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| Research on production line in a powder metallurgy workshop based on eM-Plant and factory layout optimization |
| GAO Ze |
| （Hangzhou Institute of Applied Acoustics, Hangzhou 310023, China） |
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Abstract The production site of the automobile shock absorber compression seat body of a powder metallurgy en‐
terprise was selected as the observation and analysis point. This layout was sufficiently investigated in the work‐
shop production line, and the most of information such as working time, human-machine condition of equipment
together with other things was accurately acquired in the process of production, and the thinking of lean manage‐
ment was adopted to analyze and solve three problems including bottleneck process, incongruity of human-ma‐
chine collaboration and logistics lag of the production line. At the same time, the simulation software was used to
compare and verify the effectiveness of each process before and after the workshop layout improvement, and a set
of solutions suitable for the layout reconstruction of the workshop was proposed. First of all, the total consumption
of the average day was taken as the transmission amount of the whole production line, and the time data of each
process was recorded. Additionally, the bottleneck process was decomposed and reassembled, and the process time
histogram was drawn. The eM-Plant software was used to simulate and verify the production line before and after
improvement. The results show that the balance rate of line is greatly improved by the integration of batching and
mixing processes as well as the reorganization of finishing and cleaning processes. Meanwhile, human-machine operation analysis is carried out on the main processes of the workshop and its date diagram is drawn and the ideal
configuration of human-machine is calculated to simulate the production line when one person with three machines
on the working. The results show that the human-machine utilization rate can be improved by one worker taking in‐
to account the operation of three forming equipment. Finally, the systematic layout planning(SLP) is applied to
study logistics strength of factory production, and a reasonable scheme that could decrease logistics strength is put
forward .
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Received: 09 August 2021
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2022, Vol. 32 
