H企业单件小批量订单排产的优化

Optimization of Single Small Batch Order Production in H Factory

由于单件小批生产模式的生产标准化程度较低,同时用户订货提前期长,需要制定详细的生产计划来使企业更好地运营,因此如何提高单件小批生产运作类型的效率便成为生产运作管理最为关注的问题。文中H企业是典型的单件小批量生产企业,是订单驱动的生产模式,产品的类型与数量都是由客户的需求而定,面对的客户主要是国内外的大型电厂和船舶企业,所以很多订单对交货期有着很严格的要求,因此制定合理的生产计划就变得尤为重要。本文就是结合H企业的实际生产运营状况,运用TOC理论对企业产能进行分析,找出瓶颈工序,同时综合考虑企业交付能力、生产紧迫度、加工时间等多方面因素运用运筹学的相关方法,对企业的生产制定出详细的年生产计划,使设备运行效率提升9.3%,相应单位生产支出降低12%,平均生产周期由150d减少到120d,极大改善企业的现有状况,提高企业的运营成本。

Due to the low standard of single small batch production mode and the long lead time of user’s order,it is necessary to develop detailed production plan to make the factory operate better.Therefore how to improve the efficiency of small batch production and operation types has become the most concern of the production and operation management.In this paper,H factory is a typical single small batch production factory,which has an order driven production mode.The type and quality of products are determined by the customer’s needs.The clients are mainly domestic and overseas large power plants and ship enterprises,which has very strict requirements for the delivery time of orders.So it is particularly important to develop a reasonable production plan.Based on the actual production and operation of H factory,using TOC theory to analyze the production capacity,the bottleneck process has been found out.At the same tim e,considering the delivery capacity,production urgency,processing time the other factors,operational research methods is used to develop detailed annual production plan.It can increase efficiency by9.3%,decrease unit production expense by12%and reduce the average production cycle from150D to120D.It can greatly improve the current situation and raise operating costs of factory.