... alloys cold working drawing (mechanical) microhardness pipes shapes (structures) tensile testing Vickers hardness yield strength tube drawing variable thickness tube mechanical properties inhomogeneity anisotropy AA6063 It is well known that 6xxx series aluminium alloys...

... cold working ductile fracture forming processes hot working metalworking plasticity product design ductile fracture metal forming plasticity Reviews of ductile fracture criteria are provided, for example, in Refs. 1 2 3 . Upsetting is a typical test for determining parameters...

... of lightweight parts is still seen as a prominent, long-term, and cost-effective response to the fuel efficiency and emission reduction demands ( 3 ). warm hydroforming lightweight materials temperature condition formability aluminium cold working design of experiments finite element analysis...

... to predict the fracture limit in cold working. Using finite element analysis, the influence of die geometries on the void index was investigated and it was clarified that the extra-low-angle die is effective whatever reduction in area is adopted. Moreover, dies were designed to have the effect of suppressing...

...R. Spitsen; D. Kim; B. Flinn; M. Ramulu; E. T. Easterbrook The investigation on the use of a post-weld cold working process to improve fatigue strength of low carbon steel resistance spot welds is presented. The cold working process generates uniform and consistent large zones of compressive...

... Feb 2001 forming processes cold working extrusion finite element analysis drawing (mechanical) machine tools Spherical dies are becoming increasingly popular among suppliers of extruded parts because of the ease in subsequent secondary operations. Central bursts (also known...

... SCIENCE AND ENGINEERING . Manuscript received Sept. 1998; revised Feb. 2001. Associate Editor: R. Smelser. 01 Sept 1998 01 Feb 2001 extrusion cold working elastic deformation plastic deformation CAD manufacturing processes Several attempts have been made to analyze...