利用流涎成型工艺和脉冲电流烧结制作了气孔率达28Vol%的高效薄刃砂轮。在烧结过程中,金刚石磨粒和母材之间形成WC和W2C,金刚石磨粒与母材的结合强度得到提高。利用恒负荷进给,切割机在3.0N恒负荷进给条件下,对厚度0.09mm的新制作薄刃砂轮和市售薄刃砂轮进行了评价。切割试样为厚度1.2mm的Al2O3-TiC复合材料。新制作薄刃砂轮和市售薄刃砂轮的切割速度分别为6.2mm/s和2.9mm/s,切割长度为750mm。新制作薄刃砂轮表面的金刚石磨粒数在切割试验前后保持不变,而市售薄刃砂轮的表面金刚石磨粒数则减少50%。新制作薄刃砂轮和市售薄刃砂轮的比磨削能分别为133GJ/m3和213 GJ/m3。研究结果表明,通过引入气孔和提高金刚石磨粒与母材的结合强度,可生产出高效薄刃切割砂轮。 Using the salivation molding process and pulse current sintering porosity of 28Vol% efficient thin blade wheel was made. During sintering, WC and W2C are formed between the diamond abrasive grains and the base metal, and the bonding strength between the diamond abrasive grains and the base material is improved. Using a constant-load feed, the cutting machine evaluated the newly-produced thin-edged grindstone of 0.09 mm and a commercially-available thin-edged grindstone under the 3.0 N constant-load feed. The sample was cut to a thickness of 1.2 mm Al2O3-TiC composite material. The cutting speeds of the newly produced thin-edged grinding wheel and the commercially available thin-edged grinding wheel are 6.2 mm / s and 2.9 mm / s, respectively, and the cutting length is 750 mm. The number of diamond grains on the surface of the newly manufactured thin edge grinding wheel remained unchanged before and after the cutting test, while the number of diamond grains on the surface of commercially available thin edge grinding wheels was reduced by 50%. The specific grinding of the newly manufactured thin-edged grinding wheel and the commercially available thin-edged grinding wheel is 133 GJ / m3 and 213 GJ / m3, respectively. The results show that high efficiency thin-blade cutting wheels can be produced by introducing air holes and increasing the bonding strength between the diamond grains and the base metal.