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论文作者:www.51lunwen.org论文属性:本科毕业论文 Thesis登出时间:2015-06-03编辑:felicia点击率:30439
论文字数:15571论文编号:org201505262313039095语种:英语 English地区:英国价格:免费论文
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摘要:对于一个企业而言,工作中掌握良好的工作方法可以有效提高工作效率和工作质量,推动企业的发展。这篇文章就围绕工作方法进行具体阐述。
3.3 Flow Improvement
As discussed in the earlier chapter, kanban production control method is used to create “pull” in the workplace such that all the machines get the required work piece before they start working. This could save a considerable amount of waiting time in the shop floor. To implement this, production is organized in such a way that the product follows the same sequence through the factory on dedicated equipment.
As said, Kanban works by limiting the inventory between each step in a production process. Cards are created for each process step. Work cannot begin at a particular step until that step receives a card from the upstream process. Work therefore does not build up between work centers because the number of cards is limited. Kanban is the ultimate form of “pull” production because every step waits from the downstream step to signal or pull material rather than just produce what is placed in front of the process.
This system is used to reduce the setup time in the cell, which in turn helps to reduce the non value added time found in the setup process. The main idea behind this is to make sure the part, tools and programs are made available before the start of any new work. A card system is used which links plant production control, Machinist, Tool crib and coordinator to improve the flow in the process.
The main duty of the production control in this system is to assign the material for the next job to the right machine. The material is placed on a rack near to the machine by production control, and as soon as the operation for the previous job is completed the new work piece is moved from the rack to the machine which cuts the delay in search for the next job. Production control's duty extends to complete the initial paper work so that it would be easy for the machinist to concentrate on his/her work. Production control also writes down the job id on a board near the machine to have visual control on the work which is being done.
Prior to the implementation of this system a job is picked randomly without control which drastically affects the production schedule, now with this system the machinist can understand which job is going to be next, and this helps the machinist to reduce the uncertainty in a high mix low volume environment, and to gain confidence in the process.
Once the initial duties of the production control is over the card is handed over to the tool crib. It is the place where all the tools for different works are handled in the shop floor. The role of the tool crib is to help reduce the machinist time, who spends a lot time in search of the right tools. In most cases the machinist walks around the shop floor searching the right tools which could be otherwise used for working on a new work piece. This unwanted movement increases the setup time and naturally increases the run time of the product. To cut down any unwanted movement of the machinist in the shop floor, the tool crib works in this system to c本论文由英语论文网提供整理,提供论文代写,英语论文代写,代写论文,代写英语论文,代写留学生论文,代写英文论文,留学生论文代写相关核心关键词搜索。