关键词: 比磨削能, 高效深磨, 工程陶瓷, 磨削表面状况, 磨削力

Abstract: In order to improve machining efficiency and grinding surface integrality of advanced ceramics, the effect of different grinding conditions (different wheel speed, different depth of cut or different feed rate) on surface characteristics, grinding force, specific grinding energy and material remove modes of advanced ceramics, including alumina, nitride silicon and yttria partially stabilized zirconia, are studied under high efficiency deep grinding condition. Special grinding efficiency and depth of cut arrive at 120 mm3/(mm·s) and 6 mm respectively. Experiments indicate that the increase in wheel speed and decrease in depth of cut, I.e., decrease in maximum undeformed chip thickness, result in decrease in specific grinding force, increase in specific grinding energy and plough striations. It is shown that the grinding efficiency increases and the surface integrality does not become worse under grinding condition of great depth of cut.

Key words: Advanced ceramics, Grinding force, haracteristics, High efficiency deep grinding, Specific grinding energy, Surface