The support structure is required to successfully create structural parts in the powder bed fusion process of additive manufacturing. In this study, we present the topology optimization of the support structure that improves heat dissipation in the building process. First, we construct a numerical method that obtains the temperature field in the building process represented by the transient heat conduction phenomenon with volume heat flux. Next, we formulate an optimization problem for maximizing heat dissipation and develop an optimization algorithm incorporating the level-set-based topology optimization. A sensitivity of the objective function is derived using the adjoint variable method. Finally, several numerical examples are provided to demonstrate the effectiveness and validity of the proposed method.

翻译：支持结构是成功创建添加剂制造粉末床聚变过程中的结构部件所必需的。 在本研究中,我们展示了改进建筑过程中热散化的辅助结构的地形优化。首先,我们构建了一个数字方法,在建筑过程中获得由瞬时热导现象和体积热通量所表现的温度场。接着,我们提出一个优化问题,以最大限度地减少热散散,并开发一个优化算法,将基于水平的地形优化纳入其中。利用联合变量方法得出了客观功能的敏感性。最后,我们提供了几个数字例子,以证明拟议方法的有效性和有效性。