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Keywords: plastic deformation
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Journal Articles
Article Type: Research-Article
J. Manuf. Sci. Eng. April 2019, 141(4): 041009.
Paper No: MANU-18-1659
Published Online: February 28, 2019
... that serve as a plastic deformation medium and a chemical precursor, respectively. Orthogonal cutting experiments under base oil lubrication demonstrated that the proposed treatment results in a reduction of cutting and thrust forces, as well as in a reduction of built-up edge formation. These effects...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. February 2012, 134(1): 011010.
Published Online: January 13, 2012
... to 660 °C, were reached in the regions around the punched holes, leading to melting and resolidification of the material. The total width of the thermally affected regions appeared to be larger at higher energy levels. The combination of heat generated by ohmic heating and by plastic deformation...
Journal Articles
Article Type: Guest Editorial
J. Manuf. Sci. Eng. December 2011, 133(6): 060301.
Published Online: December 27, 2011
... of electric current on perceived dislocation generation and dislocation motion through the lattice structure. Equal channel angular extrusion is used to induce severe plastic deformation into the material. On a similar subject, Mears’ group at Clemson University has presented a paper entitled “Factors...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. December 2011, 133(6): 061021.
Published Online: December 21, 2011
... the unloading simulation. In classic plasticity theory, the unloading of a material after plastic deformation is assumed to be linearly elastic with the stiffness equal to Young’s modulus. However, several experimental investigations have revealed that this is an incorrect assumption. The unloading...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. June 2011, 133(3): 031008.
Published Online: June 9, 2011
...William R. Longhurst; Alvin M. Strauss; George E. Cook Friction stir welding (FSW) is a solid state welding process that uses a rotating tool to plastically deform and then forge together materials. This process requires a large axial force to be maintained on the tool as the tool is plunged...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. December 2010, 132(6): 061017.
Published Online: December 21, 2010
... have been carried out to study the effects of nanoparticles integrated structures during the laser shock peening of aluminum alloys. The LSP experiment of aluminum samples with different particle densities was carried out. The effect of nanoparticle on shock wave propagation, plastic deformation...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. December 2010, 132(6): 061014.
Published Online: December 20, 2010
... forming has been developed, but it has been mostly focused on V type bending ( 12 13 ) rather than deep drawing ( 14 15 ) because the latter is far more complicated. In these researches, the aim is to obtain optimum plastic deformation properties, i.e., n value and plastic anisotropy coefficient r...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. December 2010, 132(6): 061009.
Published Online: November 10, 2010
...Chang Ye; Gary J. Cheng Laser shock induced plastic deformation has been used widely, such as laser shock peening (LSP), laser dynamic forming (LDF), and laser peen forming. These processes have been extensively studied both numerically and experimentally at room temperature. Recently, it is found...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. October 2010, 132(5): 051009.
Published Online: September 27, 2010
... of Speed and Scale on the Strain-Rate in a Zone of Intense Plastic Deformation ,” Proc. Inst. Mech. Eng. 0020-3483 , 184 , pp. 561 – 576 . Stevenson , M. G. , and Oxley , P. L. B. , 1970 , “ An Experimental Investigation of the Influence of Strain Rate and Temperature on the Flow...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. October 2010, 132(5): 051008.
Published Online: September 27, 2010
... constitutive law to reflect the severe plastic deformation encountered in the primary and the secondary deformation zones under high strains, strain rates, and temperatures. A critical literature review shows that the available methods to identify the material constitutive equation for the cutting process may...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. August 2010, 132(4): 041013.
Published Online: July 23, 2010
... to preserve the computational efficiency of inverse FEM, a pseudodeformation theory of plasticity based constitutive equation is proposed, which can well reflect the actual forming condition such as elastic/plastic deformation or loading/unloading condition. The above-mentioned improvements are implemented...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. August 2010, 132(4): 041006.
Published Online: July 22, 2010
... temperatures, the premolded component can experience a significant plastic deformation due to the thermal softening and the force associated with impingement of the melt flow front. In our previous work, we developed methods to inhibit the plastic deformation by supporting the ends of the mesoscale premolded...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. August 2010, 132(4): 041002.
Published Online: July 21, 2010
... imparts desired deformation while maintaining desired material behavior. Characterization of the residual stress field, plastic deformation, and phase transformation is carried out numerically and is then subsequently validated via experimental results. Figure 6 is a micrograph obtained via electron...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. August 2010, 132(4): 041003.
Published Online: July 21, 2010
...C. J. Luis Pérez; R. Luri Severe plastic deformation processes have a great deal of importance because of the improvement in mechanical properties of the processed parts as a consequence of the grain size reduction in the material due to the accumulation of deformation. One of the main severe...
Journal Articles
Article Type: Special Issue On Nanomanufacturing
J. Manuf. Sci. Eng. June 2010, 132(3): 030908.
Published Online: May 26, 2010
...C. Saldana; S. Swaminathan; T. L. Brown; W. Moscoso; J. B. Mann; W. D. Compton; S. Chandrasekar A class of deformation processing applications based on the severe plastic deformation (SPD) inherent to chip formation in machining is described. The SPD can be controlled, in situ, to access a range...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. August 2009, 131(4): 041014.
Published Online: July 15, 2009
... simulation is shown in Fig. 9 . It indicates that the magnitude of GND is about 1.4 × 10 14   m − 2 , which is almost twice of the experimental result. This is due to the fact that the plastic deformation size predicted by FEM is only half of the experimental result but the magnitudes...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. June 2009, 131(3): 031016.
Published Online: May 29, 2009
...B. Aour; F. Zaïri; M. Naït-Abdelaziz; J. M. Gloaguen; J. M. Lefebvre Equal channel angular extrusion (ECAE) is a relatively novel forming process to modify microstructure via severe plastic deformation without modification of the sample cross section. In this study, an optimized design of die...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. December 2008, 130(6): 061001.
Published Online: October 9, 2008
... lightweight structures magnesium alloys plastic deformation presses pressing sheet materials sheet metal processing weight control aluminum magnesium non-isothermal deep drawing warm forming process optimization servo press One of the major goals of engineering design...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. October 2008, 130(5): 051006.
Published Online: August 14, 2008
...R. Luri; C. J. Luis Pérez Equal channel angular extrusion (ECAE) or pressing is a process used to introduce severe plastic deformations to processed materials with the aim of improving their mechanical properties by reducing the grain size. At present, there are no analytical studies that have...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. February 2008, 130(1): 011008.
Published Online: February 6, 2008
...Gary J. Cheng; M. Cai; Daniel Pirzada; Maxime J.-F. Guinel; M. Grant Norton The response of solid to shock compression has been an interesting topic for more than a century. The present work is the first attempt to experimentally show that plastic deformation can be generated in brittle materials...