JPH0453616A - End mill - Google Patents

End mill

Info

Publication number
JPH0453616A
JPH0453616A JP16066190A JP16066190A JPH0453616A JP H0453616 A JPH0453616 A JP H0453616A JP 16066190 A JP16066190 A JP 16066190A JP 16066190 A JP16066190 A JP 16066190A JP H0453616 A JPH0453616 A JP H0453616A
Authority
JP
Japan
Prior art keywords
cutting edge
end mill
polygon
ridge
cutting
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
JP16066190A
Other languages
Japanese (ja)
Inventor
Kiyoshi Kishimoto
Shigeyasu Yoshitoshi
Ryosuke Okanishi
Hideaki Inoue
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.)
Moldino Tool Engineering Ltd
Original Assignee
Hitachi Tool Engineering 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 Hitachi Tool Engineering Ltd filed Critical Hitachi Tool Engineering Ltd
Priority to JP16066190A priority Critical patent/JPH0453616A/en
Publication of JPH0453616A publication Critical patent/JPH0453616A/en
Pending 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/20—Number of cutting edges
    • B23C2210/205—Number of cutting edges six
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/20—Number of cutting edges
    • B23C2210/207—Number of cutting edges eight

Abstract

PURPOSE: To secure an end mill suitable for finish-cutting of high hardness materials in addition to ease of manufacture by curving each of polygonal sides of the end mill, whose axial perpendicular section is formed into a polygon of more than a triangle, and a ridge, made by each of the apexes in the axial direction, forming a cutting edge being inscribed to a virtual cylinder, into a recess form.
CONSTITUTION: A cutting edge twisted by a ridge 12 being produced in the axial direction by each apex of a polygon of more than a triangle in an axial perpendicular section, for example, a regular hexagon, is formed in the peripheral surface of a tool body 11, and each side is curved into a recess or projection form. Then, a land, forming a circular form concentric with the center of the polygon or a flank slightly in the rotational direction, is installed in the cutting edge part that each ridge of the section polygons produces, and a sintered hard alloy that applied coating to a tool material is used. Thus, wear of the cutting edge and reduction in chipping both are lessened and, what is more, even in case of a high hardness workpiece, cutting is made possible at a feed rate of several times over the conventional end mill, thus an excellent finished surface can be secured.
COPYRIGHT: (C)1992,JPO&Japio
JP16066190A 1990-06-19 1990-06-19 End mill Pending JPH0453616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16066190A JPH0453616A (en) 1990-06-19 1990-06-19 End mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16066190A JPH0453616A (en) 1990-06-19 1990-06-19 End mill

Publications (1)

Publication Number Publication Date
JPH0453616A true JPH0453616A (en) 1992-02-21

Family

ID=15719761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16066190A Pending JPH0453616A (en) 1990-06-19 1990-06-19 End mill

Country Status (1)

Country Link
JP (1) JPH0453616A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6220797B1 (en) 1998-06-18 2001-04-24 Sumitomo Metal Minning Co. Surface treated steel cutting tool
JP2012236242A (en) * 2011-05-10 2012-12-06 Nisshin Kogu Kk End mill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6220797B1 (en) 1998-06-18 2001-04-24 Sumitomo Metal Minning Co. Surface treated steel cutting tool
JP2012236242A (en) * 2011-05-10 2012-12-06 Nisshin Kogu Kk End mill

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