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Influence of the injection moulding parameters on the laser transmission welding process

机译：注塑参数对激光透射焊接工艺的影响

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摘要

The laser transmission welding is an innovative process, which is very suitable for the joining of complex injection moulded parts. When the production demands a high quality of the weld line it is absolutely necessary to consider all the influences of the welding process. While welding semi-crystalline thermoplastics the morphology of the transparent joining partner has to be taken into consideration, because the laser beam characteristics and the amount of energy of the welding process depend extensively on the crystallisation characteristics. During the injection moulding process the cooling conditions of the part, that depend e.g. on the melt and the mould temperature, can influence the crystalline structure. Therefore the injection moulding process has to be integrated in a quality assurance system for the laser transmission welding. In this paper the results of intensive experiments for PBT are documented.
机译：激光透射焊接是一种创新工艺，非常适合于复杂的注塑件的连接。当生产要求高质量的焊接线时，绝对有必要考虑焊接过程的所有影响。在焊接半结晶热塑性塑料时，由于激光束的特性和焊接过程的能量在很大程度上取决于结晶特性，因此必须考虑透明连接伙伴的形态。在注塑过程中，零件的冷却条件取决于例如冷却条件。在熔体和模具温度上，会影响晶体结构。因此，注塑工艺必须集成在用于激光透射焊接的质量保证系统中。本文记录了PBT密集实验的结果。

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