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Abstract: The mechanism analysis of micro-convex manufactured by
larser-textured and experimental study on controlling of larser
parameters are carried out, based on tribology design for reasonable
surface topography on cold rolling steel sheet during punching. It is
indicated that the micro-convex can be obtained when the import energy
of laser is between 33～ 75 kW/cm2, the distance far from focus is +0.10～+0.15
mm, frequence of scan is 5 Hz, duration is 0.5 ms accompanying with
powergain. This work laid foundation of study on the topography
duplication during skin pass and on performance of cold rolling steel
sheet with regular and smooth ding during punching. cold rolling steel
sheet with regular and smooth ding
Key words: Micro-convex Surface topography Larser-textured
CLC No: TH117
国家自然科学基金资助项目(59875046).
Received 20020805, received in revised form 20030315
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