JPH03120937U - - Google Patents
Info
- Publication number
- JPH03120937U JPH03120937U JP2958390U JP2958390U JPH03120937U JP H03120937 U JPH03120937 U JP H03120937U JP 2958390 U JP2958390 U JP 2958390U JP 2958390 U JP2958390 U JP 2958390U JP H03120937 U JPH03120937 U JP H03120937U
- Authority
- JP
- Japan
- Prior art keywords
- die
- tooth
- mandrel
- tooth forming
- 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
- 238000005242 forging Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Forging (AREA)
Description
第１図はこの考案の一実施例になる鍛造用金型
の断面図、第２図は第１図円内の拡大図である
。
１……ダイ、１ａ……内孔、１ｂ……逃し部、
４……パンチ、６……マンドレル、６ａ……歯形
成形部、６ｂ……ランド部、６ｃ……逃し部、７
……ワーク。
FIG. 1 is a sectional view of a forging die according to an embodiment of this invention, and FIG. 2 is an enlarged view of the circle in FIG. 1. 1... Die, 1a... Inner hole, 1b... Relief part,
4... Punch, 6... Mandrel, 6a... Tooth forming part, 6b... Land part, 6c... Relief part, 7
……work.
Claims (1)
面に歯形成形部６ａが突設されたマンドレル６を
設け、またこれらダイ１とマンドレル６の間にワ
ーク７を加圧するパンチ４を上下動自在に設ける
と共に、上記歯形成形部６ａのランド部６ｂより
下側に、歯先及び歯底部分を切欠することにより
逃し部６ｃを形成してなる鍛造用金型。 (2) ダイ１の内周面にも、歯形成形部６ａのラ
ンド部６ｂより下側となるよう逃し部１ｂを形成
してなる請求項１記載の鍛造用金型。[Claims for Utility Model Registration] (1) A mandrel 6 having a tooth forming part 6a protruding from the outer peripheral surface is provided at the center of the die 1 having an inner hole 1a, and between the die 1 and the mandrel 6. For forging, a punch 4 for pressurizing the workpiece 7 is provided so as to be movable up and down, and a relief portion 6c is formed by notching the tooth tip and tooth bottom portion below the land portion 6b of the tooth forming portion 6a. Mold. (2) The forging die according to claim 1, wherein a relief portion 1b is also formed on the inner circumferential surface of the die 1 so as to be located below the land portion 6b of the tooth forming portion 6a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2958390U JPH03120937U (en) | 1990-03-26 | 1990-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2958390U JPH03120937U (en) | 1990-03-26 | 1990-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03120937U true JPH03120937U (en) | 1991-12-11 |
Family
ID=31532336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2958390U Pending JPH03120937U (en) | 1990-03-26 | 1990-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03120937U (en) |
-
1990
- 1990-03-26 JP JP2958390U patent/JPH03120937U/ja active Pending