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Development of a microstructural suited forging technology for crank shafts

开发适合曲轴微观结构的锻造技术

基本信息

批准号：
226927008
负责人：
Dr.-Ing. Florian Nürnberger
金额：
--
依托单位：
Institut für Werkstoffkunde (IW)
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2012
资助国家：
德国
起止时间：
2011-12-31 至 2014-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/226927008?language=en
关键词：
Development microstructural suited forging technology

项目摘要

Within the applied research project the development of a numerically supported technology for forming and heat treatment of heavy steel parts such as crank shafts by considering the microstructural development is intended. The research project shall be realized in collaboration with project partners from Poland. The forming heat can be used to accomplish a heat treatment directly after a forging to reduce the usually necessary process steps of manufacturing steel parts. Here, such a shortened processing shall be realized at the manufacturing process of heavy crank shafts for instance. Considering the microstructural development during forming and heat treatment, an optimized processing of parts with enhanced mechanical properties shall be developed while reducing the usually necessary energy consumption. For the development of a heat treatment technology numerical simulations of cooling and coupled microstructure development are planned based on suited deformation time-temperature-transformation diagrams on the part of the Institute of Materials Science. Numerical process optimization will be carried out in collaboration with the project partners by connecting the heat treatment simulation, developed in Hanover, with the forming simulation, developed at the AGH University of Science and Technology in Kraków. The required material properties will be determined by using plastometric measurements at the Institute of Iron Metallurgy in Gliwice and dilatometric measurements in Hannover, respectively. Experimental investigations of a process integrated manufacturing of crank shafts are carried out at the Institute of Metal Forming in Poznán. A suited cooling facility for an appropriate heat treatment by means of spray cooling will be developed in Hannover.

在应用研究项目中，打算通过考虑微观结构的发展，开发用于曲轴等重型钢部件的成形和热处理的数字支持技术。该研究项目将与来自波兰的项目合作伙伴合作实现。成形热可用于在锻造后直接完成热处理，以减少制造钢部件通常所需的工艺步骤。这里，这种缩短的加工例如在重型曲轴的制造过程中实现。考虑到成形和热处理过程中的微观组织发展，应开发具有增强机械性能的零件的优化工艺，同时减少通常所需的能源消耗。为了开发热处理技术，材料科学研究所计划根据合适的变形时间-温度-转变图进行冷却和耦合组织发展的数值模拟。通过将汉诺威开发的热处理模拟与克拉科夫AGH科技大学开发的成形模拟相结合，与项目合作伙伴合作进行数值工艺优化。所需的材料性能将分别通过在Gliwice的铁冶金研究所进行塑性测量和在汉诺威进行塑性测量来确定。在波兹南的金属成形研究所进行了曲轴工艺集成制造的实验研究。将在汉诺威开发合适的冷却设备，通过喷雾冷却进行适当的热处理。