Bending strength analysis of micro WC-shaft manufactured by micro electro-discharge machining

被引：0

作者：

Yan, Biing Hwa ^{[1
]}

Huang, Sheng Ho ^{[1
]}

Huang, Fuang Yuan ^{[1
]}

机构：

[1] Department of Mechanical Engineering, National Central University, Chung-Li, 32054, Taiwan

来源：

| 1600年 / Springer-Verlag London Ltd卷 / 29期

关键词：

Micro electro-discharge machining (micro-EDM) is a critical technology to fabricate high aspect ratio 3D micro-components. However; the surfaces of micro-components manufactured by micro-EDM will exhibit micro-cracks to produce notch effects; and lead to stress concentrate and reduction of fatigue strength. This paper performs micro-bending tests to investigate the influence of various roughness and size on the bending fracture strength of micro WC-shafts manufactured by micro-EDM. The experimental results indicate that the surface roughness; axial surface area; volume; and length of the specimen will affect its bending fracture strength. For specimens with the same size; the mean bending fracture strength decreases as the surface roughness increases; and the bending fracture probability of the specimens also increases (roughness effect). For specimens with the same roughness; reducing the length or axial surface area will increase the mean bending fracture strength; and reduces the bending fracture probability (size effect);

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摘要：

Journal article (JA)

引用

页码：7 / 8

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