JPS54111188A - A ball-end mill - Google Patents

A ball-end mill

Info

Publication number
JPS54111188A
JPS54111188A JP1826778A JP1826778A JPS54111188A JP S54111188 A JPS54111188 A JP S54111188A JP 1826778 A JP1826778 A JP 1826778A JP 1826778 A JP1826778 A JP 1826778A JP S54111188 A JPS54111188 A JP S54111188A
Authority
JP
Japan
Prior art keywords
blade
center
lifetime
rotation
chips
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
JP1826778A
Other languages
Japanese (ja)
Other versions
JPS5918166B2 (en
Inventor
Osamu Tsujimura
Toshihiko Niimura
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 Metal Corp
Original Assignee
Mitsubishi Metal 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 Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP1826778A priority Critical patent/JPS5918166B2/en
Publication of JPS54111188A publication Critical patent/JPS54111188A/en
Publication of JPS5918166B2 publication Critical patent/JPS5918166B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B23C5/1009—Ball nose end mills
    • B23C5/1027—Ball nose end mills with one or more removable cutting inserts

Abstract

PURPOSE:To improve cutting performance and lifetime, by providing a plurality of detachable chips with convex scooping surface in such a way that the cutting area of a blade is made continuous. CONSTITUTION:The rear end of body proper 10 is grasped by the main shaft of a machine tool properly, and it is rotated and is subjected to cutting process. Slits are provided at places symmetrical with respect to axis S and in parallel to the radial direction in the region from nearly the center to the end part of body proper 10. Here, flat parts, 11a, 11b, which serve as scrap discharge grooves, are formed. A plurality of chips, 12a, 12b and 12e, are fastened here by means of fastening bolts in such a manner that they can be detached easily. The scooping surface of each chip is made a convex curved surface. The end part of the blade nearly coincides with the center of rotation so that the damage and abrasion of the blade in the neighborhood of the center of rotation are minimized and thus the lifetime of the tool is lengthened.
JP1826778A 1978-02-20 1978-02-20 ball end mill Expired JPS5918166B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1826778A JPS5918166B2 (en) 1978-02-20 1978-02-20 ball end mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1826778A JPS5918166B2 (en) 1978-02-20 1978-02-20 ball end mill

Publications (2)

Publication Number Publication Date
JPS54111188A true JPS54111188A (en) 1979-08-31
JPS5918166B2 JPS5918166B2 (en) 1984-04-25

Family

ID=11966878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1826778A Expired JPS5918166B2 (en) 1978-02-20 1978-02-20 ball end mill

Country Status (1)

Country Link
JP (1) JPS5918166B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939121U (en) * 1982-09-07 1984-03-13 ダイジヱット工業株式会社 Throw-away ball end mill
FR2541155A1 (en) * 1983-02-22 1984-08-24 Ingersoll Mach & Tool Co 2 SIZE STRAWBERRY WITH HEMISPHERIC WORKING HEAD FORMED ON THE ROD SHAPED HOLDER
JPS6022215U (en) * 1983-07-25 1985-02-15 三菱マテリアル株式会社 Throw-away end mill
US4566827A (en) * 1984-11-30 1986-01-28 Ingersoll Cutting Tool Company Ballnose end mill and insert therefor
US4618296A (en) * 1983-09-14 1986-10-21 Gte Valeron Corporation Cutting tool and insert therefor
US4927303A (en) * 1988-09-27 1990-05-22 Mitsubishi Metal Corporation Ball end mill
US5692860A (en) * 1995-06-06 1997-12-02 Ingersoll Cutting Tool On-edge end milling cutter and insert
JP2000516153A (en) * 1996-08-22 2000-12-05 イスカー・リミテツド Insertion tool for cutting

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939121U (en) * 1982-09-07 1984-03-13 ダイジヱット工業株式会社 Throw-away ball end mill
JPS6119860Y2 (en) * 1982-09-07 1986-06-14
FR2541155A1 (en) * 1983-02-22 1984-08-24 Ingersoll Mach & Tool Co 2 SIZE STRAWBERRY WITH HEMISPHERIC WORKING HEAD FORMED ON THE ROD SHAPED HOLDER
JPS6022215U (en) * 1983-07-25 1985-02-15 三菱マテリアル株式会社 Throw-away end mill
US4618296A (en) * 1983-09-14 1986-10-21 Gte Valeron Corporation Cutting tool and insert therefor
US4566827A (en) * 1984-11-30 1986-01-28 Ingersoll Cutting Tool Company Ballnose end mill and insert therefor
US4927303A (en) * 1988-09-27 1990-05-22 Mitsubishi Metal Corporation Ball end mill
US5692860A (en) * 1995-06-06 1997-12-02 Ingersoll Cutting Tool On-edge end milling cutter and insert
JP2000516153A (en) * 1996-08-22 2000-12-05 イスカー・リミテツド Insertion tool for cutting

Also Published As

Publication number Publication date
JPS5918166B2 (en) 1984-04-25

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