Investigation and modeling of design and manufacturing guidelines for the plastic freeforming by use of ABS considering the process-specific material degradation

该项目的目的是为塑料自由成形设计和制造指南的开发和建模，这些指南适当地适应材料并提供有关基本特性（机械参数，翘曲，外观）的陈述。所提供的准则应证明塑性自由成形的效率。特别是塑料自由成形在常规成形过程中的替代能力应加以解释（例如注射成型）。此外，力学参数（抗拉、抗压和抗弯强度）的确定应考虑到塑性自由成形结构的多孔结构。除了制造参数的变化外，还应检查材料粘度对孔隙率的影响。利用计算机断层扫描技术对孔隙进行识别和分析。此外，应分析特定工艺的材料降解。这一目的的目的是制定战略，尽量减少材料退化。

The aim of the project is the development and modeling of design and manufacturing guidelines for the plastic freeforming, which are adapted appropriately for the material and deliver statements about the essential properties (mechanical parameters, warpage, look). The provided guidelines should demonstrate the efficiency of the plastic freeforming. In particular the substitution ability of the plastic freeforming in conventional forming processes should be explained (e.g. injection molding). Moreover the mechanical parameters (tensile, compressive and bending strength) should be determined taking into account the porous construction of a plastic freeforming-made structure. Besides the variation of the manufacturing parameters in particular the influence of the material viscosity on the porosity should be examined. The pores should be identified and analyzed by the application of the computed tomography scan.In addition, the process-specific material degradation should be analyzed. The aim of this purpose is to develop strategies, which minimize the material degradation.