鉄の塑性変形に伴う表面粗さの観察と波長の周波数分析

概要

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In the metal forming process, the roughening of the free surface of products is one of the most important problems. In order to clarify the relationship between wavelength and applied strain, uniaxial compressive load and tensile load were applied to iron specimens. A stylus instrument was used to measure the surface roughness at the same position on a specimen during plastic deformation. The maximum entropy method was employed for the spectrum analysis of the surface roughness curves. Photographs of the grains on the surface were taken with a scanning electron microscope. The results show that in the compression test, the primary wavelength of surface roughness becomes shorter in the longitudinal direction and longer in the transverse direction as the applied strain increases. The opposite results were obtained in the tensile test.
一般社団法人日本機械学会の論文
1993-08-25