DE8805449U1 - - Google Patents

Info

Publication number
DE8805449U1
DE8805449U1 DE8805449U DE8805449U DE8805449U1 DE 8805449 U1 DE8805449 U1 DE 8805449U1 DE 8805449 U DE8805449 U DE 8805449U DE 8805449 U DE8805449 U DE 8805449U DE 8805449 U1 DE8805449 U1 DE 8805449U1
Authority
DE
Germany
Prior art keywords
tubular
face
wall thickness
greater wall
upsetting
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
DE8805449U
Other languages
English (en)
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.)
MAIER WOLFGANG 5630 REMSCHEID DE
Original Assignee
MAIER WOLFGANG 5630 REMSCHEID DE
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 MAIER WOLFGANG 5630 REMSCHEID DE filed Critical MAIER WOLFGANG 5630 REMSCHEID DE
Priority to DE8805449U priority Critical patent/DE8805449U1/de
Publication of DE8805449U1 publication Critical patent/DE8805449U1/de
Priority to AT88119262T priority patent/ATE91749T1/de
Priority to EP88119262A priority patent/EP0340340B1/de
Priority to DE88119262T priority patent/DE3882520D1/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D65/00—Making tools for sawing machines or sawing devices for use in cutting any kind of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • 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
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
DE8805449U 1988-04-25 1988-04-25 Expired DE8805449U1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8805449U DE8805449U1 (de) 1988-04-25 1988-04-25
AT88119262T ATE91749T1 (de) 1988-04-25 1988-11-19 Verfahren zum herstellen eines diamantkernbohrers.
EP88119262A EP0340340B1 (de) 1988-04-25 1988-11-19 Verfahren zum Herstellen eines Diamant-Kernbohrers
DE88119262T DE3882520D1 (de) 1988-04-25 1988-11-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8805449U DE8805449U1 (de) 1988-04-25 1988-04-25

Publications (1)

Publication Number Publication Date
DE8805449U1 true DE8805449U1 (de) 1988-06-09

Family

ID=6823338

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8805449U Expired DE8805449U1 (de) 1988-04-25 1988-04-25
DE88119262T Expired - Fee Related DE3882520D1 (de) 1988-04-25 1988-11-19

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE88119262T Expired - Fee Related DE3882520D1 (de) 1988-04-25 1988-11-19

Country Status (3)

Country Link
EP (1) EP0340340B1 (de)
AT (1) ATE91749T1 (de)
DE (2) DE8805449U1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436915A1 (de) * 1994-10-15 1996-04-18 Hilti Ag Hohlbohrkrone mit einem hohlzylindrischen Trägerkörper
BE1013336A3 (nl) * 2000-03-01 2001-12-04 Diamant Boart Nv Buisvormige boor.
DE10041911B4 (de) * 2000-08-25 2009-02-05 Hilti Aktiengesellschaft Diamantbohrkrone
CN109352837B (zh) * 2018-10-25 2021-02-12 江苏锋泰工具有限公司 一种干式tm齿打孔钻

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE199063C (de) *
CH185076A (de) * 1935-05-04 1936-07-15 Sauer Carl Kernbohrer für Mauerwerk.
GB601428A (en) * 1945-06-18 1948-05-05 Wheel Trueing Tool Company Of Improvements in or relating to core bits
US3306380A (en) * 1964-01-27 1967-02-28 Gen Automation Mfg Inc Core drill
DE3408092A1 (de) * 1984-03-05 1985-09-19 Hilti Ag, Schaan Hohlbohrer
DE3512114A1 (de) * 1985-04-03 1986-10-09 Meissner, Joachim Hohlbohrkrone

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1996181A (en) * 1930-11-01 1935-04-02 Justin F Wait Process of forming castings
US2796777A (en) * 1953-05-06 1957-06-25 Stoll Albert Method and apparatus for resizing tools
US3802520A (en) * 1972-02-16 1974-04-09 L Whitman Combination masonry diamond bit and metal hole-cutting saw
US3981371A (en) * 1975-06-06 1976-09-21 Jamie Malcolm Wallis Core sampling drill
GB1583860A (en) * 1976-08-20 1981-02-04 Moppes & Sons Ltd L Van Core drills
CA1053938A (en) * 1977-11-18 1979-05-08 Robert E. Generoux Drill bit
JPS57127535A (en) * 1981-01-29 1982-08-07 Kobe Steel Ltd Upset forging method
JPS58163542A (ja) * 1982-03-23 1983-09-28 Sumitomo Metal Ind Ltd 管体のアプセツト加工方法
JPS63149038A (ja) * 1986-12-15 1988-06-21 Nippon Steel Corp 外アツプセツト・プレスによる鋼管端部の加工方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE199063C (de) *
CH185076A (de) * 1935-05-04 1936-07-15 Sauer Carl Kernbohrer für Mauerwerk.
GB601428A (en) * 1945-06-18 1948-05-05 Wheel Trueing Tool Company Of Improvements in or relating to core bits
US3306380A (en) * 1964-01-27 1967-02-28 Gen Automation Mfg Inc Core drill
DE3408092A1 (de) * 1984-03-05 1985-09-19 Hilti Ag, Schaan Hohlbohrer
DE3512114A1 (de) * 1985-04-03 1986-10-09 Meissner, Joachim Hohlbohrkrone

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Z: IDR 17, 1983, S.250-252 *

Also Published As

Publication number Publication date
EP0340340A1 (de) 1989-11-08
DE3882520D1 (de) 1993-08-26
ATE91749T1 (de) 1993-08-15
EP0340340B1 (de) 1993-07-21

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