基于遗传算法的快速成型零件分层方向优化方法

Optimization Method to Fabrication Orientation of Parts in Rapid Prototyping Based on Genetic Algorithm

熔融沉积快速成型技术在快速成型制造领域中的作用日趋明显,复杂零件成型方向是成型中的关键问题之一.为此,提出了一种熔融沉积成型分层方向的选择方法,建立了以支撑面积最小、制作时间最短和表面粗糙度最低为优化目标函数的数学模型,用遗传算法求解,得到优化的制作方向.快速成型实验结果表明,本方法可明显提高快速成型系统的加工效率,降低系统的成本.

The fused deposition modeling rapid prototyping technique is playing a more and more important role in the field of rapid prototyping manufacture. The prototyping orientation of complicated parts is one of the key problems. So, a selection approach of fused deposition rapid prototyping is put forward and a model is established to optimize the bearing area, fabrication time and surface roughness. Then the optimization of fabrication orientation is obtained by genetic algorithm. The result shows that the optimization model proposed can obviously improve the processing efficiency of rapid prototyping systems and reduce the cost.