对于多轴增材制造的多平面切片的可差分建模和优化
1Sustainable Design Engineering, Faculty of Industrial Design Engineering, Delft University of Technology, Landbergstraat 15, 2628CE Delft, Zuid-Holland The Netherlands.
概括
电弧增材制造中的多平面沉积可以通过使用每个子部件不同的打印方向来显著减少扭曲. 这种新的方法比复杂几何学的传统方法提供了数量级的改进.
科学领域:
- 制造业 工程 制造工程
- 材料科学与工程 材料科学与工程
背景情况:
- 电弧增材制造 (WAAM) 面临着残余应力和扭曲的挑战.
- 多轴增材制造通过先进的沉积策略提供了潜在的解决方案.
研究的目的:
- 开发一种新的连续和可微分的配方,用于WAAM中的多平面切片.
- 通过优化沉积策略来减少WAAM的扭曲.
主要方法:
- 一个伪时间字段对部分细分成子部分进行参数化.
- 一个方向字段为每个子部分定义了不同的打印方向.
- 基于梯度的优化是通过可差分的配方实现的.
主要成果:
- 应用了多平面沉积策略,以减少WAAM的扭曲.
- 测试了具有复杂几何形状 (孔,悬架,下悬架) 的数值示例.
- 与传统的平面策略相比,扭曲率减少了一个数量级.
结论:
- 提出的可微分的多平面切片配方有效地减少了WAAM中的扭曲.
- 这种方法适用于复杂的几何形状,并且比平面策略提供了显著的改进.
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