GB624164A - Improvements in percussion drilling tools having sintered carbide alloy inserts and in the method of making the same - Google Patents

Improvements in percussion drilling tools having sintered carbide alloy inserts and in the method of making the same

Info

Publication number
GB624164A
GB624164A GB18049/47A GB1804947A GB624164A GB 624164 A GB624164 A GB 624164A GB 18049/47 A GB18049/47 A GB 18049/47A GB 1804947 A GB1804947 A GB 1804947A GB 624164 A GB624164 A GB 624164A
Authority
GB
United Kingdom
Prior art keywords
groove
insert
carbide alloy
sintered carbide
making
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
GB18049/47A
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.)
Sandvik AB
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 GB624164A publication Critical patent/GB624164A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B10/58—Chisel-type inserts

Abstract

624,164. Percussive drills. SANDVIKENS JERNVERKS AKTIEBOLAG. July 8, 1947, No. 18049. Convention date, Oct. 10, 1945. [Class 124] [Also in Group XXII] In a percussive drill having one or more sintered carbide alloy inserts brazed into a transverse groove in the head, the thickness of brazing metal between the sides of the groove and the insert is greater than that between the bottom of the groove and the insert. The insert may be spaced by a metallic spacer equally from the sides not less than .004 in., preferably .008 in. to .03 in., and from the bottom of the groove not more than .004 in. The brazing metal may be a strip longer than the groove and placed beforehand in the groove. A flux may be used and heating may be by high frequency electric currents. The insert may be pressed into the groove and the pressure maintained until the brazing metal has set.
GB18049/47A 1945-10-10 1947-07-08 Improvements in percussion drilling tools having sintered carbide alloy inserts and in the method of making the same Expired GB624164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE624164X 1945-10-10

Publications (1)

Publication Number Publication Date
GB624164A true GB624164A (en) 1949-05-27

Family

ID=20313329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18049/47A Expired GB624164A (en) 1945-10-10 1947-07-08 Improvements in percussion drilling tools having sintered carbide alloy inserts and in the method of making the same

Country Status (1)

Country Link
GB (1) GB624164A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247855A (en) * 1990-09-12 1992-03-18 Camco Drilling Group Ltd Improvements in or relating to the manufacture of cutting structures for rotary drill bits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247855A (en) * 1990-09-12 1992-03-18 Camco Drilling Group Ltd Improvements in or relating to the manufacture of cutting structures for rotary drill bits
GB2247855B (en) * 1990-09-12 1994-09-07 Camco Drilling Group Ltd Improvements in or relating to the manufacture of cutting structures for rotary drill bits

Similar Documents

Publication Publication Date Title
GB948107A (en) Spade drill blade
GB643790A (en) Improvements in or relating to drill-bits or drill-steels having hard metal tips suitable for rock drilling
GB1088526A (en) Composite drill rod and method for making the same
GB664983A (en) Improvements in and relating to tool tipping
GB624164A (en) Improvements in percussion drilling tools having sintered carbide alloy inserts and in the method of making the same
GB1299960A (en) A drill, particularly a so-called deep hole drill or gun boring drill
GB1378358A (en) Drilling buttons
GB668810A (en) Improvements in rock drilling bits having hard metal cutting edges
GB958384A (en) A drill bit and method of brazing a cutting insert in a slot formed in the working end of a drill bit body
GB637237A (en) Improvements in and relating to rock drills
GB659359A (en) Improvements in burr-drills
GB296352A (en)
GB705784A (en) Improvements in or relating to twist drills
GB677213A (en) Improvements in and relating to methods of brazing titanium
GB706058A (en) Method of securing shaped pieces of hard metal into carrier bodies by soldering or brazing
GB636768A (en) Improvements relating to drilling appliances
GB488358A (en) Improvements in high speed tools for lathes, planers, slotters and like machines
GB599451A (en) An improved boring bit for use in drilling coal, stone and the like
GB739960A (en) Improvements in or relating to core samplers
GB191121558A (en) Improvements in and in the Manufacture of High Speed Twist Drills.
GB546926A (en) Improvements in tool jigs
GB632885A (en) Improvements in or relating to cutting tools made of tungsten and similar carbides
GB409385A (en) Improvements in or relating to rock-boring tools
GB153062A (en) Improved manufacture of tools of high speed metal
GB996796A (en) Improvements in and relating to tools for operating in rock, coal and other material