FR2433996A1 - Foret helicoidal et appareil pour l'affuter - Google Patents

Foret helicoidal et appareil pour l'affuter

Info

Publication number
FR2433996A1
FR2433996A1 FR7921138A FR7921138A FR2433996A1 FR 2433996 A1 FR2433996 A1 FR 2433996A1 FR 7921138 A FR7921138 A FR 7921138A FR 7921138 A FR7921138 A FR 7921138A FR 2433996 A1 FR2433996 A1 FR 2433996A1
Authority
FR
France
Prior art keywords
drill
edges
sharpening apparatus
helical drill
axis
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
FR7921138A
Other languages
English (en)
Other versions
FR2433996B1 (fr
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.)
KAWARAGI Manufacturing CO
Original Assignee
KAWARAGI Manufacturing CO
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 KAWARAGI Manufacturing CO filed Critical KAWARAGI Manufacturing CO
Publication of FR2433996A1 publication Critical patent/FR2433996A1/fr
Application granted granted Critical
Publication of FR2433996B1 publication Critical patent/FR2433996B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • B24B3/26—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/04—Angles, e.g. cutting angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/04—Angles, e.g. cutting angles
    • B23B2251/047—Axial clearance angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/18—Configuration of the drill point

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

Perçage. Foret élicoïdal et appareil pour l'affûter. Le foret hélicoïdal des arêtes de coupe 12, 14 planes et des plats 16, 18 symétriques par rapport à un point de l'axe de ce foret et des arêtes médianes 26, 28 situées à l'intérieur de ces arêtes de coupe et présentant une extrémité pointue, lesdites arêtes médianes venant au contact de la pièce à usiner suivant un angle obtus et lesdits plats faisant un angle aigu avec l'axe du foret.
FR7921138A 1978-08-22 1979-08-22 Foret helicoidal et appareil pour l'affuter Granted FR2433996A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10139078A JPS5531523A (en) 1978-08-22 1978-08-22 Twist drill

Publications (2)

Publication Number Publication Date
FR2433996A1 true FR2433996A1 (fr) 1980-03-21
FR2433996B1 FR2433996B1 (fr) 1983-02-18

Family

ID=14299419

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7921138A Granted FR2433996A1 (fr) 1978-08-22 1979-08-22 Foret helicoidal et appareil pour l'affuter

Country Status (2)

Country Link
JP (1) JPS5531523A (fr)
FR (1) FR2433996A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005092547A1 (fr) * 2004-03-17 2005-10-06 Kennametal Inc. Foret helicoidal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5519723B2 (ja) * 2012-04-11 2014-06-11 住友電工ハードメタル株式会社 刃先交換式ドリル

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB168634A (en) * 1920-05-08 1921-09-08 Herbert Hunt Improvements in twist drill point grinding machines
GB306887A (en) * 1928-02-27 1929-07-11 Paul Touzot Improvements in or relating to apparatus for sharpening twist drills
CH135810A (fr) * 1929-05-31 1929-10-15 Huguenin Henri Procédé pour affûter les petits forets et outillage pour la mise en oeuvre dudit procédé.
FR669821A (fr) * 1929-11-30
FR959100A (fr) * 1946-02-08 1950-03-23
FR1138018A (fr) * 1955-12-06 1957-06-06 Procédé et appareil d'affûtage des forets
US2932135A (en) * 1956-12-18 1960-04-12 Tatar Alexander Machine for sharpening four-face drills
US2932924A (en) * 1956-10-11 1960-04-19 Zachow Frank Henry Drill sharpening apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR669821A (fr) * 1929-11-30
GB168634A (en) * 1920-05-08 1921-09-08 Herbert Hunt Improvements in twist drill point grinding machines
GB306887A (en) * 1928-02-27 1929-07-11 Paul Touzot Improvements in or relating to apparatus for sharpening twist drills
CH135810A (fr) * 1929-05-31 1929-10-15 Huguenin Henri Procédé pour affûter les petits forets et outillage pour la mise en oeuvre dudit procédé.
FR959100A (fr) * 1946-02-08 1950-03-23
FR1138018A (fr) * 1955-12-06 1957-06-06 Procédé et appareil d'affûtage des forets
US2932924A (en) * 1956-10-11 1960-04-19 Zachow Frank Henry Drill sharpening apparatus
US2932135A (en) * 1956-12-18 1960-04-12 Tatar Alexander Machine for sharpening four-face drills

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005092547A1 (fr) * 2004-03-17 2005-10-06 Kennametal Inc. Foret helicoidal
CN100417479C (zh) * 2004-03-17 2008-09-10 钴碳化钨硬质合金公司 麻花钻
US7837418B2 (en) 2004-03-17 2010-11-23 Kennametal Inc. Twist drill

Also Published As

Publication number Publication date
JPS5531523A (en) 1980-03-05
FR2433996B1 (fr) 1983-02-18

Similar Documents

Publication Publication Date Title
ES8603018A1 (es) Un dispositivo de arpon liberable para recuperar miembros tubulares de un pozo de sondeo
GB1207237A (en) Depth stop and hand grip fastening arrangement for drilling and like machines
GB1248480A (en) Twist drill assembly
SE7413619L (fr)
ES2050467T3 (es) Herramienta desbarbadora con cuchilla oscilante.
BE899201A (fr) Mandrin pour percage avec percussion.
ES8105458A1 (es) Procedimiento de fabricacion de un elemento de union para ser atornillado en un conducto tubular o aparato, para obte-ner un circuito hermetico para un fluido a presion, y ele- mento de union asi obtenido
FR2438521A1 (fr) Machine d'usinage par electro-erosion
BG48698A3 (bg) Направляващ и центриращ механизъм на стоманена сонда
US2146777A (en) Saw handle
FR2379695A1 (fr) Dent pour outil de forage de fondation a mouvement rotatif
FR2423309A1 (fr) Coupe-tubes a dispositif de coupe rajustable par un manche et un mecanisme a tige filetee
FR2371249A1 (fr) Dispositif pour l'ebavurage interieur de tubes ou de profiles comportant des lignes de soudure longitudinales
KR850007020A (ko) 와이어커트 방전가공기에 있어서의 와이어전극 안내장치
FR2405777A1 (fr) Plateau d'alesage avec lames de coupe
FR2442096A1 (fr) Mandrin pour machine-outil, en particulier porte-foret a couronne dentee
GB1065389A (en) Tool holder
FR2430290A1 (fr) Dispositif formant tete remplacable pour outils de dessoudage
GB824774A (en) A device for use in fitting screw hooks
JPS5590212A (en) Drill
US2536279A (en) Holder for grinding lathe tool bits
FR2383763A1 (fr) Meche a bois
RU4328U1 (ru) Буроям ручной
US1977491A (en) Inside grooving tool
GB1205961A (en) Improvements in hand tools

Legal Events

Date Code Title Description
ST Notification of lapse