FR873752A - Perfectionnement aux forets de perçage - Google Patents

Perfectionnement aux forets de perçage

Info

Publication number
FR873752A
FR873752A FR873752DA FR873752A FR 873752 A FR873752 A FR 873752A FR 873752D A FR873752D A FR 873752DA FR 873752 A FR873752 A FR 873752A
Authority
FR
France
Prior art keywords
further training
drilling drills
drills
drilling
training
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
Application number
Other languages
English (en)
Inventor
Leon-Louis-Emile Thiery
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 filed Critical
Application granted granted Critical
Publication of FR873752A publication Critical patent/FR873752A/fr
Expired 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/46—Drills having a centre free from cutting edges or with recessed cutting edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR873752D 1941-03-06 1941-03-06 Perfectionnement aux forets de perçage Expired FR873752A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR873752T 1941-03-06

Publications (1)

Publication Number Publication Date
FR873752A true FR873752A (fr) 1942-07-20

Family

ID=9359444

Family Applications (1)

Application Number Title Priority Date Filing Date
FR873752D Expired FR873752A (fr) 1941-03-06 1941-03-06 Perfectionnement aux forets de perçage

Country Status (1)

Country Link
FR (1) FR873752A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587980A (en) * 1947-04-14 1952-03-04 Nat Tool Salvage Company Drill
US3028773A (en) * 1959-07-30 1962-04-10 Gen Electric Drill
FR2489191A1 (fr) * 1980-08-29 1982-03-05 Hosoi Toshiaki Foret perfectionne, notamment pour le forage de trous profonds
EP0103235A1 (fr) * 1982-09-14 1984-03-21 Hartmetallwerkzeugfabrik Andreas Maier Gmbh + Co. Kg Outil de perçage
EP0151251A3 (en) * 1983-12-09 1985-10-16 Hartmetallwerkzeugfabrik Andreas Maier Gmbh + Co Kg Drill having a plurality of cutting edges

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587980A (en) * 1947-04-14 1952-03-04 Nat Tool Salvage Company Drill
US3028773A (en) * 1959-07-30 1962-04-10 Gen Electric Drill
FR2489191A1 (fr) * 1980-08-29 1982-03-05 Hosoi Toshiaki Foret perfectionne, notamment pour le forage de trous profonds
EP0103235A1 (fr) * 1982-09-14 1984-03-21 Hartmetallwerkzeugfabrik Andreas Maier Gmbh + Co. Kg Outil de perçage
EP0151251A3 (en) * 1983-12-09 1985-10-16 Hartmetallwerkzeugfabrik Andreas Maier Gmbh + Co Kg Drill having a plurality of cutting edges
US4645389A (en) * 1983-12-09 1987-02-24 Hartmetallwerkzeugfabrik Andreas Maier Gmbh & Co. Multiple-tooth drill bit

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