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Rolling and annealing of copper block.
Member rating: No Rating | Words: | Submitted: Mon Aug 18 2003
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Title: Rolling and annealing of copper block. Abstract: The hardness of a soft copper block was tested at City University, of increasing lengths and decreasing thickness after undergoing cold rolling. After the maximum length was obtained the copper a cut section was annealed to different temperatures. From the experiment it was found that as the block got thinner and longer the hardness increased. The experiment also shows that when the long copper section was annealed as the temperature was increased the breaking or tensile stress decreased. Introduction: The purpose of this Lab exercise is to investigate the effects of cold working and of annealing on the crystal structure and the hardness of a sample of copper (dimensioned at 50x25x5mm). The experiment is designed to allow us to see first hand the changes that take place in the material as it is subjected to varying degrees of work (deformation) and heat treatment. Cold working...
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