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mass-reducing process

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Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005968
EISBN: 978-1-62708-166-5
... from lot to lot and also between materials. Part-related contributions (intrinsic noise): These are part geometry and section-size variations. Process-related contributions (extrinsic noise): These include temperature uniformity as affected by process control and mass effects, time control...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.9781627081979
EISBN: 978-1-62708-197-9
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009023
EISBN: 978-1-62708-187-0
... source is to supply liquid metal to the mass continuously until it is frozen solid without porosity. In this process, the freezing front inside the mass must not be cut off from its feeding source before the mass is solid. Sound metal can be produced only if proper directional solidification is...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005931
EISBN: 978-1-62708-166-5
... protection of furnaces and their contents. Good temperature-sensing devices will detect failure of a thermocouple or RTD, cause the process firing rate to be reduced to its minimum rate, and perhaps provide an alarm. Furnace temperature can be regulated by one of two very common procedures. Simple high and...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003065
EISBN: 978-1-62708-200-6
... in any glass that contains soda. It acts as a flux, reducing the temperature required to melt the silica. Soda ash is still made by the Solvay process (which reacts salt, or NaCl, and limestone to form Na 2 CO 3 , with CaCl 2 as a by-product) in some parts of the world. This material always...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003215
EISBN: 978-1-62708-199-3
... conditions of electrodeposition processes for chromium plating, nickel plating, iron plating, cadmium plating, zinc plating, indium plating, lead plating, tin plating, silver plating, gold plating, brass plating, bronze plating, tin-lead plating, zinc-iron plating, and zinc-nickel plating. The article also...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003972
EISBN: 978-1-62708-185-6
... sequence may be altered. In any event, the sequence progressively achieves the design specifications for the part in terms of geometric features, materials structure, and surface characteristics. A major goal of integrated product and process design is to reduce the overall cost. For example, if a...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005224
EISBN: 978-1-62708-187-0
..., reduced porosity and solidification shrinkage, improved mechanical properties, and so on. There are two primary semisolid processing routes: thixocasting and rheocasting. Thixocasting begins with a nondendritic solid precursor material that is specially prepared by the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003194
EISBN: 978-1-62708-199-3
.... Typical applications Edge finishing, radiusing, deburring, polishing, and minor surface material removal are accomplished with AFM. It is not a mass material-removal process, but it is particularly useful for polishing or deburring inaccessible internal passages. Materials from soft aluminum to tough...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.9781627082907
EISBN: 978-1-62708-290-7
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005955
EISBN: 978-1-62708-166-5
... levels, resistance heating elements, quenching systems, work load support, pumping systems, and temperature control systems. It describes the classification of instruments used for measuring and recording pressure inside a vacuum processing chamber. Common devices include hydrostatic measuring devices...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009015
EISBN: 978-1-62708-187-0
... Abstract This article provides a general introduction on casting processes and design. It discusses the process steps and methods of the main categories of shape casting methods, namely, expendable molds with permanent patterns, expendable molds with expendable patterns, and metal or permanent...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005199
EISBN: 978-1-62708-187-0
... degassing ( Table 3 and Fig. 12 ). Vacuum processes are designed to reduce the partial pressure of hydrogen, nitrogen, and carbon monoxide gas in the ambient atmosphere to enhance the kinetics of degassing, decarburization, and deoxidation. Alloy additions can also be made during the vacuum treatment...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
... to form a billet that can be used in subsequent processing (forging), or the mass is injected into a die cavity. Because the alloy starts its solidification in the mold cavity already partially solid, solidification shrinkage is reduced; so is gas porosity. The process can be operated like injection...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005286
EISBN: 978-1-62708-187-0
.... Molten metal must be composition controlled and processed before ingots are cast. Alloying, degassing to reduce dissolved hydrogen, treatment to separate and remove nonmetallic contamination, grain refinement, and, in some cases, the addition of elements influencing metallurgical structure are all within...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005249
EISBN: 978-1-62708-187-0
... Unicast ceramic is used as a 6.4 to 13 mm (¼ to ½ in.) facing backed by a specially blended, coarse-sand aggregate for support. This technique sharply reduces mold cost by conserving the ceramic material, and it permits the mechanized production of molds. The Unicast process employs conventional pattern...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005434
EISBN: 978-1-62708-196-2
... deposition These changes are also strongly dependent on momentum and heat-transfer phenomena, which are themselves strongly coupled to mass transport. Numerous surface processes take place at the gas-solid interface, where gaseous species are transported and adsorbed. Adsorbed species may diffuse to...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003971
EISBN: 978-1-62708-185-6
... new processes, the increasing utilization of thermomechanical processing (TMP) for both ferrous and nonferrous alloys, and the widespread application of computer-based process models. Although relatively few new materials have reached the level of mass production during the last decade, the processing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
...-type, and multiple-ram). It further discusses the technologies used in the design of dies, terminology, and materials selection for dies for the most common hot-forging processes, particularly those using vertical presses, hammers, and horizontal forging machines. A brief section is included on...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005427
EISBN: 978-1-62708-196-2
.... Simulation of manufacturing processes is also conducted using FEA or CFD, and these simulation tools provide a means for determining whether the component is manufacturable and for optimizing the manufacturing process to reduce the manufacturing time or improve the quality of a component. The physical...