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lost foam casting

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060085
EISBN: 978-1-62708-261-7
... the mold cavity for the engine block completely (if the liquid is too cold), or it may adversely react with the mold walls and create a poor casting surface (if the liquid is too hot). Fig. 5.3 Lost foam casting of an automotive engine block Pouring or teeming temperatures are always selected...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410029
EISBN: 978-1-62708-280-8
... process is also called the “lost foam process” because the process utilizes an expendable (lost) foam pattern for each pour. The foam pattern is a replica of the casting (but is slightly larger compensating for solidification contraction). The foam pattern, with gating, is embedded into unbonded sand...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740047
EISBN: 978-1-62708-308-9
... casting should be used. Source: Ref 6 Of the expendable mold/permanent pattern processes listed in Table 1 , green sand molding is the most prevalent. Expendable mold/expendable pattern processes use wax patterns (investment casting) or foamed plastic patterns (lost foam casting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.9781627082808
EISBN: 978-1-62708-280-8
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140021
EISBN: 978-1-62708-335-5
.... Important variations include molding and pattern distinctions such as lost-foam (evaporative pattern), shell and V-mold, and process derivatives such as squeeze casting, low-pressure permanent mold, vacuum riserless casting, and semisolid forming based on rheocasting/thixocasting principles. Many...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.9781627083355
EISBN: 978-1-62708-335-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240095
EISBN: 978-1-62708-251-8
.... The two mold halves are clamped together and placed in a flask supported with either sand or metal shot. Fig. 7.16 Shell molding process. Source: Ref 9 Evaporative pattern casting, also known as the lost foam process, is used quite extensively in the automotive and marine industries...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060175
EISBN: 978-1-62708-261-7
... molding (principally shell molding and no-bake), and permanent molding (typically to produce carbon steel railroad wheels in graphite molds). Small amounts of cast steel are also produced by investment casting (3%), centrifugal casting (3%), and lost-foam casting (0.4%). Various steel product forms...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780115
EISBN: 978-1-62708-281-5
... … … Polyimide resins 315–370 (c) 600–700 (c) … … Polyurethane (cast) 135 275 … … Polyurethane (elastomer) … … … … Silicone −125 −193 … … Urethane rigid foam … … … … (a) Polymer is generally 95% or more noncrystalline. Any T m given is for remaining crystalline portion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550457
EISBN: 978-1-62708-307-2
... mold), investment, squeeze, and lost foam casting processes as well as high-pressure die casting. However, experience has shown that several modifications must be made to the normal melting and casting practice in order to produce high-quality castings from a composite. Some of the differences...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780028
EISBN: 978-1-62708-281-5
... structure PLASTICS are so prevalent in our lives that it is easy to overlook the vast differences in their properties and how specialized many polymers have become. Consider the differences between aramid bulletproof vests and the polyurethane foam used in pillows. Why can plates made of crystallized...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870001
EISBN: 978-1-62708-299-0
... such as lost foam casting. Table 11 provides shipment statistics for aluminum castings. Transportation is the leading market, and the trend toward increasing use in automotive applications is increasing the importance of castings in the total industry picture. Table 11 Shipments of aluminum castings...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870101
EISBN: 978-1-62708-314-0
... cast epoxies, foams, plasters, wood, and laminated polyurethane tooling boards, as shown in Fig. 4.13 . Once the master model is complete, a plastic-faced plaster (PFP) is usually made off of the master. Plastic-faced plasters can be made of pure plaster, have epoxy faces backed by plaster, or have...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480161
EISBN: 978-1-62708-318-8
... Abstract Casting is the most economical processing route for producing titanium parts, and unlike most metals, the properties of cast titanium are on par with those of wrought. This chapter covers titanium melting and casting practices -- including vacuum arc remelting, consumable electrode arc...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
...., environmental issues involving certain coating processes), and lost production. Not only is there a direct and indirect financial burden, but corrosion also has a considerable societal impact. Crucial industries such as energy, aerospace, transportation, food, agriculture, electronics, marine...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300301
EISBN: 978-1-62708-323-2
... materials, such as fiberglass, are considered to be plastics, even though they are sometimes made into shapes by the casting of a liquid that sets up by chemical reaction. Fiberglass types of materials are more correctly termed fiber-reinforced plastic, and they fit more correctly into the materials...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980009
EISBN: 978-1-62708-342-3
... alloy products have lost a large part of their market since World War II because of the toxic properties of these alloys. Even in the 1950s, extruded lead alloys were still used for water supply pipes up to the fittings on sinks. These materials were also used for extruded water waste pipes. This has...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030247
EISBN: 978-1-62708-282-2
... materials for chemicals constitute a complex and demanding process where corrosion (in all its many forms) is an inherent hazard. The costs in terms of lost production, the replacement of materials of construction, and the constant personnel involvement in corrosion control are substantial...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030338
EISBN: 978-1-62708-282-2
... galvanic series and redox potentials of metals and alloys in neutral soils and water Material Potential (CSE) (a) , V Most noble Carbon, graphite, coke +0.3 Platinum 0 to –0.1 Mill scale on steel –0.2 High-silicon cast iron –0.2 Copper, brass, bronze –0.2 Low-carbon...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400169
EISBN: 978-1-62708-258-7
.... The techniques have been used to prepare many types of steels and cast irons and are proven to be effective. Special “metallographic tips” are added to give the reader special instructions that may be helpful in difficult situations. Further details on technique can be found in the Selected References...