Precision Machining Based on Elastic Waves in solids

摘要

A grinding tool without kinematic pairs, of compactness and low cost, based on the defect that it is difficult to improve the precision of kinematic pairs of traditional grinding methods, is presented in the paper. The operating principle based on elastic waves was analyzed. The grinding tool would realize the ultra-precision machining theoretically and experimentally. Components of the prototype were manufactured, assembled, and tested for the grinding performance to validate the concepts of the precision machining and confirm the simulation results of modal and harmonic analysis. The test results show that the performance of the proposed grinding tool can meet the requirements of the precision grinding. It is confirmed that this prototype can realize the accurate ultra- low-stress and the removal of material under ultra-low-stress circumstance. The research is aimed at exploring new methods and new theories of ultra-precision surface machining and giving a new solution to the problem of ultra-precision surface machining.