JPS5736035A - Forging method to form tooth form on outside circumference of ring-shaped material - Google Patents

Forging method to form tooth form on outside circumference of ring-shaped material

Info

Publication number
JPS5736035A
JPS5736035A JP11048080A JP11048080A JPS5736035A JP S5736035 A JPS5736035 A JP S5736035A JP 11048080 A JP11048080 A JP 11048080A JP 11048080 A JP11048080 A JP 11048080A JP S5736035 A JPS5736035 A JP S5736035A
Authority
JP
Japan
Prior art keywords
blank material
tooth form
punch
tooth
spaces
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
JP11048080A
Other languages
Japanese (ja)
Other versions
JPS6153141B2 (en
Inventor
Nagao Suzuki
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.)
Musashi Seimitsu Industry Co Ltd
Original Assignee
Musashi Seimitsu Industry Co Ltd
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 Musashi Seimitsu Industry Co Ltd filed Critical Musashi Seimitsu Industry Co Ltd
Priority to JP11048080A priority Critical patent/JPS5736035A/en
Publication of JPS5736035A publication Critical patent/JPS5736035A/en
Publication of JPS6153141B2 publication Critical patent/JPS6153141B2/ja
Granted 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
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/30—Making machine elements wheels; discs with gear-teeth

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

PURPOSE:To obtain a form of tooth with high precision and high strength without causing any fin by applying a small force for their forming, by conducting a preliminary teeth-forming operation by the tapered part of a tooth form and successive tooth-finishing operation by its straight part. CONSTITUTION:A blank material 30 with the inside circumference restrained by a punch guiding part 27, is forcibly moved downward along the tapered part 42 of a tooth form so that the outside circumference of the blank material is pushed into spaces of the tooth form. And a part of the blank material 30 not fully intruded into spaces of the tooth form can be perfectly finished at the following straight part 43 of the tooth form. Namely, as soon as a punch 26 is lowered up to a predetermined position, the upper and lower parts of the blank material 30 become enclosed by the end face 28 at a shoulder of the punch 26 and the engraved bottom surface 16 of a knockout ring 15 and further its inside and outside circumferences become enclosed too by the outside circumferential surface of the guiding part 27 of the punch 26 and the surfaces of the tooth form 19 of the die 18. Thus, the blank material 30 is forcibly puched and pressed by the terminal end face 28 of the punch and engraved spaces of the mold is filled with the blank material 30 so that it can be perfectly formed to have the form of a ring gear.
JP11048080A 1980-08-11 1980-08-11 Forging method to form tooth form on outside circumference of ring-shaped material Granted JPS5736035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11048080A JPS5736035A (en) 1980-08-11 1980-08-11 Forging method to form tooth form on outside circumference of ring-shaped material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11048080A JPS5736035A (en) 1980-08-11 1980-08-11 Forging method to form tooth form on outside circumference of ring-shaped material

Publications (2)

Publication Number Publication Date
JPS5736035A true JPS5736035A (en) 1982-02-26
JPS6153141B2 JPS6153141B2 (en) 1986-11-17

Family

ID=14536778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11048080A Granted JPS5736035A (en) 1980-08-11 1980-08-11 Forging method to form tooth form on outside circumference of ring-shaped material

Country Status (1)

Country Link
JP (1) JPS5736035A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63256237A (en) * 1987-04-10 1988-10-24 Mitsubishi Metal Corp Forged bevel gear provided with tooth tip chamfering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63256237A (en) * 1987-04-10 1988-10-24 Mitsubishi Metal Corp Forged bevel gear provided with tooth tip chamfering

Also Published As

Publication number Publication date
JPS6153141B2 (en) 1986-11-17

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