关键词: 轴向进给, 工程陶瓷, 进给速度, 边缘破碎, 磨削力, 曲率半径

Abstract:

An  abrasive grain trajectory model of grinding engineering ceramics in axial deep creep- feed grinding with small grinding wheel was established and the relationship among cutting  parameters and the law of abrasive grains' motion was revealed. The effects of feeding speed on the crushing of edge, grinding force and the diamond abrasive wear were analyzed according to the actual machining of ceramics by changing processing parameters. The experimental results are consistent with the simulation ones. Experiments were based on appropriate experimental schemes and force measuring system, the changing of the diamond grain's curve radius was real-time detected by edge detection and curve fitting of profile. This paper also provides references on how to use the feed speed that is reasonable to enhance the processing efficiency by removing ceramic chunks via the splitting and to reduce the damage on the workpiece and the grinding wheel.

Key words: axial feed;engineering ceramics;feeding speed;edge , crushing;grinding force;radius of curvature