JPS5736034A - 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
JPS5736034A
JPS5736034A JP11047980A JP11047980A JPS5736034A JP S5736034 A JPS5736034 A JP S5736034A JP 11047980 A JP11047980 A JP 11047980A JP 11047980 A JP11047980 A JP 11047980A JP S5736034 A JPS5736034 A JP S5736034A
Authority
JP
Japan
Prior art keywords
blank material
die
ring
circumference
tooth form
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
JP11047980A
Other languages
Japanese (ja)
Other versions
JPS6153140B2 (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 JP11047980A priority Critical patent/JPS5736034A/en
Publication of JPS5736034A publication Critical patent/JPS5736034A/en
Publication of JPS6153140B2 publication Critical patent/JPS6153140B2/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 precise tooth with high strength by merely applying a small force, by expanding a ring-shaped blank material being inserted into theinside circumference of teeth form of a die to the direction of its outside circumference with the aid of wedging- in action generated by the tapered surface of a punch. CONSTITUTION:A ring-shaped blank material 30 being prepared beforehand is inserted to the inside of a tooth form 19 of a die 18 and then, a guiding part 27 is intruded into the inside circumference of the blank material 30 by moving downward a punch 26. Through such operations, a conical surface of the guiding part 27 works as a wedge and externally expands the ring-shaped raw material 30 from its inside circumference so that its outside circumference is forcibly pessed onto the tooth form 19 of the die and pushed into the spaces of the toothe form 19. After the punch 26 is lowered to a predetermined position, a tooth form 29 provided on an outside circumference of the punch starts moving downward with the tooth form 19 of the die 18 meshed and presses downward the blank material being pushed into the spaces between teeth of the tooth form 19 of the die 18. Finally, the blank material 30 is forcebly pressed in the inside of the engraved spaces of the mold enclosed so that the spaces are filled with the blank material and the form of a ring gear can be perfectly constituted.
JP11047980A 1980-08-11 1980-08-11 Forging method to form tooth form on outside circumference of ring-shaped material Granted JPS5736034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11047980A JPS5736034A (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
JP11047980A JPS5736034A (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
JPS5736034A true JPS5736034A (en) 1982-02-26
JPS6153140B2 JPS6153140B2 (en) 1986-11-17

Family

ID=14536750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11047980A Granted JPS5736034A (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) JPS5736034A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6117336A (en) * 1984-06-05 1986-01-25 イスラエル国 Method of molding metallic ring and device used for said method
JPS61235033A (en) * 1985-04-10 1986-10-20 Goto Tanko Kk Production of gear wheel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6117336A (en) * 1984-06-05 1986-01-25 イスラエル国 Method of molding metallic ring and device used for said method
JPS61235033A (en) * 1985-04-10 1986-10-20 Goto Tanko Kk Production of gear wheel
JPH0356821B2 (en) * 1985-04-10 1991-08-29

Also Published As

Publication number Publication date
JPS6153140B2 (en) 1986-11-17

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