在振动焊接工艺中使用针状结构连接时的结构步长相关特性

IF 1.1 4区 工程技术 Q4 ENGINEERING, CHEMICAL
M. Wolf, D. Drummer
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引用次数: 0

摘要

摘要 通过这项研究,得出了针状接合结构步骤中的相关性。较高的振幅或力导致摩擦能量增加,从而缩短了结构化时间。潮湿试样的热机械性能变化导致加工时间增加。无论工艺控制如何,针状结构的理论几何形状在下针区都得到了很好的再现。在销钉上部区域,力和振幅的增加会导致缺陷和空气夹杂物增加,这是因为销钉形成的速度加快且更加不均匀。湿度不会影响销钉的几何形状,但应避免因空气夹杂物增加而削弱结构。对于多材料接缝,可实现高达 30% 的基材粘接强度(根据所使用的几何形状,最高可达 50%)。因此,需要最小的底切。一旦达到了这一要求,销钉缺陷和相应的销钉脚比率对最终的粘接质量起着决定性作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Structuring step dependent characteristics in joining using pin-like structures in the vibration welding process
Abstract With this study, correlations in the structuring step of pin-like joining were derived. Increased friction energy due to higher amplitude or force leads to a reduction in structuring time. Changes in thermo-mechanical properties for humid specimens result in increased process times. The theoretical geometry of the pin-like structures is well reproduced in the lower pin area, regardless of the process control. In the upper pin area, increased force and amplitude results in increased defects and air inclusions as a result of an accelerate and more inhomogeneous pin formation. Humidity does not affect the general pin geometry, but should be avoided due to increased air inclusions that can weaken the structure. For the multi-material joints, high bond strengths of up to 30 % of the base material (max. 50 % possible with the geometry used) can be achieved. Therefore, a minimum undercut is required. Once this is reached, the pin defects and the corresponding pin-foot ratio are decisive for the resulting bond quality.
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来源期刊
International Polymer Processing
International Polymer Processing 工程技术-高分子科学
CiteScore
2.20
自引率
7.70%
发文量
62
审稿时长
6 months
期刊介绍: International Polymer Processing offers original research contributions, invited review papers and recent technological developments in processing thermoplastics, thermosets, elastomers and fibers as well as polymer reaction engineering. For more than 25 years International Polymer Processing, the journal of the Polymer Processing Society, provides strictly peer-reviewed, high-quality articles and rapid communications from the leading experts around the world.
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