我厂采用L_(Y2)(硬铝合金)及L_(2CE)(焊料铝合金),作研磨器,以国产钻石研磨膏(精研用M1.5,粗研用M5)作为磨料修理卡尺和合金头的千分尺。经过几年的实践证明,铝合金研磨器的耐磨性好,不易凹心。由于硬度比铸铁研磨器低,表面易压入磨料,所以研磨时不易打滑。研磨后工件表面光洁度及平直度都比较高(光洁度可达▽_(12)～▽_(13))。这种研磨器具 I use L_ (Y2) (hard aluminum) and L_ (2CE) (solder aluminum alloy), as a grinder, with a domestic diamond grinding paste (refined with M1.5, crude research M5) as abrasive repair calipers and Alloy head micrometer. After several years of practice has proved that the abrasion resistance of aluminum grinder, not easy to depression. Because the hardness is lower than the cast iron grinder, the surface is easy to press into the abrasive, so it is hard to slip when grinding. After grinding the workpiece surface finish and flatness are higher (finish up ▽ _ (12) ~ ▽ _ (13)). This abrasive tool