The combination of additive manufacturing and incremental sheet forming offers great flexibility in the manufacture of function-integrated parts. In this study, both processes were carried out by the same CNC machine. This offers the possibility to manufacture large-scale lightweight parts with smaller additive parts on it in one machine and clamping device. Additionally, the process combination can lead to a reduced energy and material consumption for small batch sizes. DC01 sheets are used as a substrate with two different initial conditions. The first condition is as delivered steel sheet and the second is an incrementally formed with a thickness of 0.5 mm. The additive manufacturing was conducted by laser metal deposition (LMD). The powder material is a stainless steel 316 L. A segmentation of the cladding surface was applied and the path strategy of the laser movement was varied simultaneously to analyse the warpage of the thin substrate. It is shown that there is a dependency between the build-up strategies and the melt pool temperature, the thermal distortion, the dilution and the size of the cladding area. A segmentation of the working surface causes a lower melt pool temperature and thermal distortion. The lower melt pool temperature also generates a reduced dilution zone.

中文翻译：

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激光金属沉积在薄金属板上的变形和稀释行为

增材制造和增量板材成形的结合为功能集成零件的制造提供了极大的灵活性。在这项研究中，这两个过程都是在同一台CNC机器上进行的。这提供了在一台机器和夹紧装置中制造大型轻量化零件和附加较小零件的可能性。另外，对于小批量，该工艺组合可以减少能源和材料消耗。DC01片材用作具有两种不同初始条件的基材。第一个条件是交货的钢板，第二个条件是增量成形的厚度为0.5毫米。通过激光金属沉积（LMD）进行增材制造。粉末材料是316 L不锈钢。应用包层表面的分割，同时改变激光运动的路径策略以分析薄基板的翘曲。结果表明，堆积策略与熔池温度，热变形，稀释度和包层面积之间存在相关性。工作表面的分段导致较低的熔池温度和热变形。较低的熔池温度也产生了减少的稀释区。工作表面的分段导致较低的熔池温度和热变形。较低的熔池温度也产生了减少的稀释区。工作表面的分段导致较低的熔池温度和热变形。较低的熔池温度也产生了减少的稀释区。