Abstract
Dies and moulds used in the fabrication of metal, glass and plastic products require a high quality surface finish in terms of both appearance and integrity. Current manual polishing methods of surface finishing are time consuming and expensive. Consequently, a reduction in operator input and processing time has the potential to significantly reduce the cost of the finished mould. An ultrasonically energised polishing process, suitable for the polishing of complex dies and moulds has been successfully developed and patented. The process is based upon the combination of the two ‘non-traditional’ techniques of abrasive flow machining and ultrasonic machining. It has proved to be capable of improving surface finishes by factors of up to 10:1. This paper describes the development of the process and reports results achieved.
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