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Lean practices in machinery manufacturing industries - a case study

机译：机械制造行业的精益实践-案例研究

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摘要

Lean manufacturing is an emerging concept in the Indian manufacturing scenario. Many small and medium scale enterprises in the country are aiming at becoming lean and thereby improving their productivity. This paper is an outcome of a case study in one such enterprise that deals with the manufacturing and assembly of offset printing machinery in India. Being a vendor-based organisation, part shortage due to delays in the process was a major problem faced. A thorough analysis of the various vendors and processes that the product goes through was done and the process flow was mapped to obtain a clear picture of the entire system, and software modelling helped arrive at quantitative results. Lean tools like Pareto analysis, five-why analysis, source inspection, etc., were used to identify and eliminate the various factors that led to delay. Proper scheduling of jobs is also essential to reduce waiting time, and therefore an algorithm has been developed to help arrive at an optimum scheduling sequence. The results from this case study have proved successful in reducing the lead time of the component under study.
机译：精益制造是印度制造业中的一个新兴概念。该国许多中小型企业的目标是变得精简，从而提高生产率。本文是在一家从事印度胶印机制造和组装的企业中进行案例研究的结果。作为一个基于供应商的组织，由于流程延迟而导致的零件短缺是面临的主要问题。对产品所经过的各种供应商和流程进行了彻底的分析，并映射了流程以获取整个系统的清晰图片，并且软件建模有助于得出定量的结果。使用诸如Pareto分析，五为什么分析，源检查等精益工具来识别和消除导致延迟的各种因素。正确的作业调度对于减少等待时间也是必不可少的，因此已经开发了一种算法来帮助实现最佳调度顺序。该案例研究的结果证明可以成功减少所研究组件的交货时间。

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