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hot forging

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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: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040115
EISBN: 978-1-62708-300-3
..., and it determines the rate of production. The requirements of a given forging process must be compatible with the load, energy, time, and accuracy characteristics of a given forging machine. There are basically three types of presses: hydraulic, mechanical, and screw presses. These machines are used for hot...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040295
EISBN: 978-1-62708-300-3
... Abstract This chapter addresses the issue of die failures in hot and cold forging operations. It describes failure classifications, fatigue fracture and wear mechanisms, analytical wear models, and the various factors that limit die life. It also includes several case studies in which finite...
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Published: 01 September 2008
Fig. 35 Example of die failure in a hot forging die caused by coarse grain size and strong precipitation of proeutectoid carbides on austenite grain boundaries. (a) Aspect of the tool. (b) and (c) Microstructure showing the coarse grain size (approximately ASTM 4; expecte d ASTM 8 to 10 More
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Published: 01 September 2008
Fig. 40 Microstructures of hot forging punch made of DIN 1.2885. Etched with 4% nital for the same time in all microstructures More
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Published: 01 August 2018
Fig. 11.37 The effect of the degree of deformation during hot forging (measured as the ratio of transverse cross sections before and after hot forging) on the properties of a Ni-Cr steel produced through conventional ingot casting. Source: Ref 24 More
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Published: 01 February 2005
Fig. 7.6 Die lubrication process in warm and hot forging. [ Doege et al., 1996 ] More
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Published: 01 February 2005
Fig. 11.30 Schematic of the wedge-screw press drive for hot forging More
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Published: 01 February 2005
Fig. 16.13 Automotive component formed by forward/backward hot forging process [ Brucelle et al., 1999 ] More
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Published: 01 February 2005
Fig. 22.8 Heat-transfer coefficient and temperature changes in a typical hot forging operation (A, heated billet resting on lower die; B, contact time under pressure; C, forging removed from lower die; D, lubrication of die; E, dwell time with no billet on lower die before next cycle begins More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040257
EISBN: 978-1-62708-300-3
... Abstract This chapter discusses the processes of isothermal and hot-die forging and their use in producing aerospace components. It explains how isothermal forging was developed to provide a near-net shape component geometry and well-controlled microstructures and properties with accurate...
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Published: 01 February 2005
Fig. 16.22 (a) The deformation simulation of a hot forged gear with flash. (b) The volume fraction of martensite (dark is higher) in a steel gear after quenching [ Wu et al., 2001 ] More
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Published: 01 February 2005
Fig. 16.7 Comparisons of hot-die forging and mechanical press forging of an experimental part using process modeling More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
... cold forging or hot forging in terms of preforge factors and/or discontinuities generated by the forging process. Supporting topics that are discussed in the case studies include validity checks for buster and blocker design, lubrication and wear, mechanical surface phenomenon, forging process design...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040277
EISBN: 978-1-62708-300-3
... Abstract This chapter discusses the factors that affect die steel selection for hot forging, including material properties such as hardenability, heat and wear resistance, toughness, and resistance to plastic deformation and mechanical fatigue. It then describes the relative merits of various...
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Published: 01 September 2008
Fig. 2 Examples of hot work dies for (a) press forging and (b) die casting. Courtesy of Villares Metals More
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Published: 01 September 2008
Fig. 16 Typical state of strain in hot upset forging of steel showing fracture criteria in MSC superforge simulation More
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Published: 01 February 2005
Fig. 20.2 Comparison between conventional and hot-die forging of a Ti-6Al-4V structural part on the basis of raw material saved [ Shah, 1988 ] More
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Published: 01 February 2005
Fig. 20.15 Die setup for isothermal/hot-die forging with resistance heaters [ Antes, 1980 ] More
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Published: 01 February 2005
Fig. 20.16 Die setup for isothermal/hot-die forging with induction coils [ Prasad et al., 1969 ] More