JPH026802B2 - - Google Patents

Info

Publication number
JPH026802B2
JPH026802B2 JP61307508A JP30750886A JPH026802B2 JP H026802 B2 JPH026802 B2 JP H026802B2 JP 61307508 A JP61307508 A JP 61307508A JP 30750886 A JP30750886 A JP 30750886A JP H026802 B2 JPH026802 B2 JP H026802B2
Authority
JP
Japan
Prior art keywords
spiral
drill
groove
powder
sintered
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.)
Expired - Lifetime
Application number
JP61307508A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63277702A (ja
Inventor
Yoshinobu Kobayashi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP61307508A priority Critical patent/JPS63277702A/ja
Publication of JPS63277702A publication Critical patent/JPS63277702A/ja
Publication of JPH026802B2 publication Critical patent/JPH026802B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B21C23/147—Making drill blanks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
JP61307508A 1986-12-23 1986-12-23 ドリル素材の製法 Granted JPS63277702A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61307508A JPS63277702A (ja) 1986-12-23 1986-12-23 ドリル素材の製法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61307508A JPS63277702A (ja) 1986-12-23 1986-12-23 ドリル素材の製法

Publications (2)

Publication Number Publication Date
JPS63277702A JPS63277702A (ja) 1988-11-15
JPH026802B2 true JPH026802B2 (en, 2012) 1990-02-14

Family

ID=17969920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61307508A Granted JPS63277702A (ja) 1986-12-23 1986-12-23 ドリル素材の製法

Country Status (1)

Country Link
JP (1) JPS63277702A (en, 2012)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108262496A (zh) * 2016-12-31 2018-07-10 上海精韧激光科技有限公司 粉末冶金制成的切削坯体及其成型方法和用途
CN108262481A (zh) * 2016-12-31 2018-07-10 上海名古屋精密工具股份有限公司 粉末冶金制成的坯体及其成型方法和用途
CN108262482A (zh) * 2016-12-31 2018-07-10 上海精韧激光科技有限公司 硬质材料坯体及其制造方法和用途

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54159791A (en) * 1978-06-08 1979-12-17 Daijietsuto Kougiyou Kk Cemented carbide twist drill with refrigerant passage
JPS61227101A (ja) * 1985-03-29 1986-10-09 Mitsubishi Metal Corp ドリル用押し出し成型機

Also Published As

Publication number Publication date
JPS63277702A (ja) 1988-11-15

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