There are usually rough machining and finishing for mould free-form surface in order to obtain ideal surface quality. The developed countries have been paid attention to the automation polishing technology of mould free-form surface since end of the eighties in last century. At present, it has been reported that 30-50% of the total time required to manufacture a mould or die is spent on finishing operations, which are mostly performed by the skilled workers employing traditional techniques. So the ef...
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