我厂用38CrA调质管料加工外圆为φ151毫米、内径为φ144.6毫米、长11毫米的零件,采用YT15切断刀。原用一般方法刃磨,刃磨一次只能切3～4件,刀具消耗大,工效低,班产只有20件左右。为此,我们进行了改进(附图),收到很好的效果。一次刃磨可以切60多件,班产可达100件左右。既节约了刀具,又提高了生产率。 I plant with 38CrA quenched and tempered material processing for the outer diameter of φ151 mm, diameter φ144.6 mm, 11 mm long parts, the use of YT15 cutting knife. The original method of sharpening, sharpening can only be cut 3 to 4, tool consumption, low efficiency, only 20 or so class. For this reason, we made improvements (with photos) and received very good results. A sharpening can cut more than 60 pieces, class production up to about 100 pieces. This saves tools and increases productivity.