JPS5877736A - Manufature of piston - Google Patents

Manufature of piston

Info

Publication number
JPS5877736A
JPS5877736A JP17649081A JP17649081A JPS5877736A JP S5877736 A JPS5877736 A JP S5877736A JP 17649081 A JP17649081 A JP 17649081A JP 17649081 A JP17649081 A JP 17649081A JP S5877736 A JPS5877736 A JP S5877736A
Authority
JP
Japan
Prior art keywords
piston
punch
forging
base material
extrusion
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
Application number
JP17649081A
Other languages
Japanese (ja)
Inventor
Yukihiko Uchida
内田　幸彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to JP17649081A priority Critical patent/JPS5877736A/en
Publication of JPS5877736A publication Critical patent/JPS5877736A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/18—Making machine elements pistons or plungers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PURPOSE:To improve productivity and to reduce cost by using an ingot material as a base material, and manufacturing a piston which has a boss part internally by forging or extrusion. CONSTITUTION:For manufacture of a piston used for an internal combustion engine, an air compressor, etc., an ingot material X as its base material is set between a punch P and a die D. The punch P has a recessed part for forming a boss part. Then, normal forging or extrusion is carried out to manufacture the piston which has the boss part internally.

Description

【発明の詳細な説明】 本発明は、内燃機関や空気圧縮機等に用いられるピスト
ンの製造方法に関し、母材としての塊材から、鍛造ま几
は押出し加工により、ピストンを製造することによＶ、
生産性を向上させ、コストの低減をはかることを目的と
したものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing pistons used in internal combustion engines, air compressors, etc. The pistons are manufactured by forging or extruding a lump material as a base material. V,
The purpose is to improve productivity and reduce costs.

従来、内燃機関や空気圧縮機等圧用いられるピストンは
、ダイキャスト加工などにより製造されている。本発明
は、前記ダイキャスト加工などの加工方法に替えて、鍛
造または押出し加工方法によりピストンを製造する方法
である。Conventionally, pistons used in internal combustion engines and air compressors have been manufactured by die-casting or the like. The present invention is a method of manufacturing a piston using a forging or extrusion method instead of the die-casting method or the like.

以下、本発明の夾施例を添付図面に基づいて説明する。Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.

第１図は、本発明を実施した加工順序を示し。FIG. 1 shows the processing sequence in which the present invention was implemented.

（４）図はポンチＰとダイスＤの間に塊材Ｘｔ−セット
した状態を示し、０３）図は、ポンチＰの下降に伴い塊
材Ｘが加工を受けている状態を示している。(4) The figure shows a state in which the block material Xt is set between the punch P and the die D, and the figure 03) shows a state in which the block material X is being processed as the punch P descends.

第２図は１本発明を実施する場合に用いられるポンチＰ
の形状を示す参考例で、囚図はポンチの正面図、■）図
はポンチの個面図金示す。Figure 2 shows a punch P used when carrying out the present invention.
This is a reference example showing the shape of the punch.

母材としての塊材ｘ＃ｉ、ポンチＰとダイスＤの間にセ
ットされ、通常の鍛造または押出し加工によりピストン
形状に成形される。The lump x#i as a base material is set between a punch P and a die D, and is formed into a piston shape by normal forging or extrusion.

上述のように塊材Ｘｔ鍛造または押出し加工することに
よりピストンを製造できるので、生産性を向上させられ
ると共にコストの低減をはがれる。As described above, the piston can be manufactured by forging or extruding the ingot Xt, thereby improving productivity and reducing costs.

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

第１図は、本発明を実施した加工順序を示す図で、（Ａ
）図は、加工前の状態を示し、（Ｂ１図は、加工状態を
示す。 第２図は、本発明を実施する場合に用いられるポンチの
形状の参考例を示し％囚図は、ポンチの正面図、＋８１
図は、ポンチの側面図を示す。 Ｐ：ポンチ　　Ｄ：ダイス　　Ｘ：塊材特許出願人　内
　１）幸　彦 第２図FIG. 1 is a diagram showing the processing order in which the present invention was implemented, and (A
) Figure shows the state before processing, (Figure B1 shows the processing state. Figure 2 shows a reference example of the shape of the punch used when carrying out the present invention. Front view, +81
The figure shows a side view of the punch. P: Punch D: Dice X: Lump patent applicant 1) Yukihiko Figure 2

Claims (2)

【特許請求の範囲】[Claims] （１）内燃機関、空気圧縮機等に用いられるピストンの
製造方法において、塊材を母材とし、鍛造または押出し
加工により、内部にボス部分を具備するピストンを製造
することを特徴とするピストンの製造方法。(1) A method for manufacturing a piston used in an internal combustion engine, an air compressor, etc., characterized in that the piston is manufactured from a block as a base material and has a boss portion inside by forging or extrusion processing. Production method. （２）ピストン製造時に、ボス部分を形成可能な凹部を
具備するポンチを用いてピストンを製造することを特徴
とする特許請求の範囲（］）項記載のピストンの製造方
法。(2) A method for manufacturing a piston according to claim 1, wherein the piston is manufactured using a punch having a recessed portion capable of forming a boss portion.
JP17649081A 1981-11-05 1981-11-05 Manufature of piston Pending JPS5877736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17649081A JPS5877736A (en) 1981-11-05 1981-11-05 Manufature of piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17649081A JPS5877736A (en) 1981-11-05 1981-11-05 Manufature of piston

Publications (1)

Publication Number Publication Date
JPS5877736A true JPS5877736A (en) 1983-05-11

Family

ID=16014574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17649081A Pending JPS5877736A (en) 1981-11-05 1981-11-05 Manufature of piston

Country Status (1)

Country Link
JP (1) JPS5877736A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60191654A (en) * 1984-03-12 1985-09-30 Izumi Jidosha Kogyo Kk Piston for internal-combustion engine and production thereof
WO2000045988A1 (en) * 1999-02-02 2000-08-10 Amcast Industrial Corporation A process for producing variable displacement compressor pistons having hollow piston bodies and integral actuator rods
EP1134412A3 (en) * 2000-03-15 2002-06-12 Kabushiki Kaisha Toyota Jidoshokki Method and apparatus for producing hollow piston for compressor by forging
EP1087135A3 (en) * 1999-09-21 2002-08-07 Kabushiki Kaisha Toyota Jidoshokki Non-axisymmetric hollow swash plate compressor piston

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60191654A (en) * 1984-03-12 1985-09-30 Izumi Jidosha Kogyo Kk Piston for internal-combustion engine and production thereof
JPH0547304B2 (en) * 1984-03-12 1993-07-16 Izumi Kogyo Co Ltd
WO2000045988A1 (en) * 1999-02-02 2000-08-10 Amcast Industrial Corporation A process for producing variable displacement compressor pistons having hollow piston bodies and integral actuator rods
US6266878B1 (en) 1999-02-02 2001-07-31 Amcast Industrial Corporation Process for producing variable displacement compressor pistons having hollow piston bodies and integral actuator rods
EP1087135A3 (en) * 1999-09-21 2002-08-07 Kabushiki Kaisha Toyota Jidoshokki Non-axisymmetric hollow swash plate compressor piston
EP1134412A3 (en) * 2000-03-15 2002-06-12 Kabushiki Kaisha Toyota Jidoshokki Method and apparatus for producing hollow piston for compressor by forging
US6530149B2 (en) 2000-03-15 2003-03-11 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method for producing hollow piston for compressor by forging

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