Combined production of AISI H13 tool steel using laser-based additive manufacturing and mechanical finishing to increase performance and durability

使用激光增材制造和机械精加工联合生产 AISI H13 工具钢，以提高性能和耐用性

• 批准号: 528603925
• 负责人: Professor Dr. Bernd Breidenstein
• 金额: --
• 依托单位: Fachgebiet Metallische Werkstoffe
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/528603925?language=en
• 关键词: Combined; production; AISI; H13; tool

In industrial applications, hot work tool steels are used for high wear resistance and good thermal shock resistance. The challenge to constantly increase efficiency pushes alloys in die-casting tools to their limits. This fact raises the need for innovative manufacturing processes. Additive manufacturing, due to its unprecedented design potentials, allows the component properties to be adapted to local requirements via tailoring local microstructures. In die-casting tools, high demands are set regarding surface quality. These only can be achieved by additive manufacturing in combination with subsequent milling, which again influences the surface properties. Within the scope of the project applied for, production factors of the combined production chain of additive manufacturing and milling and deep rolling post-treatment are to be elaborated using statistical experimental design. Here, it is intended to establish different material properties. Differently processed conditions will be characterized in detail in terms of their microstructural and mechanical properties and their interrelationships, assessed using response surface methodology. In the further course of the project, specimens with specifically tailored zones of different hardness and tensile strength will be established on top of each other and the transition zone in particular will be extensively investigated. Finally, the specimens will be subjected to thermal fatigue to test the durability of the combined fabricated specimens with locally different properties and finally to assess the overall factor-target correlation using the response surface methodology to eventually allow for transfer of results to other alloy systems.

在工业应用中，热工作工具钢用于高磨损耐药性和良好的热冲击性。不断提高效率的挑战将模具铸造工具的合金推向其极限。这一事实提出了对创新制造过程的需求。由于其前所未有的设计潜力，增材制造可以通过调整本地微观结构来适应本地需求。在压铸工具中，对表面质量的需求提高了。这些只能通过加成制造与随后的铣削结合来实现，这再次影响了表面特性。在申请的项目范围内，应使用统计实验设计详细阐述添加剂制造和铣削和深层处理后的生产链的生产因子。在这里，它旨在建立不同的材料属性。使用响应表面方法评估，将根据其微结构和机械性能及其相互关系来详细详细介绍处理条件不同的条件。在项目的进一步过程中，将在彼此之间建立具有不同硬度和拉伸强度的特定量身定制区域的标本，尤其是过渡区将进行广泛研究。最后，样品将受到热疲劳的影响，以测试具有局部特性的组合制造样品的耐用性，最后使用响应表面方法来评估整体因子 - 目标靶标相关性，以最终使结果传递到其他合金系统。