiece obtained by the sheet metal punching die, and FIG. 5 is a sectional view of a workpiece obtained by the conventional sheet metal punching die. It is. 1...Dice, 2...Punch, 3...Work,
11... Inner peripheral cutting edge part, 13... Cutting edge peripheral part, 14
...Workpiece receiving protrusion, 21...Outer cutting edge part, 23
...Outer peripheral edge, 24... Workpiece pressure section, 32...
...Punching hole, 33...hole periphery.
Claims (1)
を形成するための板金打抜き型であつて、 前記ダイスに、内周切刃部から外周方向へ向か
う所定幅の切刃周縁部を残して、段差を以て隆起
するワーク受け突部が設けられている一方、 前記パンチに、外周切刃部から基部方向へ向か
う所定幅の外周端縁部を残して、基部方向へ向か
つてテーパー状に拡大し、ワークに形成される打
抜き穴の穴周縁部を前記切刃周縁部に押付けて厚
肉に塑性流動加工するためのワーク加圧部が設け
られていることを特徴とする板金打抜き型。[Claims for Utility Model Registration] A sheet metal punching die for forming a punched hole in a workpiece, comprising a die and a punch, the die having a cutting edge of a predetermined width extending from an inner cutting edge toward an outer circumference. The punch is provided with a workpiece receiving protrusion that protrudes with a step while leaving a peripheral edge portion, while the punch is provided with an outer peripheral edge portion of a predetermined width extending from the outer peripheral cutting edge portion toward the base portion, and extending from the outer peripheral edge portion toward the base portion. A sheet metal sheet metal that is expanded into a tapered shape and is provided with a workpiece pressurizing section for pressing the peripheral edge of a punched hole formed in the workpiece against the peripheral edge of the cutting blade to perform plastic flow processing into a thick wall. Punching die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5834989U JPH02148721U (en) | 1989-05-19 | 1989-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5834989U JPH02148721U (en) | 1989-05-19 | 1989-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02148721U true JPH02148721U (en) | 1990-12-18 |
Family
ID=31583879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5834989U Pending JPH02148721U (en) | 1989-05-19 | 1989-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02148721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003094121A (en) * | 2001-09-25 | 2003-04-02 | Toyo Kohan Co Ltd | Blanking punch and die, and blanking method therewith |
-
1989
- 1989-05-19 JP JP5834989U patent/JPH02148721U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003094121A (en) * | 2001-09-25 | 2003-04-02 | Toyo Kohan Co Ltd | Blanking punch and die, and blanking method therewith |
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