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Unnecessary Overtime as the Component of Time Loss Measures in Assembly Processes

机译:不必要的加班时间是组装过程中时间损失措施的组成部分

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Hidden Time Loss (HTL) occurs along the production processes that have a significant effect on productivity. Overall Equipment Efficiency (OEE) is the most popular performance measurement tool used in the production line. Equipment performance is one of the measure components of OEE that caters HTL. However, OEE doesn’t really fit in measuring operation performance of assembly process especially the semi-auto assembly and the manual assembly process. There would be the amount of HTL have occurred along the semi-auto assembly and manual assembly processes that become critical when to involve high product variety at the same production line. Thus, the purpose of this paper is to introduce the Unnecessary Overtime (UOT) as one of the component of Time Loss Measures (TLM) in assembly processes. The structure of UOT is developed through a thorough literature study on manufacturing operations and its performance measures. The UOT structure is validated by using case study at five automotive manufacturing companies. The results show that the UOT is one of the components of TLM in semi-auto and manual assembly processes.
机译:隐藏时间损失(HTL)会在生产过程中发生,对生产率产生重大影响。总体设备效率(OEE)是生产线中最流行的性能测量工具。设备性能是满足HTL的OEE的衡量标准之一。但是,OEE并不真正适合测量装配过程的操作性能,尤其是半自动装配和手动装配过程。在半自动组装和手动组装过程中会发生大量的HTL,当在同一条生产线上涉及大量产品时,HTL变得至关重要。因此,本文的目的是介绍不必要的加班(UOT)作为组装过程中时间损失度量(TLM)的组成部分之一。 UOT的结构是通过对制造操作及其性能指标进行详尽的文献研究得出的。通过使用五家汽车制造公司的案例研究来验证UOT结构。结果表明,UOT是TLM在半自动和手动组装过程中的组件之一。

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