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Cold extrusion provides manufacturing precision of pure copper arc parts, which requires a reduction in the forming force and elastic deformation. The functional models of constant strain rate and cosine velocity upsetting of pure copper were constructed using its thermomechanical simulation data. They were well verified by FEM, proven to be consistent with experimental stress-strain relations. The...
To reveal the compression deformation behavior of pure copper, the deformation characteristics of pure copper have been investigated by means of compression tests in the temperature range of 400–900°C and strain rate range of 0.001–1 s–1. The results show that the flow stress of pure copper increases with strain rate and decreasing deformation temperature, which is characterized by work-hardening,...
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