GB633999A - Improvements in drill bits for hammer drills having hard metal cutting edges - Google Patents

Improvements in drill bits for hammer drills having hard metal cutting edges

Info

Publication number
GB633999A
GB633999A GB5848/48A GB584848A GB633999A GB 633999 A GB633999 A GB 633999A GB 5848/48 A GB5848/48 A GB 5848/48A GB 584848 A GB584848 A GB 584848A GB 633999 A GB633999 A GB 633999A
Authority
GB
United Kingdom
Prior art keywords
hard metal
cutting edges
metal cutting
bit
drill bits
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
GB5848/48A
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.)
Atlas Copco AB
Original Assignee
Atlas Diesel AB
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 Atlas Diesel AB filed Critical Atlas Diesel AB
Publication of GB633999A publication Critical patent/GB633999A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58Chisel-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

633,999. Percussive tools. AKTIEBOLAGET ATLAS DIESEL. Feb. 26, 1948, No. 5848. Convention date, March 22, 1947. [Class 124] In a percussive drill in which the bit has hard metal cutting edges, the latter are formed by axial end faces of one or more hard metal insert plates 3, the height h<SP>1</SP> of each of which in the longitudinal direction of the bit is more than two and a half times its thickness b<SP>1</SP>, and the two, preferably parallel, large side surfaces and the base of which are embedded in and supported by the body material 2 of the bit. The hard metal may be a carbide, boride, nitride or silicide of tungsten, molybdenum, tantalum or titanium.
GB5848/48A 1947-03-22 1948-02-26 Improvements in drill bits for hammer drills having hard metal cutting edges Expired GB633999A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE633999X 1947-03-22

Publications (1)

Publication Number Publication Date
GB633999A true GB633999A (en) 1949-12-30

Family

ID=20313592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5848/48A Expired GB633999A (en) 1947-03-22 1948-02-26 Improvements in drill bits for hammer drills having hard metal cutting edges

Country Status (1)

Country Link
GB (1) GB633999A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3608861A1 (en) * 1986-03-08 1987-09-10 Fischer Artur Werke Gmbh Drill
WO2002092957A3 (en) * 2001-05-17 2003-04-17 Atlas Copco Mai Gmbh Drill bit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3608861A1 (en) * 1986-03-08 1987-09-10 Fischer Artur Werke Gmbh Drill
WO2002092957A3 (en) * 2001-05-17 2003-04-17 Atlas Copco Mai Gmbh Drill bit
EP1564365A2 (en) 2001-05-17 2005-08-17 Atlas Copco Mai GmbH Drill bit
EP1564365A3 (en) * 2001-05-17 2007-05-02 Atlas Copco Mai GmbH Drill bit

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