Investigation of the joining zone of laser welded and cross wedge rolled hybrid parts
Investigation of the joining zone of laser welded and cross wedge rolled hybrid parts
复制标题
激光焊接和楔横轧混合零件连接区的研究
DOI：
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复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
B. Behrens
中科院分区：
文献类型：
--
作者：
T. Blohm;S. Nothdurft;M. Mildebrath;H. Ohrdes;J. Richter;M. Stonis;J. Langner;A. Springer;S. Kaierle;T. Hassel;J. Wallaschek;L. Overmeyer;B. Behrens
今天的大多数技术零件和组件都是由单片材料制成的。这些在既定生产工艺中生产的单一材料组件由于其各自的材料特性而达到其极限。因此，只有将不同的材料组合在一个部件中，才能显著提高生产质量和效率。将先前连接的半成品批量成形为由两种不同材料组成的净形混合部件是生产具有局部优化特性的部件的有前途的方法。与传统制造技术相比，这种新的生产工艺链具有许多优势。例如，生产特定的负载适应锻造零件，材料利用率高，并且对连接区域产生影响，这是由随后的成形工艺引起的。本文介绍了一种激光焊接与楔横轧工艺相结合的串联混合钢零件的生产工艺。所提出的结果只是第一种方法，以获得激光焊接和楔横轧零件的成形行为的第一个见解。所研究的材料组合为C22（1.0402）和20MnCr5（1.7147）。这种创新的工艺链可以实现混合动力部件的生产。为了评估开发的工艺链，焊缝和连接区进行了分析之前和之后的楔横轧。主要结果是，使用激光焊接的连接过程能够在两种材料之间实现牢固的结合，在连接区域中具有比单个材料更高的硬度。在成形过程之后，接合区的结合仍然存在，而硬度降低，但仍然高于材料本身的硬度。
Most of today’s technical parts and components are made of monolithic materials. These mono-material components produced in established production processes reach their limits due to their respective material characteristics. Thus, a significant increase in production quality and efficiency can only be achieved by combining different materials in one part. Bulk forming of previously joined semi-finished products to net shape hybrid components that consist of two different materials is a promising method to produce parts with locally optimized characteristics. This new production process chain offers a number of advantages compared to conventional manufacturing technologies. Examples are the production of specific load-adapted forged parts with a high level of material utilization and an impact on the joining zone caused by the following forming process. This paper describes the production process of serially arranged hybrid steel parts, produced by combining a laser welding process with a subsequent cross wedge rolling process. The presented results are only a first approach in order to get first insights in the forming behaviour of laser welded and cross wedge rolled parts. The investigated material combination is C22 (1.0402) and 20MnCr5 (1.7147). This innovative process chain enables the production of hybrid parts. To evaluate the developed process chain, the weld and the joining zone is analysed before and after cross wedge rolling. Main results are that the joining process using laser welding enables a strong bonding between the two materials with a higher hardness in the joining zone than for the individual materials. After the forming process, the bonding of the joining zone is still present, while the hardness decreased but remains higher than of the materials themselves.
DOI：
10.1007/s11740-016-0702-7
发表时间：
2016-10
期刊：
Production Engineering
影响因子：
--
作者：
J. Knust;M. Stonis;B. Behrens
通讯作者：
J. Knust;M. Stonis;B. Behrens
DOI：
10.1007/s00170-016-9209-9
发表时间：
2017-03-01
影响因子：
3.4
作者：
Knust, Johannes;Podszus, Florian;Ullmann, Georg
通讯作者：
Ullmann, Georg