JPS555024A - Method of manufacturing rotary magnetic field pole piece - Google Patents

Method of manufacturing rotary magnetic field pole piece

Info

Publication number
JPS555024A
JPS555024A JP7618178A JP7618178A JPS555024A JP S555024 A JPS555024 A JP S555024A JP 7618178 A JP7618178 A JP 7618178A JP 7618178 A JP7618178 A JP 7618178A JP S555024 A JPS555024 A JP S555024A
Authority
JP
Japan
Prior art keywords
axial hole
pawl
forging
pole piece
extruded
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
JP7618178A
Other languages
Japanese (ja)
Inventor
Makoto Harada
Kazuhide Yamamoto
Hideo Imori
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7618178A priority Critical patent/JPS555024A/en
Publication of JPS555024A publication Critical patent/JPS555024A/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
    • B21K1/28—Making machine elements wheels; discs

Abstract

PURPOSE: To readily press the axial hole of a pole piece according to a method of forging it in resource-saving manner by forging cylindrical slag into pawl piece and bearing portion, pressing its axial hole, and simultaneously bending the pawl piece.
CONSTITUTION: a lower axial hole 104a is forwardly extruded at a cylinderical slag 200, and a flat portion 300 is upset thereat with the hole 104a retained as it is. After the flat portion 300 is further laterally extruded to form the base 101 of predetermined thickness and a pawl piece 103a around the base 101, the axial hole is pressed to form an axial hole 104 and the peripheral pawl portion 103a is bent axially to form the pawl piece through shaping process. Thus, the axial hole 104 can be simply extruded to thereby utilize a method of forging it in resource-saving manner.
COPYRIGHT: (C)1980,JPO&Japio
JP7618178A 1978-06-22 1978-06-22 Method of manufacturing rotary magnetic field pole piece Pending JPS555024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7618178A JPS555024A (en) 1978-06-22 1978-06-22 Method of manufacturing rotary magnetic field pole piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7618178A JPS555024A (en) 1978-06-22 1978-06-22 Method of manufacturing rotary magnetic field pole piece

Publications (1)

Publication Number Publication Date
JPS555024A true JPS555024A (en) 1980-01-14

Family

ID=13597934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7618178A Pending JPS555024A (en) 1978-06-22 1978-06-22 Method of manufacturing rotary magnetic field pole piece

Country Status (1)

Country Link
JP (1) JPS555024A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459815A (en) * 1981-04-07 1984-07-17 Mitsubishi Denki Kabushiki Kaisha Air conditioner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54109102A (en) * 1978-02-16 1979-08-27 Aida Eng Ltd Method of producing pole piece for generator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54109102A (en) * 1978-02-16 1979-08-27 Aida Eng Ltd Method of producing pole piece for generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459815A (en) * 1981-04-07 1984-07-17 Mitsubishi Denki Kabushiki Kaisha Air conditioner

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