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lost-wax investment molding

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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
... prevalent. Expendable mold/expendable pattern processes use wax patterns (investment casting) or foamed plastic patterns (lost foam casting). The investment casting process is one of the oldest casting processes known (it has been used for more than 6000 years), while the lost foam process has been used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410029
EISBN: 978-1-62708-280-8
... 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 by compacting the flask...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240095
EISBN: 978-1-62708-251-8
... casting process ( Fig. 7.18 ), also known as the lost wax process, a pattern of the part is produced from wax. The waxes are formulated to give smooth, defect-free surfaces, have thermal stability, maintain tolerances, and have a relatively long shelf life. The wax patterns are then robotically dipped...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.9781627082808
EISBN: 978-1-62708-280-8
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120039
EISBN: 978-1-62708-269-3
... lost-wax ceramic shell systems were developed by the various foundries engaged in titanium casting. Usually the face coats of the ceramic shells are made with the proprietary coatings and conventional refractory systems are used to add shell strength. Regardless of mold type (e.g., investment or rammed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060085
EISBN: 978-1-62708-261-7
... 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 to be higher than the liquidus temperature of the alloy. This occurs because some amount of heat is unavoidably lost while...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140021
EISBN: 978-1-62708-335-5
... Sand Casting 3.4.2 Evaporative (Lost-Foam) Pattern Casting (EPC) 3.4.3 Shell Mold Casting 3.4.4 Plaster Casting 3.4.5 Investment Casting 3.4.6 Vacuum Mold (V-Mold) Casting 3.5.1 Permanent Mold Casting 3.5.2 Low-Pressure Die Casting (LP), Pressure Riserless Casting (PRC) 3.5.3...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480161
EISBN: 978-1-62708-318-8
... Attractive Ti-6Al-4V powder injection molding mechanical properties Oxygen content, wt% Relative density, % Ultimate tensile strength Elongation, % Binder system MPa ksi 0.24 96.0 971 140.8 12.0 Polypropylene-ethyl vinyl acetate, paraffin wax, carnauba wax, dioctyl phthalate 0.25...
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: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290201
EISBN: 978-1-62708-319-5
... Representative 17-4 PH feedstock attributes and corresponding molding parameters Binder filler phase = 58% paraffin wax Paraffin wax melting temperature = 65 °C (150 °F) Binder backbone phase = 37% polypropylene Polypropylene melting temperature = 130 °C (265 °F) Binder surfactant = 5% stearic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550141
EISBN: 978-1-62708-307-2
..., with corrosion rates similar to those of the common aluminum-base casting alloys. The investment (lost wax) process is used for casting complex components, parts with very thin-walled sections, when fine surface finishes are required, and when improvement in dimensional accuracy is required. The same alloys...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550033
EISBN: 978-1-62708-307-2
... housings A242.0 Diesel and aircraft pistons; air-cooled cylinder heads; aircraft generator housings B295.0 Gear housings; aircraft fittings; compressor connecting rods; railway car seat frames 308.0 General-purpose permanent mold castings; ornamental grilles and reflectors 319.0 Engine...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350043
EISBN: 978-1-62708-315-7
... Steel, type 304 stainless FOF 0.18 … 5 Steel, type 347 stainless FOF 0.19 … 5 Graphite (clean) Graphite (clean) UnSp 0.10 … 1 Graphite (outgassed) Graphite (outgassed) UnSp 0.5–0.8 … 1 Hickory wood, waxed Snow UnSp … 0.14 6 Ice Bronze UnSp … 0.02 6 Ebonite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230295
EISBN: 978-1-62708-298-3
... normally used for manufacturing products from conventional metals—fabrication of products directly from ingot-cast material—is unsuitable for beryllium products. Beryllium is a highly reactive metal with a high melting point, making it susceptible to react with mold-wall materials, forming beryllium...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.9781627083232
EISBN: 978-1-62708-323-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.9781627082587
EISBN: 978-1-62708-258-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980195
EISBN: 978-1-62708-342-3
...-stamping components. Car tire valves are produced from the alloy ZnAl15. After hot rolling, extrusion is the most important deformation process for zinc-base alloys, although the main application of zinc alloys is pressure die castings. The extrusion of these alloys has lost a lot of its importance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.9781627082976
EISBN: 978-1-62708-297-6
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030247
EISBN: 978-1-62708-282-2
... and raw 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 February 2005
DOI: 10.31399/asm.tb.chffa.9781627083003
EISBN: 978-1-62708-300-3