Anisotropy research of ultra-precision machining on KDP crystal

Wensheng Zhang; Yongzhi Cao; Jinghe Wang; Yan Gao; Ming Zhou

doi:10.1117/12.866052

6 October 2010 Anisotropy research of ultra-precision machining on KDP crystal

Wensheng Zhang, Yongzhi Cao, Jinghe Wang, Yan Gao, Ming Zhou

Proceedings Volume 7655, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 76552U (2010) https://doi.org/10.1117/12.866052
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

Studying the anisotropy of the KDP crystal processing in theory and experiment, the results had shown that the surface mechanical properties and surface roughness of ultra-precision machining KDP crystal shown a strong anisotropic properties, and concluded that: 1. Applicating the elasticity and crystal physics theory, calculated the elastic modulus and shear modulus on the (100) crystal plane of KDP crystal, it showed that they both exert anisotropic properties and cyclical fluctuations, and four periods fluctuations in a cycle. 2. Through the experiment of ultra-precision machining and mechanical characteristics, it was concluded that elastic modulus, hardness, residual stress and surface roughness which are on the (100) crystal plane of KDP crystal all showed anisotropic properties, and the variation is consistent with the theoretical calculation. The study on the anisotropy of KDP crystal has important theoretical and practical significance on improving the surface quality and ultra-precision machining removal mechanism.

Citation Download Citation

Wensheng Zhang, Yongzhi Cao, Jinghe Wang, Yan Gao, and Ming Zhou "Anisotropy research of ultra-precision machining on KDP crystal", Proc. SPIE 7655, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 76552U (6 October 2010); https://doi.org/10.1117/12.866052

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