Thermisch beschichtete, faserverstärkte Polymerwerkzeuge für die Umformung höherfester Blechwerkstoffe
Thermisch beschichtete, faserverstärkte Polymerwerkzeuge für die Umformung höherfester Blechwerkstoffe
复制标题
热敏材料、聚合物工程技术
DOI：
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Jörg Kolbe
中科院分区：
文献类型：
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作者：
Jörg Kolbe
本论文的主题是研究由聚合物制成的热喷涂混合拉深工具，用于形成高强度钢，用于中小批量生产。重点是开发具有成本效益的拉深工具，并在短时间内准备好运行。这些工具以差分结构实现。由聚合物制成的机身材料包裹有热喷涂涂层，可防止磨损。通过使用填料和纤维增强材料可以提高工具的刚度和强度。这使得工具在高强度材料成型过程中具有更高的可靠性，防止出现故障。此外，还可减少热喷涂工具表面的应力。为了制造这些涂层，开发了一种间接涂层工艺。该过程使主体材料和涂层本身之间产生适当的粘附力。该涂层足以直接用于成型工艺，无需机械精加工。与普通聚合物深拉工具相比，这些涂层的工具耐磨性显着提高。可以制造所需件数的钣金零件。混合拉深工具足以成型低碳钢和高强度钢。在这里，由混合工具形成的零件的几何精度可以与由传统工具形成的零件的精度相当。与传统钢制工具相比，混合工具具有更高的弹性，减少了局部接触峰值。这有可能缩短冲压车间中混合工具的试用时间。
Topic of this thesis is the investigation of thermally sprayed hybrid deep drawing tools made of polymers for forming high strength steels, which are used in small to medium batch size productions. The focus is on the development of cost-effective deep drawing tools, ready in short-time for operation. The tools are realized in a differential construction. A body material made of polymer is wrapped with a thermally sprayed coating, which is a protection against wear. The stiffness and the strength of the tool can be increased by the use of fillers and fiber reinforcements. This results in a higher reliability of the tool against failure during forming of high strength materials. In addition, a reduction of stresses in the thermally sprayed tool surfaces is realized. An indirect coating process is developed in order to manufacture these coatings. This process leads to a suitable adhesion between the body material and the coating itself. The coatings are adequate for a direct use in forming processes without mechanical finishing. With these coatings the wear resistance of the tools is increased significantly compared to common polymer deep drawing tools. The aspired piece number of sheet metal parts can be manufactured. The hybrid deep drawing tool is adequate to form mild as well as high strength steels. Here, a comparable geometrical accuracy of parts formed by the hybrid tool with the accuracy of parts formed by conventional tools is possible. The higher elasticity of the hybrid tools compared to conventional tools made of steel reduces local contact peaks. This provides a potential of shorter try-out times of the hybrid tools in the press shop.
拉深过程中弹性工具和压力机变形的静态补偿
DOI：
10.1007/s11740-010-0216-7
发表时间：
2010
期刊：
Production Engineering
影响因子：
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作者：
Großmann;Wiemer;Hardtmann;Penter;Kriechenbauer
通讯作者：
Kriechenbauer