This paper introduces a simple formulation for topology optimization problems ensuring manufacturability by machining. The method distinguishes itself from existing methods by using the advection-diffusion equation with Robin boundary conditions to perform a filtering of the design variables. The proposed approach is less computationally expensive than the traditional methods used. Furthermore, the approach is easy to implement on unstructured meshes and in a distributed memory setting. Finally, the proposed approach can be performed with few to no continuation steps in any system parameters. Applications are demonstrated with topology optimization on unstructured meshes with up to 64 million elements and up to 29 milling tool directions.

翻译：本文介绍一种简单的地形优化问题提法,确保机械化的制造业。该方法与现有方法不同,使用与罗宾边界条件的平面扩散方程式对设计变量进行过滤。拟议的方法在计算上比传统方法花费较少。此外,该方法很容易在非结构化的网目和分布式的内存设置中实施。最后,在任何系统参数中,拟议方法可以少步、少步、零步地实施。应用在无结构的网目上以6,400万个元素和29个磨粉工具方向展示了地形优化。