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axial deformation

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Published: 01 August 2012
Fig. 8.3 Five deformation zones in deep drawing; Zone A-C: the flange (axial compression, radial tension, circumferential compression); Zone C-D: The die corner radius (bending and friction); Zone D-E: The wall of the cup (tension and potential fracture); Zone E-F: The punch corner radius More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980565
EISBN: 978-1-62708-342-3
... Stem load b Heat penetration coef cient FSt min Maximum stem load bB Heat penetration coef cient for billet FF¯ UU Minimum stem load material Axial deformation load bR Heat penetration coef cient for con- FF VVSStt Constant deformation load during the tainer material F¯ VSt quasi-stationary...
Image
Published: 01 August 2005
Fig. 4.37 Butt joint loaded axially in tension. (a) A stress concentration exists at the periphery of the joint due to a difference in the Poisson’s ratios of the filler and of the components. (b) Stress distribution in the axial center of the joint. Deformation of joint surfaces More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980059
EISBN: 978-1-62708-342-3
... load F St can be assumed to consist of the sum of the axial load F M acting on the die, which is necessary for the deformation of the material being worked in the primary deformation zone, and the axial load F R required to overcome the friction between the billet and the container. From Eq...
Image
Published: 01 August 2018
Fig. 12.19 The orientation of the slip planes (SP) and the active slip directions (SD) when the material is subjected to axial tension (AT) will the define the anisotropy of the deformation, as shown in Fig. 12.20 . More
Image
Published: 01 August 2018
Fig. 12.40 Transverse cross section of a medium carbon steel bar axially compressed (vertical direction in the image). Cold deformation of ferrite and pearlite can be seen. Etchant: nital. More
Image
Published: 01 August 2005
Fig. 1.2 Cylindrical bar subjected to axial load. (a) Linear elongation along the loading direction. (b) Free body diagram. (c) Linear relationship between force and elastic deformation (or stress and elastic strain) More
Image
Published: 01 December 2006
Fig. 3.36 Principal representation of the variation of the axial compressive stress p x and the radial compressive stress p r in direct cold extrusion with lubrication without a shell. l 0 , upset billet length; s St , stem displacement; D 0 , container diam; D S , extrusion diam More
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630071
EISBN: 978-1-62708-270-9
... of the cross section—fractured in the transverse shear plane opposite the splined end. Because this piece was etched, the twisting deformation of the originally straight grain flow of the shaft can be seen. Compression Loading When the cylinder is loaded in axial compression (assuming no instability...
Image
Published: 01 August 2018
Fig. 12.20 Two limiting cases of anisotropy in plastic deformation, considering (for simplicity) a single active slip system, characterized by slip planes (SP) and slip directions (SD). When subjected to axial tension (AT) in (a) the material will undergo reduction of the width without any More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630055
EISBN: 978-1-62708-270-9
... to their original size and shape when unloaded, which is the definition of elastic, or temporary, deformation, usually referred to as deflection, as in springs. In certain parts, this deflection may cause interference with another part. Such interference is particularly common with gear teeth, which...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
..., and forging tolerances. Wear, plastic deformation processes, and laws of friction are introduced as a group of subjects that have been considered in the case studies. steel forgings crankshaft underfill tube bending spade bit trim tear upset forging failure analysis wear friction cold forging...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500179
EISBN: 978-1-62708-317-1
..., transition zone, and expansion zone ( Fig. 9.23 ) ( Ref 9.31 , 9.32 ). In the guiding zone, the workpiece and the die are in full contact, and material deformation is limited to wall thickening. However, the material is pushed into the deformation zone by means of axial cylinders. Most THF processes require...
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
... coefficients, and flow behavior determined in the isothermal hot tensile test. It also describes three often-overlapping stages of cavitation during tensile deformation, namely, cavity nucleation, growth of individual cavities, and cavity coalescence. cavitation deformation flow behavior Gleeble test...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040007
EISBN: 978-1-62708-300-3
... Abstract This chapter explains that the key to forging is understanding and controlling metal flow and influential factors such as tool geometry, the mechanics of interface friction, material characteristics, and thermal conditions in the deformation zone. It also reviews common forging...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870105
EISBN: 978-1-62708-344-7
... section area. However, a lessthan-ideal specimen design can result in failure at the stress-strain concentration points B in the fillet. Furthermore, the stress distribution in the center of the specimen may be nonuniform, especially when large plastic deformations are involved. Thus, few of the recent...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630281
EISBN: 978-1-62708-270-9
... to absorb energy when a notch, or stress concentration, is present. p pancake forging. Plastic deformation of a very ductile material under axial compressive forces between flat, parallel dies. The sides bulge outward, while the other surfaces become essentially flat and parallel. Paris equation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060155
EISBN: 978-1-62708-343-0
... the reversal of axial tension and compression strains of two fundamentally different deformation mechanisms (creep and plasticity), an obvious question arises as to how to treat a general state of multiaxiality, wherein tension and compression are not readily identifiable. The bulk of this chapter was first...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060001
EISBN: 978-1-62708-343-0
... of an axially deformed specimen, then the maximum resolved shear stress in either tension or compression would be nominally identical. While an axial specimen is in tension, there is a tensile stress normal to the 45° boundary, and the shearing process is easier as the atoms along the grain boundary are being...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.9781627083553
EISBN: 978-1-62708-355-3