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workability theory

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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
.... bulk forming process mechanical plasticity strain state stress state theoretical fracture criteria theoretical fracture models workability theory WORKABILITY, as described in previous articles, is not merely a property of a material but a characteristic of the material/process system. The...
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
... R.L. and Sellars C.M. , Analysis of Hot Tension Test Data to Obtain Stress-Strain Curves to High 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...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009003
EISBN: 978-1-62708-185-6
... discussed in “Workability Theory and Application in Bulk Forming Processes,” in this Handbook are a direct outgrowth of the previously mentioned concept of workability. The simplest and most widely used fracture criterion ( Ref 19 ) is not based on a micromechanical model of fracture but simply recognizes...
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
... Criterion for Cold Forging , J. Eng. Mater. Technol. (Trans. ASME) , Vol 95 , 1973 , p 213 – 218 32. Hoffmanner A.L. , The Use of Workability Test Results to Predict Processing Limits , Metal Forming: Interrelation between Theory and Practice , Hoffmanner A.L. , Ed., Plenum Press...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005181
EISBN: 978-1-62708-186-3
... R.E. , Lege D.J. , and Pourboghrat F. , Choi S.-H. , and Chu E. , Plane Stress Yield Function for Aluminum Alloy Sheets—Part I: Theory , Int. J. Plast., Vol 19 , 2003 , p 1297 – 1319 10.1016/S0749-6419(02)00019-0 2. Yoon J.W. , Barlat F. , Dick R.E...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009005
EISBN: 978-1-62708-185-6
... illustration of relative workability of cast metals and wrought and recrystallized metals at cold, warm, and hot working temperatures. The melting point (or solidus temperature) is denoted as MP c (cast metals) or MP w (wrought and recrystallized metals). Fig. 2 Specimens for the wedge test. (Top...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009011
EISBN: 978-1-62708-185-6
... Abstract This article discusses the equipment design, procedures, experimental considerations, and interpretation of the torsion tests used to establish workability. It describes the application of torsion testing to obtain flow-stress data and to gage fracture-controlled workability and flow...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009008
EISBN: 978-1-62708-185-6
... in the article, “Workability Theory and Application in Bulk Forming Processes” in this volume for a wide variety of materials and processes. Fig. 11 Comparison of strain paths and fracture locus lines A fracture criterion based on the linear relations between total surface strains at...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003089
EISBN: 978-1-62708-199-3
... limit of these processes is determined by the workability of the material. See the section “Fabricability” in this article. Each process has associated with it a range of shapes that can be produced. Thus, the first decision in selecting a process is whether it is capable of producing the...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002455
EISBN: 978-1-62708-194-8
... Shabaik A.H. , A New Workability Criterion for Ductile Metals , J. Eng. Mater. Technol. (Trans. ASME) , Vol 108 , 1986 , p 245 – 249 10.1115/1.3225876 20. Kuhn H.A. , Workability Theory and Application in Bulk Forming Processes , Forming and Forging , Vol 14 , ASM Handbook...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009012
EISBN: 978-1-62708-185-6
... Abstract This article summarizes the types of hot working simulation tests such as hot tension, compression, and torsion testing used in the assessment of workability. It illustrates the use of hot torsion testing for the optimization of hot working processes. The article concludes with...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005295
EISBN: 978-1-62708-187-0
... Abstract This article discusses the methods, equipment, and theory for pouring, solidifying, and stripping steel ingots. It describes the two basic types of pouring methods: top pouring and bottom pouring. The equipment includes hot tops, ingot molds, and stools. The design of the ingot is...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003263
EISBN: 978-1-62708-176-4
... deformation of prismatic bars of circular cross-section and torsional response of prismatic bars of noncircular cross-section. It analyzes the elastic deformation, plastic deformation, and the effect of strain rate on plastic deformation. The article describes the theory of anisotropy in plastic torsion and...
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
... , Concurrent Engineering Approach to Materials Processing , Dwivedi S.N. , Paul A.J. , and Dax F. R. , Ed., TMS , 1992 , p 107 – 119 11. Kuhn H.A. , Workability Theory and Application in Bulk Forming Processes , Forming and Forging , Vol 14 , Metals Handbook , ASM...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005461
EISBN: 978-1-62708-196-2
... 7 , 1959 , p 750 28. Kuhn H.A. , Workability Theory and Application in Bulk Forming Processes , Handbook of Workability and Process Design , ASM International , 2003 , p 172 – 187 29. Kudo H. and Aoi K. , Effect of Compression Test Condition upon Fracturing of...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003989
EISBN: 978-1-62708-185-6
... direction of increasing workability. Fig. 15 Flow-stress difference in the α-β temperature regime between a condition A microstructure ( Fig. 14a ) and a condition B microstructure ( Fig. 14b ) Fig. 14 Microstructure of Ti-6Al-4V. (a) Condition A, consisting of acicular α colonies and...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003265
EISBN: 978-1-62708-176-4
.... (Trans. ASME) , Vol 95 , 1973 , p 213 – 218 11. Kuhn H.A. , Workability Theory and Application in Bulk Forming Processes , Forming and Forging , Vol 14 , ASM Handbook , ASM International , 1988 , p 389 – 391 12. Jonas J.J. and Luton M.J. , Flow Softening at...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005431
EISBN: 978-1-62708-196-2
.... , Foundations of Solid Mechanics , Mechanics and Materials: Fundamentals and Linkages , Meyers M.A. , Armstrong R.W. , and Kichner H. , Ed., John Wiley & Sons , 1999 5. Cockcroft M.G. and Latham D.J. , Ductility and Workability of Metals , J. Inst. Met. , Vol 96...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003988
EISBN: 978-1-62708-185-6
....) Fig. 22 Dimensions (in inches) of RBF test specimens Fig. 11 Effects of forging variables on the workability of porous preforms in hot forging. Source: Ref 58 Fig. 12 Workability limits at strain rate ( ε ˙ ) of 10/s for (a) 4620 sintered preforms and (b) 4640 sintered...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009002
EISBN: 978-1-62708-185-6
... PROCESS DESIGN, a compromise is often necessary in the selection of conditions that give optimal workability versus those that yield a desired microstructure. The term workability is frequently applied in connection with the prevention of cracking or defects during working and the determination of flow...