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heat source models

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500133
EISBN: 978-1-62708-317-1
... in hot stamping ( Ref 7.10 ). Fig. 7.10 Schematic of testing machine used to determine friction in hot stamping. Source: Ref 7.10 The 22MnB5 sheet material is heated in the infrared furnace to its austenitization temperature under inert gas atmosphere. One end of the strip is clamped...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410487
EISBN: 978-1-62708-265-5
... heat treatments designed to minimize undesirable residual stress, quench cracking, and distortion. Some comments and references to modeling of residual stress and distortion conclude the chapter. Origins of Distortion Distortion of a part may be classified as size distortion or shape distortion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110196
EISBN: 978-1-62708-247-1
..., and to a lesser extent, polysilicon elements and highly doped substrate areas. The laser modifies the electrical properties of the heated medium, namely its resistivity. This change of resistivity alters the current when using a constant voltage source, or the voltage when using a constant current source...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460067
EISBN: 978-1-62708-285-3
... temperature There are additional modeling activities that are relevant to cold spray research but are aimed at problems different from the aforementioned objectives. Examples include modeling of substrate heating and buildup of residual stresses in cold spraying ( Ref 3.6 ). This chapter focuses...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500051
EISBN: 978-1-62708-317-1
... potential sources of failures; and improving part quality. Simulations can be effectively performed at various stages of design to support decision-making. 3.2 Commercial Codes for Forming Simulations The basic concept of the finite-element method (FEM) is one of discretization. The model...
Image
Published: 01 December 2016
Fig. 1.33 Model of the (αAl + Si) eutectic solidification in the cast part. (a) Growth of the zone of the eutectic columnar cells from wall to the center. Both main and local heat flows are opposite to the growth direction. Unmodified alloy. (b) Growth of the zone of the equiaxed eutectic More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870201
EISBN: 978-1-62708-314-0
... Abstract This chapter provides an overview of the tools and techniques, as well as some of the underlying theory, that have proven useful for process modeling and simulation. It begins by presenting the framework of a thermoset cure model that accounts for kinetics, viscosity, heat transfer...
Image
Published: 01 August 2015
Fig. 10.26 Models of power density on continuous bar heating. Power density and temperature profiles of a bar at different positions in an in-line induction heater. Source: Ref 11 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280365
EISBN: 978-1-62708-267-9
.... , Computer-Aided Development of an Investment Casting Process , J. Met. , Vol 45 ( No. 10 ), 1993 , p 29 – 32 10.1007/BF03222457 • Ramakrishnan R.I. and Howson T.E. , Modeling the Heat Treatment of Superalloys , J. Met. , Vol 44 ( No. 6 ), 1992 , p 29 – 32 10.1007/BF03222251...
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Published: 30 April 2020
Fig. 7.39 Model calculations of the critical heating rate in second-stage binder removal versus particle size for three solids loadings. The binder is polystyrene binder. Roughly 50 calculation parameters are required for these solutions. Source: Song et al. ( Ref 12 ) More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500157
EISBN: 978-1-62708-317-1
..., and only BHF was estimated through finite-element analysis. Maximum pot pressure was limited to 100 MPa (15 ksi) due to limitations in die design. Fig. 8.21 Schematic of finite-element model for sheet hydroforming with punch process of a trunk lid-outer. Source: Ref 8.8 Results...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420263
EISBN: 978-1-62708-310-2
... consisting of eight-unit cells. Source: Ref 13.1 Dilute Solution Models There are a number of areas in materials processing where low levels of alloying are important, for example, in refining and some age-hardening processes. In such cases, it is possible to deal with solution phases by dilute...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050281
EISBN: 978-1-62708-311-9
... that the process has been designed properly. A Quality Induction Heat-Treating System The elements of a quality induction heat treating system depend on the application and the system being used. Table 14.1 shows a model of the elements of a quality induction-hardening system that includes machine design...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260029
EISBN: 978-1-62708-336-2
... Abstract This chapter provides an overview of the thermodynamics of extrusion. It begins by presenting a thermodynamic model of the extrusion process expressed in the form of finite difference equations. It then explains how the model accounts for multiple sources of heat generation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500289
EISBN: 978-1-62708-317-1
... crimping. (b) After crimping. (c) Finite-element model of crimping. Source: Ref 14.20 , 14.21 Traditionally, the design of crimping operations has relied on experience and costly trial-and-error experiments. However, some studies ( Ref 14.20 , 14.21 ) discuss the application of the finite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130001
EISBN: 978-1-62708-284-6
... the performance of the design process of a component. A heat-transfer model, coupling with a phase transformation model, a thermomechanical model, and a thermochemical model, is also considered. The chapter further provides information on the failure aspects of and heat treatment procedures applied to welded...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060209
EISBN: 978-1-62708-355-3
...) for 2 h and then water quenched prior to machining. Specimens were heated to 1120 °C (2050 °F), held for 5 min, cooled to test temperature and held for 10 s before being tested at a nominal strain rate of 20 s –1 (crosshead speed 5 cm/s; jaw spacing, 2.5 cm). Source: Ref 14 Isothermal Hot...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500083
EISBN: 978-1-62708-317-1
...–500 °F) Heating method Convection heating Source: Ref 5.2 Aluminum 5182-O tensile test data Table 5.2 Aluminum 5182-O tensile test data Material Al 5182-O (Mg, 4.51%; Fe, 0.2%; Mn, 0.3%; Si, 0.1%; Cu, 0.04%; Cr, 0.04%; Zn, 0.01%) Test procedure Uniaxial tension tests...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090349
EISBN: 978-1-62708-266-2
... water cleanup, residual heat removal, control-rod return lines, and isolation condenser lines have also been affected. A schematic of a recirculation piping system representative of BWR models 3 to 6 is shown in Fig. 15.1 . Piping systems in a typical BWR may have 150 to 200 welded joints, depending...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140071
EISBN: 978-1-62708-264-8
... cause a grain-boundary drag effect and inhibit grain growth. Source: Ref 8.7 Summary of the Major Ideas in Chapter 8 The grains of steel (first discussed with Fig. 1.2 ) have three-dimensional shapes that can be modeled by soap bubbles, as shown in Fig. 8.1(a) . Similarly...