JPS57178613A - Broach - Google Patents

Broach

Info

Publication number
JPS57178613A
JPS57178613A JP6027581A JP6027581A JPS57178613A JP S57178613 A JPS57178613 A JP S57178613A JP 6027581 A JP6027581 A JP 6027581A JP 6027581 A JP6027581 A JP 6027581A JP S57178613 A JPS57178613 A JP S57178613A
Authority
JP
Japan
Prior art keywords
cutting
guide
broach
tooth
coarse
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
JP6027581A
Other languages
Japanese (ja)
Other versions
JPH0117811B2 (en
Inventor
Naoyuki Yoshimoto
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP6027581A priority Critical patent/JPS57178613A/en
Publication of JPS57178613A publication Critical patent/JPS57178613A/en
Publication of JPH0117811B2 publication Critical patent/JPH0117811B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D43/00—Broaching tools
    • B23D43/02—Broaching tools for cutting by rectilinear movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)

Abstract

PURPOSE:To eliminate eccentricity of a machine hole, by preventing a broach from bending due to cutting work, that is, by providing guides, guided from the outside, respectively to two-staged coarse teeth of the pull broach for drilling a hole. CONSTITUTION:The first coarse tooth 2 is formed with cutting edges 5 and guides 6 respectively in three places circumferentially in an equal space, to perform cutting of the first machined part, while the second coarse tooth 3 is alternately arranged with cutting edges 7 and guides 8, to perform cutting of the second machined part 11, and a finishing tooth 4 performs cutting of the prescribed finishing allowance 12. In this case, at cutting of the first coarse tooth 2, only portions of the circumferential cutting edges 5 perform cutting and the rest of the guide 6 is guided by a broach guide 13, while at cutting of the second coarse tooth 3, the guide 13 is retracted, and the guide 8 is guided by the internally cut diameter of a work.
JP6027581A 1981-04-21 1981-04-21 Broach Granted JPS57178613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6027581A JPS57178613A (en) 1981-04-21 1981-04-21 Broach

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6027581A JPS57178613A (en) 1981-04-21 1981-04-21 Broach

Publications (2)

Publication Number Publication Date
JPS57178613A true JPS57178613A (en) 1982-11-02
JPH0117811B2 JPH0117811B2 (en) 1989-04-03

Family

ID=13137420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6027581A Granted JPS57178613A (en) 1981-04-21 1981-04-21 Broach

Country Status (1)

Country Link
JP (1) JPS57178613A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015188942A (en) * 2014-03-27 2015-11-02 三菱マテリアル株式会社 Broach

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015188942A (en) * 2014-03-27 2015-11-02 三菱マテリアル株式会社 Broach

Also Published As

Publication number Publication date
JPH0117811B2 (en) 1989-04-03

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