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表面粗糙度

2014-12-31 20:27:12| 分类：默认分类 | 标签： |举报 |字号大中小订阅

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一、原理机械加工表面质量，是指零件在机械加工后被加工面的微观不平度，也叫粗糙度，以Ra\Rz\Ry三种代号加数字来表示，机械图纸中都会有相应的表面质量要求，一般是工件表面粗糙度Ra<0 um Ra RaRaRa RaRaRa RaRaRa RaRaRa grinding RaLyiL yi---------------------- GBTFGBTRa Ra Ra Y Rz grinding Ry RaRa Ra="1/l" tYxdxRa="1/n" YiY grinding Ra GBT grinding RaRaFM RzFM grinding RRZRyR hH RZRy RzRy surface roughness Ra RaLgrinding ISOGB-GB- br>

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