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将激光金属直接成形技术应用于个性化钛合金假体的制造,能根据假体的三维模型直接制造出相应的零件,具有制造过程周期短和加工出的个性化假体力学性能好的优点。通过研究激光金属直接成形的曲率效应和倾斜角度对几何精度的影响,为激光金属直接成形的工艺模型设计准则提供参考,使假体成形件具有较高的精度。制造出的个性化假体的力学性能和化学成分经过检测,均符合假体的相关国家和医药行业标准,有两例个性化钛合金假体已经成功应用于临床并取得良好的效果。
The direct laser metal forming technology applied to the manufacture of personalized titanium prosthesis, according to the three-dimensional model of the prosthesis directly to produce the corresponding parts, with a short manufacturing cycle and the machined personalized prosthesis good mechanical properties. By studying the influence of the curvature effect and inclination angle of the laser direct metal forming on the geometrical accuracy, it provides a reference for the design criteria of the laser metal direct forming process model, and makes the prosthesis forming part with higher precision. The manufactured prosthesis’s mechanical properties and chemical components have been tested, which are in line with the relevant national and medical standards for prostheses. Two cases of personalized titanium prostheses have been successfully applied to clinical and achieved good results.