Development of metal sheet denture plate with a CAD/CAM system

目前正在开发一种采用增量成形技术的纯钛义齿板柔性成形工艺。随着社会的老龄化，托板是全口义齿修复的重要部件。本研究将板料渐进拉伸成形应用于纯钛义齿板的制造。然而，这一过程带来了关于抗癫痫性差的难题。为了提高表面质量，对阳极氧化膜进行了测试。虽然氧化膜显示出良好的抗咬合性，但在一定区域内产生可再现的滑动痕迹。系统地研究了成形针进给速度和表面坡度对粗糙度的影响。过高的进给速度会使加工表面粗糙度增大，产生较深的刀痕。小的进给量会使工件与刀具的严重滑动接触而增加粗糙度.结果证实了存在使粗糙度最小的最佳条件。但是，我们可以改变系统，提高几何精度的钛义齿板，其他输入接口的扫描从牙模型。

A 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 with the aging society. 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 slidingcontact with tool. The results confirmed the existence of optimum condition in which the roughness was minimized. But we can change the system that improvement of geometrical accuracy for titanium denture plate, other input interface of scanning from dental models.