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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part H. Journal of Engineering in Medicine >Machinability of enamel under grinding process using diamond dental burrs
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Machinability of enamel under grinding process using diamond dental burrs

机译：使用钻石牙毛刺研磨过程中搪瓷的可加工性

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摘要

Enamel grinding is a critical dental surgery process. However, tooth damage during the process remains a significant problem. Grinding forces, burr wear, and surface quality were characterised in relation to grinding speed, enamel orientation, grinding depth, and burr grit grain size. Results indicated that enamel rod orientation, grinding depth, and grinding speed critically affected enamel grinding. Occlusal surface grinding resulted in significantly higher normal forces, surface roughness, and marginally greater tangential forces than axial surface grinding. Damage to enamel machined surfaces indicated the significant impact of diamond grit size and rod orientation. Burr wear was primarily diamond grit peeling off and breakage. Surface roughness of axial and occlusal sections was largely influenced by grinding speed and diamond grit size. Improving the surface quality of machined enamel surfaces could be realised using fine burrs, reducing the grinding speed and grinding depth, and adjusting the feed direction vertical to the rod orientation. Enamel surface quality and roughness could be improved by reducing brittle failure and circular runout during the grinding process, respectively.
机译：搪瓷研磨是一种关键的牙科手术过程。然而，过程中的牙齿损坏仍然是一个重大问题。磨削力，毛刺磨损和表面质量的特征在于磨削速度，搪瓷取向，磨削深度和毛刺砂粒尺寸。结果表明，搪瓷棒取向，磨削深度和磨削速度严重影响牙釉质研磨。咬合表面研磨导致正常力，表面粗糙度明显高于轴向表面研磨的正常力，表面粗糙度和边缘更大的切向力。对搪瓷机加工表面的损坏表示金刚石砂砾尺寸和杆取向的显着影响。毛刺磨损主要是钻石砂砾剥离和破损。轴向和咬合部分的表面粗糙度在很大程度上受到磨削速度和金刚石砂砾尺寸的影响。可以使用细毛刺实现加工搪瓷表面的表面质量，从而降低研磨速度和研磨深度，并调节垂直于杆方向的进给方向。通过减少磨削过程中的脆性故障和圆形跳动，可以改善搪瓷表面质量和粗糙度。

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