Productivity Improvement by Reducing Idle Time Using Queueing Theory
DOI:
https://doi.org/10.37591/joprm.v6i3.7206Keywords:
Productivity, queueing, spring, chi-square, multi-stage productionAbstract
In this investigation, the rail spring production unit performance to enhance the productivity by reducing the idle time is discussed. The objective of the paper is to improve the effectiveness, efficiency and selecting the most suitable system for production unit. The spring production unit has seven independent work stations namely; end tapering, bar heating furnace, coiling and quenching, tempering furnace, end grinding, chamfering, shot peening and hardness testing. We have examined the process of each workstation and collected the relevant data, and chi-square method was applied to determine the arriving and leaving departure distribution of processing unit. We have employed queueing model for analyzing the performance measure of production unit such as Ls, Lq, Ws, Wq, utilization factor, WIP, etc.
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