Local Heat Treatment in Draw Bending for Profiles of Manganese Boron Steel 22MnB5
Local Heat Treatment in Draw Bending for Profiles of Manganese Boron Steel 22MnB5
复制标题
锰硼钢22MnB5型材拉弯局部热处理
DOI：
10.1016/j.proeng.2017.04.007
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Moritz
中科院分区：
文献类型：
--
作者：
Behrens;Hübner;Moritz
由于对低油耗和低排放汽车的需求不断增加，轻量化结构是汽车工业的一项重要任务。高强度的外形部件减少了车辆的总重量，同时保持了高的抗弯曲性。拉伸弯曲与感应板加热和随后的冷却相结合，代表了生产小批量部分硬化型材的成本效益和经济概念。本文对拉伸弯曲工艺链中的加热和冷却进行了优化和检验。通过数值模拟设计工艺，对现有的IFUM拉弯机进行了扩展，增加了感应加热装置和冷却系统。随后，利用这台机器进行了拉拔弯曲过程中热处理的新实验。在这些实验过程中，根据所需的拉伸力、过程中的温度过程和各自的硬度值记录确定的工艺极限。这些数值用于评价和验证数值模拟的结果。通过在材料进入成形模具前对其进行加热，可以证明通过拉伸弯曲成形超高强度型材件是可能的。通过表面电感器将材料加热到奥氏体化温度，并通过拉伸弯曲工具和附加空气冷却冷却材料。材料为未涂覆的锰硼钢22MnB5。采用上游加热的方法，取得了较好的工艺效果和零件质量。与模拟结果的比较也显示出高度的相似性，从而证实了数值表示过程的结果。从而成功地证明了将热处理整合到拉伸弯曲操作中的总体可行性。
Due to the increasing demand for vehicles with a low fuel consumption and consequently low emissions, lightweight construction is an important task in the automotive industry. High-strength profile parts reduce the total weight of the vehicle while maintaining a high bending-resistance. Draw bending combined with inductive sheet heating and subsequent cooling represents a cost-effective and economic concept for producing partially hardened profiles for small batch sizes. This paper deals with experimental investigations to optimize and examine heating and cooling in the process chain of draw bending. After designing the process by numerical simulation, the existing draw bending machine of the IFUM was expanded by an inductive heating unit and a cooling system. Subsequently, new experiments on the implementation of a heat treatment during draw bending were carried out with this machine. In the course of these experiments, the determined process limits were recorded based on the required drawing force, the temperature courses in the process and the respective hardness values. These values served to evaluate and validate the results of the numerical simulation. By means of heating the material before it enters the forming die, it could be shown that it is possible to form super high-strength-profile components through draw bending. The material was heated up to austenitization temperature by a surface inductor and cooled by the draw bending tool and the additional air cooling. The material used was the uncoated manganese-boron steel 22MnB5. Good results with regard to process and part quality were obtained by means of an upstream heating. The comparison with the simulation also showed a high degree of similarity and consequently confirmed the results of the numerical representation of the process. Thus the general feasibility of integrating a heat-treatment into a draw bending operation was successfully proved.
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影响因子：
2.3
作者：
K. Richter;R. Müller;A. Kunke;V. Kräusel;D. Landgrebe
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DOI：
--
发表时间：
2010
期刊：
Production Engineering
影响因子：
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作者：
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DOI：
10.3139/105.110242
发表时间：
2014
期刊：
HTM Journal of Heat Treatment and Materials
影响因子：
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作者：
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通讯作者：
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DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
H. Friedrich;W. Eichlseder
通讯作者：
W. Eichlseder
影响因子：
4.1
作者：
Mori, K;Maki, S;Tanaka, Y
通讯作者：
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