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
Application number
JP2792389U
Other languages
Japanese (ja)
Other versions
JPH0715645Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989027923U priority Critical patent/JPH0715645Y2/en
Publication of JPH02118634U publication Critical patent/JPH02118634U/ja
Application granted granted Critical
Publication of JPH0715645Y2 publication Critical patent/JPH0715645Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Forging (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 閉塞鍛造のための型装置において、上型および
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.
JP1989027923U 1989-03-10 1989-03-10 Closed forging machine Expired - Lifetime JPH0715645Y2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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