Optical Properties And Thermal Stability Of Single-Point Diamond-Machined Aluminum Alloys

A. A. Ogloza; D. L. Decker; P C Archibald; D. A. O'Connor; E. R. Bueltmann

doi:10.1117/12.948069

29 January 1989 Optical Properties And Thermal Stability Of Single-Point Diamond-Machined Aluminum Alloys

A. A. Ogloza, D. L. Decker, P C Archibald, D. A. O'Connor, E. R. Bueltmann

Proceedings Volume 0966, Advances in Fabrication and Metrology for Optics and Large Optics; (1989) https://doi.org/10.1117/12.948069
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

This paper presents the results of diamond-turned surfaces of a wide range of aluminum alloys. The alloys machined included a sand-cast A201 alloy manufactured by Specialty Aluminum Inc., conventionally extruded plate alloys 2024, 3003, 5052, 6061, 7075, and for comparison as a best and worst case possible a high-purity aluminum single crystal, and tooling plate. The surfaces were obtained by diamond single-point machining using an interferometrically controlled two-axis, air-bearing lathe. The effect of tool-rake angle and machining fluid on surface quality is examined. Surface characterization was performed by Nomarski microscopy and noncontact optical surface profilometry. The optical properties measured included absolute reflectance at 3.8 μm, total integrated scatter at 752.5 nm, and bidirectional reflection distribution function measurements at 632.8 nm. The dimensional stability of the aluminum alloys subject to thermal cycling is examined.

Citation Download Citation

A. A. Ogloza, D. L. Decker, P C Archibald, D. A. O'Connor, and E. R. Bueltmann "Optical Properties And Thermal Stability Of Single-Point Diamond-Machined Aluminum Alloys", Proc. SPIE 0966, Advances in Fabrication and Metrology for Optics and Large Optics, (29 January 1989); https://doi.org/10.1117/12.948069

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