Research on Ultra-Precision Process of STAVAX ESR

Abstract:

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STAVAX ESR(S-136)is a type of high stainless steel, used in precision mould widely . It has fine anticorrosion, polishing-alike, wearable,good process capacity and quench stability. To obtain the smooth surface of STAVAX ESR, the material removal mechanism in the paper is discussed. The experiment is processed on the ultra-precision plane polishing machine (Nanopoli-100). The experiment processes are as follows. Rough lapping and Ultra-precision lapping: the material of lapping pads is cast iron. #1000Al203 (10wt%) abrasive powders are used in rough lapping. Finally, surface roughness is 62nm. In ultra-precision lapping, abrasive powders are for #4000Al203(10wt%). Removal rate is 1nm with linear velocity 8.6m/min, pressure 3.65MPa. After 4000 rounds, surface roughness is 35nm.Ultra precision polishing: The super smooth surfaces of STAVAX ESR(S-136)with 5nm roughness have been obtained by adopting SiO2(> 30wt%) slurry and soft tin polisher in the experiment.

Info:

Periodical:

Materials Science Forum (Volumes 471-472)

Edited by:

Xing Ai, Jianfeng Li and Chuanzhen Huang

Pages:

63-66

DOI:

10.4028/www.scientific.net/MSF.471-472.63

Citation:

J. L. Yuan et al., "Research on Ultra-Precision Process of STAVAX ESR", Materials Science Forum, Vols. 471-472, pp. 63-66, 2004

Online since:

December 2004

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$35.00

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