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Book Chapter

By S.L. Semiatin
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
.... This Volume presents the state-of-the-art in bulk-metalworking processes. A companion volume ( ASM Handbook , Volume 14B, Metalworking: Sheet Forming ) describes the state-of-the-art in sheet-forming processes. Various major sections of this Volume deal with descriptions of specific processes, selection...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... tests, such as the tension test, ring compression test, plane-strain compression test, bend test, indentation test, and forgeability test. It concludes with information on the role of the finite-element modeling software used in workability analysis. bend test bulk forming processes cracking...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009004
EISBN: 978-1-62708-185-6
... Abstract This article focuses on the effects of mechanical plasticity on workability; that is, process control of localized stress and strain conditions to enhance workability. It describes the nature of local stress and strain states in bulk forming processes, leading to a classification...
Image
Published: 01 January 2002
Fig. 36 Schematic workability diagrams for bulk forming processes. Strain path (a) would lead to failure for material A. Both strain paths (a and b) can be used for the successful forming of material B. More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004021
EISBN: 978-1-62708-185-6
... Abstract This article provides a summary of the overall development of the finite element method (FEM) and its contribution to the materials forming industry. It presents an overview of FEM methodologies and applications in the order of their usage in typical manufacturing (bulk forming process...
Book Chapter

By S.L. Semiatin
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005100
EISBN: 978-1-62708-186-3
..., Metalworking: Bulk Forming , 2005) describes the state of the art in bulk-forming processes. Various major sections of this Volume deal with descriptions of specific processes, selection of equipment and die materials, forming practice for specific alloys, and various aspects of process design and control...
Book Chapter

By Dan Zhao
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003322
EISBN: 978-1-62708-176-4
... Abstract Forming processes can be divided into three major categories: bulk forming, sheet-metal forming, and semisolid forming and polymer extrusion. This article introduces each process category with a description of the constitutive models. It outlines the required properties for process...
Book Chapter

By B. Lynn Ferguson
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002485
EISBN: 978-1-62708-194-8
... to achieve tight control of dimensions for mass production, and typically some net surfaces can be achieved. While the goal is to achieve a net shape, it is rare that a totally net shape is produced by bulk-deformation processes, and some machining is typical to produce a usable part. Sheet-forming processes...
Book Chapter

By Stéphane Guillard
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004025
EISBN: 978-1-62708-185-6
... properties nickel-base superalloys specific heat steel thermal conductivity thermal diffusivity thermophysical properties titanium alloys NUMERICAL PROCESS MODELING has become, since the 1990s, the tool of choice to design or optimize bulk-forming processes. This has been made possible during...
Book Chapter

Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001032
EISBN: 978-1-62708-161-0
... the distinction between bulk formability and sheet formability, it may be useful to compare and contrast the types of deformation that occur during typical bulk and sheet forming processes. In both processes, the surfaces of the deforming metal are in contact with forming tools, and friction may have a major...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005539
EISBN: 978-1-62708-197-9
... model. The article also covers material fracture and die stress analysis and reviews optimization of the design of forming processes. bulk forming carbon diffusion model cold forming deformation deformation model diffusion finite element method forging dies heat transfer properties heat...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004022
EISBN: 978-1-62708-185-6
... invaluable insight into bulk-forming processes such as forging, extrusion, rolling, ring rolling, drawing, and cogging, only rarely can it produce an optimal design in the first attempt. A reincarnated legacy design can inherit a mixed bag of pluses and minuses. However, whether the past pluses and minuses...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003034
EISBN: 978-1-62708-200-6
..., and chop to length. Prepreg fabric can also be diced or chopped, with fabric used as the reinforcement. The resultant fabric is in a macerated form. Molding Methods Bulk molding compounds are processed by compression, transfer, and injection molding. Compression molding is used for large parts...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... of metalworking operations that can be roughly divided into bulk-working operations and sheet-forming operations ( Ref 1 ). The general distinction here is that bulk working imposes material flow in all directions, while sheet-forming operations are typically limited to two-dimensional deformation. Metalworking...
Book Chapter

By George E. Dieter
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009007
EISBN: 978-1-62708-185-6
... Strains , J. Test Eval. , Vol 13 , 1985 , p 39 – 45 10.1520/JTE10758J 28. Kuhn H.A. , Workability Theory and Application in Bulk Forming Processes , Forming and Forging , Vol 14 , ASM Hand-book , ASM International , 1988 , p 388 – 404 29. Dewhirst D.L. , Finite...
Book Chapter

By Jeganathan Karthikeyan
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005714
EISBN: 978-1-62708-171-9
... the particles onto the substrate and form a coating. This low-pressure cold spray process yields coatings of select ductile materials with acceptable coating characteristics, as compared to the high-pressure process which yields coatings of almost any material with highest coating qualities. Typical gas-jet...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006086
EISBN: 978-1-62708-175-7
... of metal powders, both as individual particles and in bulk form. This is important to ensure adequate control of powder production processes and to ensure the required properties for parts manufacturing are met. The Section “Metal Powder Characterization” in this Volume also features a series of articles...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001114
EISBN: 978-1-62708-162-7
... at the composition 2223 with a lower-transition 85 K phase forming at 2212. Partial substitution of lead for the bismuth appears to promote the development of the 2223, 110 K phase. The bismuth compound's major advantage over the Y-123 is its relative insensitivity to oxygen loss during processing, and it does...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005417
EISBN: 978-1-62708-196-2
... into the tools, measuring both the normal and the tangential contact stresses. These methods have been applied to measure interfacial stresses in several bulk forming processes ( Ref 17 , 18 , 19 , 20 , 21 , 22 ). A strain-gaged cantilever with its tip in the contact zone and its subsequent refinements...
Image
Published: 01 December 1998
Fig. 4 Schematic workability diagram for bulk deformation processes. Strain path (a) would lead to failure for material A. Both strain paths can be used for the successful forming of material B. Source: Ref 10 More