Abrasive polishing apparatus

专利名称：Abrasive polishing apparatus

发明人：James Randall Gilmore,Lawrence J. Rhoades申请号：US09929614申请日：20010814

公开号：US20020009956A1公开日：20020124

专利附图：

摘要：The present invention is based on the practice of abrasive machining with nosealed working chamber by the employment of a visco-elastic abrasive medium, behavingpredominantly as an elastic solid at the applied strain of the orbital working motion, andapplying orbital or other relative working motion to produce strain rates which bring the

medium into a predominantly elastic deformation and often near, but not to exceed, thecompressive stress limit at the strain rate employed. The preferred visco-elastic abrasivemedium is a rheopectic poly(boro-siloxane) filled with viscosity increasing stiffeningagents and high loadings of the abrasive of choice and relatively minor amounts ofplasticizers. The system is operated in an open chamber under applied strain rates suchthat at least about 50%, particularly about to 99%, and preferably about 80 to 95%, ofthe deflection of the medium tinder the conditions of operation occurs by elasticdeformation and is elastically recovered, and less than 50%, particularly about 1 to 50%,preferably about 5 to 20%, of the deflection of the medium occurs by fluid or plasticflow.

申请人：GILMORE JAMES RANDALL,RHOADES LAWRENCE J.

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