Development of titanium denture plate with a new CAD/CAM system.

提出了一种采用增量成形技术制作纯钛义齿板的柔性工艺。义齿板是全口义齿的重要修复部件。本研究采用增量拉伸成形方法制备纯钛义齿板。然而，这一过程带来了抗癫痫性差的难题。为了提高表面质量，对阳极氧化膜进行了测试。虽然氧化膜具有良好的抗癫痫性，但在一定区域产生了可再现的滑动痕迹。系统地研究了成形针进给量和表面坡度对粗糙度的影响。由于刀具刻痕深，过大的进给速度增加了粗糙度。由于与刀具的严重滑动接触，小进给量增加了粗糙度。结果证实存在使粗糙度最小的最佳条件。

A new flexible process for pure titanium denture plate using incremental forming technology is being developed. Denture plate is a important dental prosthetic component of complete denture. In this research, incremental sheet metal stretch forming was applied to fabrication of pure titanium denture plates. This process, however, posed difficult problems about poor seizure resistance. In order to improve the surface quality, anodic oxide film was tested. Although the oxide film showed good seizure resistance, reproducible sliding marks were produced in a certain region. The effect of the feed rate of forming stylus and the slope of surface on the roughness was investigated systematically. The excessive feed rate increased the roughness because of deep tool marks. The small feed rate increased the roughness due to the severe sliding contact with tool. The results confirmed the existence of optimum condition in which the roughness was minimized.