JPS5531536A - Twist drill - Google Patents

Twist drill

Info

Publication number
JPS5531536A
JPS5531536A JP10221878A JP10221878A JPS5531536A JP S5531536 A JPS5531536 A JP S5531536A JP 10221878 A JP10221878 A JP 10221878A JP 10221878 A JP10221878 A JP 10221878A JP S5531536 A JPS5531536 A JP S5531536A
Authority
JP
Japan
Prior art keywords
growing
scraps
edge
rake surface
existing
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
JP10221878A
Other languages
Japanese (ja)
Other versions
JPS6141681B2 (en
Inventor
Toshiaki Hosoi
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 JP10221878A priority Critical patent/JPS5531536A/en
Publication of JPS5531536A publication Critical patent/JPS5531536A/en
Publication of JPS6141681B2 publication Critical patent/JPS6141681B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To entirely prevent the inner wall of a machined bore from scratch, etc. by wear at the edge, chipping, growing scraps existing at the constituted edge in such a way that cutting is done with use of a constituted edge, and growing scraps existing at the constituted edge are gradually expelled outward through the third rake surface.
CONSTITUTION: Provision of the third rake surface 8 ensuing after the peripheral extremity of the first rake surface 6 at the part where the second rake surface 7 intersects with the peripheral side 9 facilitates to form a passage for growing scraps 11' existing at the constituted edge 11 which have arrived at the peripheral extremity by sideslipping over the first rake surface 6, the adhered direction is changed to main chips 12, and these growing scraps 11' are expelled out the same as the main chips 12. This serves for preventing the bored inner wall from scratching by impalement of growing scraps existing at the constituted edge 11, and for obtaining specular machining surface.
COPYRIGHT: (C)1980,JPO&Japio
JP10221878A 1978-08-21 1978-08-21 Twist drill Granted JPS5531536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10221878A JPS5531536A (en) 1978-08-21 1978-08-21 Twist drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10221878A JPS5531536A (en) 1978-08-21 1978-08-21 Twist drill

Publications (2)

Publication Number Publication Date
JPS5531536A true JPS5531536A (en) 1980-03-05
JPS6141681B2 JPS6141681B2 (en) 1986-09-17

Family

ID=14321517

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10221878A Granted JPS5531536A (en) 1978-08-21 1978-08-21 Twist drill

Country Status (1)

Country Link
JP (1) JPS5531536A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59161208A (en) * 1983-03-03 1984-09-12 Daijietsuto Kogyo Kk Rolling cutter
US4605347A (en) * 1982-12-27 1986-08-12 Lockheed Missiles & Space Company, Inc. High speed drill reamer
US5609447A (en) * 1993-11-15 1997-03-11 Rogers Tool Works, Inc. Surface decarburization of a drill bit
JP2011513083A (en) * 2008-03-10 2011-04-28 ケンナメタル インコーポレイテッド Cutting tool with chisel edge
CN102601438A (en) * 2012-04-09 2012-07-25 合肥波林新材料有限公司 Two-edge special end milling cutter for through groove
US20180043441A1 (en) * 2015-03-30 2018-02-15 Mitsubishi Hitachi Tool Engineering, Ltd. Drill
CN114799286A (en) * 2021-01-27 2022-07-29 株式会社泰珂洛 Drill bit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605347A (en) * 1982-12-27 1986-08-12 Lockheed Missiles & Space Company, Inc. High speed drill reamer
JPS59161208A (en) * 1983-03-03 1984-09-12 Daijietsuto Kogyo Kk Rolling cutter
JPH0313004B2 (en) * 1983-03-03 1991-02-21 Dijet Ind Co Ltd
US5609447A (en) * 1993-11-15 1997-03-11 Rogers Tool Works, Inc. Surface decarburization of a drill bit
JP2011513083A (en) * 2008-03-10 2011-04-28 ケンナメタル インコーポレイテッド Cutting tool with chisel edge
CN102601438A (en) * 2012-04-09 2012-07-25 合肥波林新材料有限公司 Two-edge special end milling cutter for through groove
US20180043441A1 (en) * 2015-03-30 2018-02-15 Mitsubishi Hitachi Tool Engineering, Ltd. Drill
US10279398B2 (en) * 2015-03-30 2019-05-07 Mitsubishi Hitachi Tool Engineering, Ltd. Drill
CN114799286A (en) * 2021-01-27 2022-07-29 株式会社泰珂洛 Drill bit
EP4035813A1 (en) * 2021-01-27 2022-08-03 Tungaloy Corporation Drill
CN114799286B (en) * 2021-01-27 2024-01-30 株式会社泰珂洛 Drill bit

Also Published As

Publication number Publication date
JPS6141681B2 (en) 1986-09-17

Similar Documents

Publication Publication Date Title
JPS5796710A (en) Core drill
BE898975A (en) BLADE TOOL AND BLADES FOR THIS TOOL
DE69409365T2 (en) CUTTING INSERT WITH SPIRAL SHAPED SURFACE
CA2146662A1 (en) High z sialon and cutting tools made therefrom and method of using
ES263050U (en) Dental reducing tool.
JPS5531536A (en) Twist drill
IT9044819A0 (en) TOOL WITH FLOATING TOOL TO CARRY OUT DRILLING, BORING, COUNTERSINKING AND SIMILAR OPERATIONS AT CONTROLLED DEPTH, WITH THE USE OF JIGS.
JPS531383A (en) Bark scraper for wire
JPS5590212A (en) Drill
US3051205A (en) Twist drill
JPS6481007A (en) Processing method for work of optional form
JPS52156494A (en) Drill for working taper hole
JPS5695525A (en) Boring reamer
JPS5590213A (en) Drill
JPS5554101A (en) Cutting method
JPS5721213A (en) Drill
JPS5695528A (en) Boring reamer having end mill edge
JPS56146604A (en) Cutting tool
JPS5761403A (en) Cutting tool
JPS5383177A (en) Cutting tool made coated high-speed steel
JPS5615908A (en) Drill with distorted groove
JPS6451206A (en) Throw away tip for turning work
Orsini Reaming Tools
JPS5531532A (en) Cutting machining method
JPS5596203A (en) Cemented carbide cutting tool coated with hard film