JPH02118634U - - Google Patents
Info
- Publication number
- JPH02118634U JPH02118634U JP2792389U JP2792389U JPH02118634U JP H02118634 U JPH02118634 U JP H02118634U JP 2792389 U JP2792389 U JP 2792389U JP 2792389 U JP2792389 U JP 2792389U JP H02118634 U JPH02118634 U JP H02118634U
- Authority
- JP
- Japan
- Prior art keywords
- die
- circumferential side
- punch
- closed forging
- impression part
- 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.)
- Granted
Links
- 238000005242 forging Methods 0.000 claims description 6
Landscapes
- Forging (AREA)
Description
第1〜3図は本考案の一実施例としての閉塞鍛
造型装置を示すもので、第1図はその側断面図、
第2図はその部分拡大側断面図、第3図は鍛造時
における第1図の部側断面図であり、第4,5
図は従来の閉塞鍛造型装置を示すもので、第4図
はその側断面図、第5図は鍛造時における第4図
の部側断面図である。
1……上型、2……下型、1a,2a……貫通
孔、3,4……パンチ、3a,4a……先端面、
3b,4b……周側面、5……材料、6,7……
段差部、8……インプレツシヨン部、9……クリ
アランス。
1 to 3 show a closed forging die device as an embodiment of the present invention, and FIG. 1 is a side sectional view thereof;
Fig. 2 is a partially enlarged side sectional view, Fig. 3 is a side sectional view of Fig. 1 at the time of forging;
The figures show a conventional closed forging die device, FIG. 4 is a side sectional view thereof, and FIG. 5 is a side sectional view of the part shown in FIG. 4 during forging. 1... Upper die, 2... Lower die, 1a, 2a... Through hole, 3, 4... Punch, 3a, 4a... Tip surface,
3b, 4b... Circumferential side, 5... Material, 6, 7...
Step part, 8...Impression part, 9...Clearance.
Claims (1)
下型と、これらの上型および下型の相互間に形成
されたインプレツシヨン部と、同インプレツシヨ
ン部内に圧入しうる円形断面形パンチとをそなえ
、同パンチが、その往復動方向に平行な周側面と
同周側面に対して直角な先端面とをそなえた棒体
から形成されるとともに、上記周側面と上記先端
面とが交叉する稜線部に、微少寸法の深さと幅と
をもつ段差部がその全周に沿つて穿設されて構成
されたことを特徴とする、閉塞鍛造型装置。 A die device for closed forging includes an upper die and a lower die, an impression part formed between the upper die and the lower die, and a circular cross-sectional punch that can be press-fitted into the impression part. The punch is formed from a rod having a circumferential side surface parallel to the reciprocating direction and a tip surface perpendicular to the circumferential side surface, and the circumferential side surface and the tip surface intersect. A closed forging die device characterized in that a step portion having minute depth and width is bored along the entire circumference of the ridge line.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989027923U JPH0715645Y2 (en) | 1989-03-10 | 1989-03-10 | Closed forging machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989027923U JPH0715645Y2 (en) | 1989-03-10 | 1989-03-10 | Closed forging machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02118634U true JPH02118634U (en) | 1990-09-25 |
JPH0715645Y2 JPH0715645Y2 (en) | 1995-04-12 |
Family
ID=31250845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1989027923U Expired - Lifetime JPH0715645Y2 (en) | 1989-03-10 | 1989-03-10 | Closed forging machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0715645Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111922275A (en) * | 2020-06-12 | 2020-11-13 | 中煤北京煤矿机械有限责任公司 | Die for machining middle cylinder piston head forging |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS613627A (en) * | 1984-06-15 | 1986-01-09 | Kobe Steel Ltd | Manufacture of automobile wheel |
JPS6277143A (en) * | 1985-09-30 | 1987-04-09 | Nissan Motor Co Ltd | Forging method |
JPS6320137A (en) * | 1986-07-14 | 1988-01-27 | Aida Eng Ltd | Forging method for holed parts having shaft part |
-
1989
- 1989-03-10 JP JP1989027923U patent/JPH0715645Y2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS613627A (en) * | 1984-06-15 | 1986-01-09 | Kobe Steel Ltd | Manufacture of automobile wheel |
JPS6277143A (en) * | 1985-09-30 | 1987-04-09 | Nissan Motor Co Ltd | Forging method |
JPS6320137A (en) * | 1986-07-14 | 1988-01-27 | Aida Eng Ltd | Forging method for holed parts having shaft part |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111922275A (en) * | 2020-06-12 | 2020-11-13 | 中煤北京煤矿机械有限责任公司 | Die for machining middle cylinder piston head forging |
Also Published As
Publication number | Publication date |
---|---|
JPH0715645Y2 (en) | 1995-04-12 |