Paper Title:
The Characteristics of Surface Residual Stresses by Plane Grinding Invar and the Effects of Them on Structural Stability
  Abstract

Invar 36 alloy is widely used in manufacturing instruments because of its minimal thermal expansion coefficient. As an important material for the components of precision or super-precision instruments, the process methods for Invar and the structure stability after its machining is necessary. In this paper, the residual stresses of the Invar samples after plane grinding were measured. The experimental results indicate that clear tension stress exists in the surface of Invar alloy along the grinding direction, while, on the cross direction, the states of surface residual stresses are complicated and affected by the parameters of grinding. A typical disk model has been calculated and analyzed by Finite Element Method (FEM), and the deformation caused by surface residual stress was presented. Finally, the effect of grinding as final working procedure on the stability of Invar structure was estimated.

  Info
Periodical
Advanced Materials Research (Volumes 53-54)
Edited by
Shengqiang Yang, Shichun Yang and Hang Gao
Pages
293-298
DOI
10.4028/www.scientific.net/AMR.53-54.293
Citation
Y.P. Qiao, R. K. Kang, Z. J. Jin, D. M. Guo, "The Characteristics of Surface Residual Stresses by Plane Grinding Invar and the Effects of Them on Structural Stability", Advanced Materials Research, Vols. 53-54, pp. 293-298, 2008
Online since
July 2008
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$32.00
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