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Lean manufacturing system design and value stream management in a high-mix, low-volume environment

机译:在高混合,低容量环境中精益制造系统设计和价值流管理

摘要

Value Stream Mapping is a powerful tool for identifying sources of waste and for creating the vision for the future state of a production system. As a management tool, however, it lacks in specific focus of roles, responsibilities, and actions required to achieve the future state vision. The limitations become more evident and the problems of execution become exacerbated when multiple value stream projects are launched with limited human resources available. This thesis describes a set of management tools to complement Value Stream Mapping. The tools are expected to improve management visibility and accountability. The design of a lean production system is also proposed in this thesis. The lean production system includes a newly designed layout for the manufacturing cell as well as the "operating system" for the cell. The layout is based on the principles of cellular manufacturing in order to promote flow and improve quality. The operating system includes such things as production batch sizes, product routings, and strategic inventory locations. Based on the future state value stream map and supported by a discrete-event simulation, the new operating system is designed to align the lean strategy with the technical capabilities of the manufacturing line. As confirmed by the simulation, implementation of the new production system is expected to reduce lead time for the cell by 2/3, realize a corresponding one-time reduction in inventory of $350,000, and increase on-time delivery of the cell to over 97%. In total, the project has a three-year net present value exceeding a quarter of a million dollars.
机译:“价值流图”是一种强大的工具,可用于识别废物来源并为生产系统的未来状态创建愿景。但是,作为一种管理工具,它缺少实现未来国家愿景所需的角色,职责和行动的特定重点。当在可用人力资源有限的情况下启动多个价值流项目时,局限性变得更加明显,执行问题也更加严重。本文介绍了一套用于补充价值流图的管理工具。这些工具有望改善管理的可见性和责任感。本文还提出了一种精益生产系统的设计。精益生产系统包括新设计的制造单元布局以及该单元的“操作系统”。该布局基于蜂窝制造的原理,以促进流动并提高质量。操作系统包括生产批量大小,产品路线和战略库存位置等内容。基于未来状态价值流图并得到离散事件仿真的支持,新操作系统旨在将精益策略与生产线的技术能力保持一致。正如仿真所证实的那样,新生产系统的实施预计将使电池的交货时间减少2/3,相应地一次减少库存350,000美元,并将电池的按时交付量提高到97多个%。该项目的三年净现值总计超过一百万美元的四分之一。

著录项

  • 作者

    Gates Matthew David 1973-;

  • 作者单位
  • 年度 2004
  • 总页数
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类

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