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rammed graphite molding

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480161
EISBN: 978-1-62708-318-8
... Rammed graphite mold section. Courtesy of TiLine Fig. 8.1 Diagram for a vacuum arc consumable electrode furnace Fig. 8.19 Diagram showing where powder metallurgy, in general, and powder injection molding, in particular fit in with other fabrication processes. Courtesy of Krebsöge...
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
... processing and heat treatment. Titanium castings have been cast in machined graphite molds, rammed-graphite molds, and proprietary investments used for precision investment casting. The principal technology that allowed the proliferation of titanium castings in the aerospace market was the investment...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980323
EISBN: 978-1-62708-342-3
... of a hot-top casting mold for casting aluminum extrusion billets [ Los 76 ] Fig. 6.73 Schematic arrangement of different hot-top molds and metal launders [ Sch 88 ] Fig. 6.74 Mold casting system with constant-level metal feed from the casting launder. Source: VAW-Elbewerk, Stade...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060085
EISBN: 978-1-62708-261-7
... graphite molds, rammed-graphite molds, and proprietary investments used for precision investment casting. The principal technology that allowed the proliferation of titanium castings in the aerospace market was the investment casting method introduced in the mid-1960s, coupled with the adaptation of hot...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.9781627083423
EISBN: 978-1-62708-342-3
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280041
EISBN: 978-1-62708-267-9
... is manually deslagged and poured into a teeming vessel. The teeming vessel, most commonly equipped with a moveable stopper plug in the vessel bottom, is used to introduce the metal into molds. Molds may be direct poured through the top of the mold, or more commonly, the melt is poured into a central sprue...
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
.... 1 begins with patternmaking. A pattern is a specially made model of the part to be produced, used for producing molds. Generally, sand is placed around the pattern, and, in the case of clay-bonded sand, rammed to the desired hardness. When chemical binders are used, the mold is chemically hardened...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870537
EISBN: 978-1-62708-314-0
..., centrifugal, or squeeze casting. A careful choice of casting technique, as well as the mold configuration, is important in obtaining a uniform distribution of reinforcements in compocast MMCs. Particles and discontinuous fibers of SiC, Al 2 O 3 , TiC, Si 3 N 4 , graphite, mica, glass, slag, magnesium oxide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780028
EISBN: 978-1-62708-281-5
... the walls of the mold. Injection molding is a batch operation used to rapidly produce complicated parts. Plastic pellets are fed through a hopper into the feed zone of a screw and melted in much the same way as occurs in a single-screw or ram extruder. However, rather than being forced through a die...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140021
EISBN: 978-1-62708-335-5
..., molten metal is injected under pressure into water-cooled dies. Pressure is maintained until the part has solidified. Molten metal usually enters the mold by the action of a hydraulic ram in a containment chamber (shot chamber), resulting in rapid filling of the mold cavity. While lubrication is required...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400161
EISBN: 978-1-62708-316-4
... sheet metal forming presses that utilize the mechanical servo-drive technology. The mechanical servo-drive press offers the flexibility of a hydraulic press (infinite ram speed and position control, availability of press force at any ram position) with the speed and reliability of a mechanical press...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.9781627083003
EISBN: 978-1-62708-300-3
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290201
EISBN: 978-1-62708-319-5
.... , and Hwang K.S. , Enhanced Mechanical Properties of Injection Molded 17-4 PH Stainless Steel through Reduction of Silica Particles by Graphite Additions , Mater. Trans. , Vol 51 , 2010 , p 2243 – 2250 6. Chung S.H. , Kwon Y.S. , Park S.J. , and German R.M. , Modeling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850060
EISBN: 978-1-62708-260-0
... with respect to the mount size, the greater the tendency for mold cracking at sharp corners. These cracks produce bleeding problems. The surface to be polished is placed face down on the center of the ram surface. With a small sample, if one surface is of interest, this edge can be centered. Clearance between...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240527
EISBN: 978-1-62708-251-8
... Fracture toughness Higher Fatigue life Lower Fatigue crack growth rate Lower Creep strength Higher Aqueous stress-corrosion cracking resistance Higher Hot salt stress-corrosion cracking resistance Lower Source: Ref 5 Titanium can be cast in machined graphite molds, rammed...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550325
EISBN: 978-1-62708-307-2
... of this reaction is the evolution of a water molecule each time the reaction occurs. When thermosets such as phenolics and polyimides that cure by condensation reactions are used for molded parts, they often contain high porosity levels, due to the water or alcohol vapors created by the condensation reactions...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740373
EISBN: 978-1-62708-308-9
... methods Table 2 Comparison of powder processing methods Characteristic Method Conventional Metal injection molding Hot isostatic pressing Powder forging Size Good Fair Excellent Good Shape complexity Good Excellent Very good Good Density Fair Very good Excellent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980195
EISBN: 978-1-62708-342-3
... a temperature profile with the temperature decreasing toward the back of the billet. In automatic fully integrated extrusion plants complete with melting furnaces and mold casting machines, as shown in Fig. 5.3 , the cast billets retain the heat from the casting process to assist the deformation process. Care...
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 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...