【作者】 刘义；

【导师】 陈宗建；

【作者基本信息】 华中科技大学 ， 工商管理（专业学位）， 2021， 硕士

【摘要】 A公司作为铁路装备制造企业,其母公司在全球处于领先地位,而其在中国的发展却停滞不前。面对中国铁路技术的高速发展及国内日趋激烈的竞争,A公司需要不断提升自身能力;面对对手的不断壮大,精益生产的实施也显得刻不容缓。本文从A公司现状出发,分析了在达产阶段和超产阶段的目标及生产流程中存在的问题。达产阶段主要运用5why法、数据分析对比、PDCA等方法,分析设备效率低、原材料质量不稳定、人员架构不合理、检测效率低等问题,制定了改善方案;超产阶段通过提升设备利用率、制定班组计件奖励机制等精益改善方案提高生产线产量,同时通过实施进口模具供应国产化、供应商退磁工艺移到厂内在线处理、增加钢材采购技术标准中的定尺要求、改善剪切刀具结构延长寿命等改善措施,达到降低成本目的。在方案的设计、实施过程中,集中力量、联合多部门一起对问题根源、精益改善方案的细节及实施步骤进行确认,跟踪每个精益改善项目的实施过程,并利用PDCA闭环管理控制精益生产方案的实施。最后对改善前后效果做了对比分析,最终确认各阶段指标都顺利完成,并计算出在整个项目上该精益改善给企业所带来的直接或间接经济效益。本文的研究方法、研究工具、改善方案对其他批量生产企业、流水线生产企业、中小企业的精益生产、精益管理实施具有一定的指导和借鉴意义。更多还原

【Abstract】 Company A is a railway equipment manufacturing.Its parent company is an absolute leader in the world,but Its development in China has stalled.With the rapid development of Chinese railway technology and the increasingly fierce competition in the domestic market,Company A needs to constantly improve its ability.Facing the continuous growth of opponents,the implementation of lean production is urgent.According to the current situation of Company A,this thesis analyzes the objectives and problems in production process in the stage of reaching and overfulfilling the basic production target.To analyze and formulate the lean improvement plans with low equipment efficiency,unstable raw material quality,unreasonable personnel structure and low detection efficiency,the stage of reaching the basic production target mainly uses five-why analysis,data analysis and comparison,PDCA and other methods.In the stage of overfulfilling the basic production target company A improve the production output by improving equipment utilization rate,and other lean improvement plans such as team planning reward mechanism.At the same time,the cost is reduced through the localization of imported mold supply,doing demagnetization process to replace supplier,increasing the sizing requirements in technical standards for steel procurement,and improving the life extension of cutting tool.In the design and implementation of lean production scheme,company A concentrated on workshop main force.And working together with other departments to confirm the root cause and the details of lean improvement scheme,track the implementation process of each lean improvement project,and use PDCA closed-loop management to control the implementation of lean production scheme.Finally,this thesis also makes a comparative analysis for the improved effects and confirmed that the KPI of each stage were successfully completed.And the direct or indirect economic benefits brought by the lean improvement to the enterprise in the whole project were calculated.The research methods,tools and improvement scheme of this paper also have certain guidance and reference significance for the implementation of lean production management in other mass production enterprises,minor enterprises.更多还原