1-20 of 351 Search Results for

cold plastic deformation

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040017
EISBN: 978-1-62708-300-3
... Abstract This chapter discusses the role of plastic deformation in forging and the effect of strain and strain rate on metal flow. It demonstrates the use of stress tensors and shows how metal flow can be represented qualitatively by the displacement of volume elements and quantitatively...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040051
EISBN: 978-1-62708-300-3
.... It then explains how to determine the onset of yielding, which corresponds to the start of plastic deformation and the flow of metal within the workpiece. The chapter then goes on to present two important yield criteria, one based on shear stress (Tresca criterion), the other on distortion energy (von Mises...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240017
EISBN: 978-1-62708-251-8
... , while that for a cold-worked metal may run as high as 10 8 to 10 11 cm −2 . This continual increase in resistance to plastic deformation is known as work hardening, cold working, or strain hardening. Work hardening results in a simultaneous increase in strength and a decrease in ductility. Since...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400053
EISBN: 978-1-62708-316-4
... and how hardening laws are used to predict strain-hardening behaviors. elastic strain levy-mises equations plastic deformation sheet metal forming strain hardening strain rate WHEN A MATERIAL is deformed, two types of deformation occur: elastic and plastic. Elastic deformation is always...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740103
EISBN: 978-1-62708-308-9
... results in a deformed, unrecrystallized grain structure with the grains elongated in the direction of metal flow. An empirical relationship between flow stress and plastic strain during cold working is: (Eq 2) σ f = K ε n where σ f is the flow stress, K is the strength...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240279
EISBN: 978-1-62708-251-8
... the grain structure due to cold working is unrecrystallized and retains the effects of the working operation. Bulk deformation changes the shape of a workpiece by plastic deformation through the application of compressive forces, as for the typical bulk deformation processes in Fig. 16.1 . In addition...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480095
EISBN: 978-1-62708-318-8
... neocrystallization recrystallization strain hardening titanium alloys NEARLY ALL METALS AND METAL ALLOYS can be strengthened by cold working, and titanium and its alloys are no exception ( Ref 5.1 ). The mode of plastic deformation that occurs varies considerably among different metals and metal alloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410213
EISBN: 978-1-62708-265-5
... propagated across the gage length of a sheet tensile specimen. The plastic strain associated with the Lüders band, and the absence of strain where the Lüders band has not propagated, are also illustrated. Source: Ref 11.20 On cold-formed parts subjected to various amounts of deformation, some...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
.... , The Plastic Distortion of Metals , Trans. R. Soc. (London) A , Vol 230 , 1931 p 323 – 362 10.1098/rsta.1932.0009 2.8. Reiner M. , Deformation, Strain and Flow: An Elementary Introduction to Rheology , H.K. Lewis & Co. , 1960 , p 97 2.9. Lipson C. , Why Machine Parts Fail...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220403
EISBN: 978-1-62708-259-4
... and the factors that influence them. It explains how cold working increases dislocation density and how that affects the stress-strain characteristics of steel, particularly the onset of deformation. It describes the effects of deformation on ferrite, austenite, cementite, and pearlite, and how to optimize...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040237
EISBN: 978-1-62708-300-3
...-plastic analyses. In the elastic-plastic simulation, material is modeled as deforming elastic-plastically. Thus, the results are given for not only the plastic deformation but also for elastic deformation such as residual stresses and springback. Rigid-plastic simulation assumes material to deform only...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460017
EISBN: 978-1-62708-285-3
... COLD SPRAYING, or kinetic spraying, generally powder particles accelerate in a supersonic gas stream and deposit on surfaces to produce dense coatings or bulk parts. The basic mechanism for adherence of metallic particles is their plastic deformation upon impact, which creates sufficient heat for solid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460067
EISBN: 978-1-62708-285-3
... of deformation plays the key role in accommodation of particles in a cold-sprayed deposit. Therefore, almost all models of particle impact and bonding start with the analysis of plastic deformation of particles during impact and bonding. This is often pursued through continuum-level models of deformation, which...
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.t51040295
EISBN: 978-1-62708-300-3
... Coating and Scaling of Raw Parts on Forging Wear, ” No. 315 , IFUM, University of Hannover , 1993 . [Matsuda, 2002] Matsuda T. , “ Improvement of Tool Life in Cold Forging, ” Advanced Technology of Plasticity , Vol 1 , 2002 , p 73 – 78 . [Nagao et al., 1994] Nagao Y. , Knoerr...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460121
EISBN: 978-1-62708-285-3
... by the as-sprayed as well as the heat treated coatings ( Ref 5.4 , 5.19 – 5.24 ). Due to the severe plastic deformation that takes place during the high-pressure cold spray process, the characteristic diffraction pattern in the as-sprayed condition is usually one with broad peaks, as shown in Fig. 5.4...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040211
EISBN: 978-1-62708-300-3
.... Cold extrusion is a special type of forging process wherein the cold metal flows plastically under compressive forces into a variety of shapes. These shapes are usually axisymmetric with relatively small nonsymmetrical features, and, unlike impression-die forging (see Chapter 14, “Process Design...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460001
EISBN: 978-1-62708-285-3
... to deform the incoming solid particles. For example, attempts to cold spray metal directly onto a relatively soft substrate, for example, a plastic or a fiber-reinforced composite, will most likely result in significant damage to the substrate because the substrate is simply not strong enough to withstand...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040115
EISBN: 978-1-62708-300-3
... disk applications. The hammer is an energy-restricted machine. During a working stroke, the deformation proceeds until the total kinetic energy is dissipated by plastic deformation of the material and by elastic deformation of the ram and the anvil when the die faces contact each other. Therefore...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460277
EISBN: 978-1-62708-285-3
... Plastic strain bend test Corrosion Unscribed ASTM B117 Scribed ASTM B117 Galvanic corrosion Accelerated corrosion ASTM G61 Crevice corrosion G78 Beach corrosion Most of the repair applications that have recently started using cold spray as an affordable repair technology...