DE68919702D1 - Feingiessverfahren. - Google Patents

Feingiessverfahren.

Info

Publication number
DE68919702D1
DE68919702D1 DE68919702T DE68919702T DE68919702D1 DE 68919702 D1 DE68919702 D1 DE 68919702D1 DE 68919702 T DE68919702 T DE 68919702T DE 68919702 T DE68919702 T DE 68919702T DE 68919702 D1 DE68919702 D1 DE 68919702D1
Authority
DE
Germany
Prior art keywords
powdering process
powdering
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 - Lifetime
Application number
DE68919702T
Other languages
English (en)
Inventor
Neil Andrew Abercrombi Simpson
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.)
Astec Developments Ltd
Original Assignee
Astec Developments Ltd
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
Priority claimed from GB888818382A external-priority patent/GB8818382D0/en
Priority claimed from GB888821521A external-priority patent/GB8821521D0/en
Application filed by Astec Developments Ltd filed Critical Astec Developments Ltd
Application granted granted Critical
Publication of DE68919702D1 publication Critical patent/DE68919702D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/06—Casting in, on, or around objects which form part of the product for manufacturing or repairing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
    • 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
DE68919702T 1988-08-02 1989-08-02 Feingiessverfahren. Expired - Lifetime DE68919702D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB888818382A GB8818382D0 (en) 1988-08-02 1988-08-02 Casting process
GB888821521A GB8821521D0 (en) 1988-09-14 1988-09-14 Casting process
PCT/GB1989/000881 WO1990001384A1 (en) 1988-08-02 1989-08-02 Investment casting process

Publications (1)

Publication Number Publication Date
DE68919702D1 true DE68919702D1 (de) 1995-01-12

Family

ID=26294231

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68919702T Expired - Lifetime DE68919702D1 (de) 1988-08-02 1989-08-02 Feingiessverfahren.

Country Status (5)

Country Link
US (1) US5358026A (de)
EP (1) EP0430989B1 (de)
AU (1) AU4060389A (de)
DE (1) DE68919702D1 (de)
WO (1) WO1990001384A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9103828D0 (en) * 1991-02-23 1991-04-10 Brit Bit Limited Improvements relating to drill bits
GB2318993B (en) * 1995-01-13 1998-10-14 Camco Drilling Group Ltd Improvements in or relating to rotary drill bits
GB9500659D0 (en) * 1995-01-13 1995-03-08 Camco Drilling Group Ltd Improvements in or relating to rotary drill bits
GB9517372D0 (en) * 1995-08-24 1995-10-25 Bbl Drill bit body manufacture
US5924502A (en) * 1996-11-12 1999-07-20 Dresser Industries, Inc. Steel-bodied bit
US6655240B1 (en) 1997-06-02 2003-12-02 Snap-On Tools Company Insulating driver with injection molded shank and fluted working tip
GB9822979D0 (en) * 1998-10-22 1998-12-16 Camco Int Uk Ltd Methods of manufacturing rotary drill bits
GB2384263B (en) * 1999-01-25 2003-10-22 Baker Hughes Inc A mold for fabricating an earth-boring drill bit
SE523928C2 (sv) * 2001-11-13 2004-06-01 Ind Utvecklingscentrum I Olofs Verktyg samt förfarande för dess framställning
US20040238154A1 (en) * 2003-05-28 2004-12-02 Woodworker's Supply, Inc. Stainless steel forstner bit
DE102004038254A1 (de) * 2004-08-06 2006-03-16 Volker Gallatz Verfahren zum Herstellen eines Erzeugnisses sowie ein zugehöriges Erzeugnis
US8915166B2 (en) * 2007-07-27 2014-12-23 Varel International Ind., L.P. Single mold milling process
GB0900606D0 (en) 2009-01-15 2009-02-25 Downhole Products Plc Tubing shoe
US8517123B2 (en) 2009-05-29 2013-08-27 Varel International, Ind., L.P. Milling cap for a polycrystalline diamond compact cutter
SG175249A1 (en) * 2009-06-05 2011-11-28 Varel Int Ind Lp Casing bit and casing reamer designs
CN102189245B (zh) * 2010-11-17 2013-03-27 王惠臣 消失模铸造双金属双液复合破碎机锤的工艺方法
US9505064B2 (en) * 2011-11-16 2016-11-29 Kennametal Inc. Cutting tool having at least partially molded body and method of making same
US10472896B2 (en) * 2014-11-19 2019-11-12 Esco Group Llc Downhole tool and method of manufacturing a tool
CN104959535B (zh) * 2015-07-07 2016-09-14 东方电气集团东方汽轮机有限公司 筒状司太立零件精密铸造成型方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US167887A (en) * 1875-09-21 Improvement
US1676887A (en) * 1922-07-14 1928-07-10 John R Chamberlin Core-drill bit
GB556007A (en) * 1941-11-04 1943-09-16 Diamond Corebit & Tool Co Inc Method and apparatus for casting diamond studded tools
US2381415A (en) * 1943-11-19 1945-08-07 Jr Edward B Williams Drill bit
US3754593A (en) * 1971-12-06 1973-08-28 Wean United Inc Centrifugal casting of bi-metal rolls
US4023613A (en) * 1971-12-29 1977-05-17 Toyo Kogyo Co., Ltd. Method of making a composite metal casting
US3757879A (en) * 1972-08-24 1973-09-11 Christensen Diamond Prod Co Drill bits and methods of producing drill bits
US3945070A (en) * 1975-05-19 1976-03-23 Avia Instrument Company Wire thread cast insert
US4352400A (en) * 1980-12-01 1982-10-05 Christensen, Inc. Drill bit
US4423646A (en) * 1981-03-30 1984-01-03 N.C. Securities Holding, Inc. Process for producing a rotary drilling bit
JPS5930465A (ja) * 1982-08-12 1984-02-18 Yanmar Diesel Engine Co Ltd アルミニウム合金による鉄系材料の鋳包み方法
JPS59174262A (ja) * 1983-03-23 1984-10-02 Chobe Taguchi 銅合金と鋳鉄の溶着法
US4499795A (en) * 1983-09-23 1985-02-19 Strata Bit Corporation Method of drill bit manufacture
JPS6123822A (ja) * 1984-07-09 1986-02-01 Ngk Spark Plug Co Ltd 金属とセラミツクスの接合体
GB8508621D0 (en) * 1985-04-02 1985-05-09 Nl Petroleum Prod Rotary drill bits
JPS63183771A (ja) * 1986-12-23 1988-07-29 Hokkaido 溶射皮膜を利用した鋳込み接合法

Also Published As

Publication number Publication date
AU4060389A (en) 1990-03-05
US5358026A (en) 1994-10-25
EP0430989A1 (de) 1991-06-12
EP0430989B1 (de) 1994-11-30
WO1990001384A1 (en) 1990-02-22

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Legal Events

Date Code Title Description
8332 No legal effect for de