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Abstract: The influence of various shearing parameters on quality of
cracking surface is analyzed. The experiment research of high-speed
precision shearing technique is performed and better shearing quality is
gotten. On the above basis, the metallography analysis is performed and
the microcosmic structure on the cracking surface is researched. This
result shows that as compared with common cutting method the high-speed
shearing method can get better cracking quality. Some factors
influencing the bar shearing quality is discussed and the best shearing
parameters is determined, which is conducive to the application and
spreading of this new technology.
Key words: Metal material High-speed shears Precision shears
CLC No: TG315.3
国家自然科学基金(50475049)和山西省自然科学基金(20021069)资助项目.
Received 20040912, received in revised form 20041214
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