WO2002102532A3 - Investment casting with improved melt feeding - Google Patents

Investment casting with improved melt feeding Download PDF

Info

Publication number
WO2002102532A3
WO2002102532A3 PCT/US2002/000412 US0200412W WO02102532A3 WO 2002102532 A3 WO2002102532 A3 WO 2002102532A3 US 0200412 W US0200412 W US 0200412W WO 02102532 A3 WO02102532 A3 WO 02102532A3
Authority
WO
WIPO (PCT)
Prior art keywords
mold
metallic material
investment casting
molten
improved melt
Prior art date
Application number
PCT/US2002/000412
Other languages
French (fr)
Other versions
WO2002102532A2 (en
Inventor
Calvin L Kroes
Original Assignee
Howmet Res Corp
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 Howmet Res Corp filed Critical Howmet Res Corp
Publication of WO2002102532A2 publication Critical patent/WO2002102532A2/en
Publication of WO2002102532A3 publication Critical patent/WO2002102532A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
    • B22D27/13—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure making use of gas pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

Method and apparatus for casting of molten metallic material wherein the metallic material is introduced into a mold (10) and a pressure cap (30) then is clamped on the mold by a cam/cam follower mechanism (32) to form a seal such that pressurizing gas can be introduced into the mold on the molten metallic material therein. The pressure cap includes an inlet (62) for pressurizing gas, which is introduced on the molten metallic material in the mold after the pressure cap is sealed thereon. Application of gas pressure on the molten metallic material in the mold improves filling of mold with the molten material and reduces or eliminates non-fill voids in the solidified casting.
PCT/US2002/000412 2001-01-09 2002-01-08 Investment casting with improved melt feeding WO2002102532A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/757,303 US20020104639A1 (en) 2001-01-09 2001-01-09 Investment casting with improved melt feeding
US09/757,303 2001-01-09

Publications (2)

Publication Number Publication Date
WO2002102532A2 WO2002102532A2 (en) 2002-12-27
WO2002102532A3 true WO2002102532A3 (en) 2003-02-27

Family

ID=25047279

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/000412 WO2002102532A2 (en) 2001-01-09 2002-01-08 Investment casting with improved melt feeding

Country Status (2)

Country Link
US (1) US20020104639A1 (en)
WO (1) WO2002102532A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6951239B1 (en) * 2004-04-15 2005-10-04 United Technologies Corporation Methods for manufacturing investment casting shells
KR100955746B1 (en) 2009-07-15 2010-04-30 대림기업 주식회사 Gravity casting device
CN114799120A (en) * 2022-06-06 2022-07-29 南通兆通模具制造有限公司 Automobile parts die casting die with airtight compensation structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933153A1 (en) * 1998-01-29 1999-08-04 Volkswagen Aktiengesellschaft Mould for producing castings
US6019158A (en) * 1998-05-14 2000-02-01 Howmet Research Corporation Investment casting using pour cup reservoir with inverted melt feed gate
US6070644A (en) * 1998-05-14 2000-06-06 Howmet Research Corporation Investment casting using pressure cap sealable on gas permeable investment mold
DE19932116A1 (en) * 1999-07-09 2001-01-18 Daimler Chrysler Ag Casting apparatus for die casting light metal parts has a hood that can move relative to the casting mold, covers at least the region of the feeder and is provided with a connection for pressurized air

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933153A1 (en) * 1998-01-29 1999-08-04 Volkswagen Aktiengesellschaft Mould for producing castings
US6019158A (en) * 1998-05-14 2000-02-01 Howmet Research Corporation Investment casting using pour cup reservoir with inverted melt feed gate
US6070644A (en) * 1998-05-14 2000-06-06 Howmet Research Corporation Investment casting using pressure cap sealable on gas permeable investment mold
DE19932116A1 (en) * 1999-07-09 2001-01-18 Daimler Chrysler Ag Casting apparatus for die casting light metal parts has a hood that can move relative to the casting mold, covers at least the region of the feeder and is provided with a connection for pressurized air

Also Published As

Publication number Publication date
WO2002102532A2 (en) 2002-12-27
US20020104639A1 (en) 2002-08-08

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