BR9000355A - PROCESS FOR INCREASING THE STRENGTH OF AN IMPACT DRILLING ELEMENT AND IMPACT DRILLING ELEMENT - Google Patents

PROCESS FOR INCREASING THE STRENGTH OF AN IMPACT DRILLING ELEMENT AND IMPACT DRILLING ELEMENT

Info

Publication number
BR9000355A
BR9000355A BR9000355A BR9000355A BR9000355A BR 9000355 A BR9000355 A BR 9000355A BR 9000355 A BR9000355 A BR 9000355A BR 9000355 A BR9000355 A BR 9000355A BR 9000355 A BR9000355 A BR 9000355A
Authority
BR
Brazil
Prior art keywords
drilling element
impact drilling
strength
increasing
impact
Prior art date
Application number
BR9000355A
Other languages
Portuguese (pt)
Inventor
Anders Rystedt
Original Assignee
Sandvik 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 Sandvik Ab filed Critical Sandvik Ab
Publication of BR9000355A publication Critical patent/BR9000355A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/08—Modifying the physical properties of iron or steel by deformation by cold working of the surface by burnishing or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
BR9000355A 1989-02-02 1990-01-29 PROCESS FOR INCREASING THE STRENGTH OF AN IMPACT DRILLING ELEMENT AND IMPACT DRILLING ELEMENT BR9000355A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8900358A SE8900358L (en) 1989-02-02 1989-02-02 PROCEDURES TO ACHIEVE HALF FASTENING SEARCH ON AN ITEM FOR BEAUTIFUL DRILLING

Publications (1)

Publication Number Publication Date
BR9000355A true BR9000355A (en) 1990-12-04

Family

ID=20374924

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9000355A BR9000355A (en) 1989-02-02 1990-01-29 PROCESS FOR INCREASING THE STRENGTH OF AN IMPACT DRILLING ELEMENT AND IMPACT DRILLING ELEMENT

Country Status (7)

Country Link
EP (1) EP0381648A1 (en)
JP (1) JPH02298478A (en)
AU (1) AU4860790A (en)
BR (1) BR9000355A (en)
CA (1) CA2009179A1 (en)
FI (1) FI900532A0 (en)
SE (1) SE8900358L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401630B (en) * 1992-05-25 1996-10-25 Plansee Tizit Gmbh METHOD FOR PRODUCING MOLDED PARTS WITH ROLLED SURFACES OF HIGH FIT ACCURACY
NL1023342C2 (en) * 2003-05-05 2004-11-09 Skf Ab Method for treating the surface of a machine element.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2161155A6 (en) * 1970-11-23 1973-07-06 Stephanois Rech

Also Published As

Publication number Publication date
SE8900358D0 (en) 1989-02-02
SE8900358L (en) 1990-08-03
CA2009179A1 (en) 1990-08-02
FI900532A0 (en) 1990-02-02
JPH02298478A (en) 1990-12-10
EP0381648A1 (en) 1990-08-08
AU4860790A (en) 1990-08-09

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