Effect of cold drawing on subsequent surface strain path and ductility during upsetting
Mills, Steven C. 2002, Effect of cold drawing on subsequent surface strain path and ductility during upsetting, M.Eng. thesis, School of Engineering and Technology, Deakin University.
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Effect of cold drawing on subsequent surface strain path and ductility during upsetting
Cold drawing is a process that sizes and smooths the surface of steel before it is cold headed to produce bolts. The effect of the changes in the mechanical properties due to cold drawing on the surface strain and ductility during the upsetting process was analysed showing that the stress and strain state can be more readily altered by changes in the process conditions (friction and height-to-diameter ratio) to cause greater increase in the failure strains than can be achieved by pre-drawing.
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