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功能梯度材料是一种新型非均质材料,有着广泛的应用前景.传统的制造设备无法满足加工这种材料零件的要求,快速原型制造技术使得功能梯度材料零件的制造加工得以实现.支撑设计决定快速原型制造产品精度.针对功能梯度材料零件数字化设计制造中的支撑生成问题,采用了基于邻边排序的Stereo Lithography模型切片算法并提出了基于多边形布尔运算的支撑生成算法.根据功能梯度材料零件几何信息及零件内部材料分布信息实现支撑间距自适应改变,提高了快速原型产品精度.通过对支撑自动生成实例的分析,验证功能梯度材料零件快速原型制造中支撑自动生成算法的正确性.
Functionally graded material is a new type of heterogeneous material and has a wide range of applications. Traditional manufacturing equipment can not meet the requirements of processing such material parts, and rapid prototyping technology enables the manufacturing and processing of functionally graded material parts. Aiming at the problem of support generation in digital design and manufacture of functional graded material parts, a Stereo Lithography model slicing algorithm based on neighbor sorting and a support generation algorithm based on polygonal Boolean operation are proposed.Based on the features of functional graded material part geometry Information and internal material distribution information of parts are adaptively changed to improve the accuracy of rapid prototyping products.Based on the analysis of bracing instances, the correctness of bracing algorithm in rapid prototyping of functional graded material parts is verified.