Investigation on the Influence of Machine Tool Dynamics on the Wavefront Gradient of KH2PO4 Crystals

被引：13

作者：

Chen, Wanqun ^{[1
]}

Liang, Yingchun ^{[1
]}

Sun, Yazhou ^{[1
]}

Lu, Lihua ^{[1
]}

机构：

[1] Harbin Inst Technol, Ctr Precis Engn, Harbin 150001, Peoples R China

来源：

JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME | 2014年 / 136卷 / 05期

关键词：

wavefront; dynamic vibration; ultra precision machining; NATIONAL-IGNITION-FACILITY;

D O I：

10.1115/1.4028091

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The root mean square gradient (GRMS) is a key parameter for KH2PO4 crystal of low-frequency wavefront, which affects the focusing performance in the inertial confinement fusion (ICF) system. The large wavelength waviness on the machined surface has significant influence on the GRMS. In this paper, the influence of the large wavelength waviness on the GRMS and the main sources resulting in the large scale ripples are analyzed based on dynamics analysis of the machine tool. The dynamic performance of machine tool is optimized and the reasonable dynamic stiffness region is obtained. Furthermore, the machined and the tested results validate the usefulness of the theoretical analysis.

引用

页数：6

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