27 December 2001 Suitability of igneous rock for precision tooling
Author Affiliations +
Surface plates and blocking tools are commonly made of granite because of its good stability. But how stable is the granite, and which type of material is optimal? We have explored several materials and manufacturing processes for a 4-m aspheric reference surface that would serve as a tool for laying up composite optics. In this paper, we discuss the materials selection, stability to thermal and moisture effects, and parameters for processing the surface to give sub-micron accuracy and stability.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Martin J. Valente, Martin J. Valente, James H. Burge, James H. Burge, R. DiCenso, R. DiCenso, Abdel A. Abusafieh, Abdel A. Abusafieh, Dan R. Federico, Dan R. Federico, "Suitability of igneous rock for precision tooling", Proc. SPIE 4451, Optical Manufacturing and Testing IV, (27 December 2001); doi: 10.1117/12.453617; https://doi.org/10.1117/12.453617


Back to Top