平面研(yan)磨手工研(yan)磨及機械研(yan)磨的區別
手工研磨(mo)一(yi)般采用(yong)一(yi)級(ji)平(ping)板(ban)(ban)(ban),材質為(wei)(wei)高(gao)碳鑄鐵材料(liao),平(ping)板(ban)(ban)(ban)一(yi)般為(wei)(wei)三個一(yi)組(zu),一(yi)級(ji)平(ping)板(ban)(ban)(ban)的平(ping)面度允許偏差見表9-31。趕砂工作是將研磨(mo)平(ping)板(ban)(ban)(ban)上已用(yong)過失去切削作用(yong)......