Cellular manufacturing: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
'''Cellular manufacturing''' describes a production management system in which the production steps are carried out in several subsystems which are called manufacturing cells. It is a subset of | '''Cellular manufacturing''' describes a production management system in which the production steps are carried out in several subsystems which are called manufacturing cells. It is a subset of [[just in time]] and [[lean manufacturing]] where the use of cells in the manufacturing process makes it possible to combine the advantages of the other two production approaches. The flexibility in production is taken from job production, while the production rate and the effectiveness of the processes are taken from mass production <ref> Chattopadhyay et al., 2013, p. 256; Delgoshaei et al., 2016, p. 132 </ref>. | ||
==Cellular Manufacturing System design== | ==Cellular Manufacturing System design== | ||
Revision as of 13:16, 28 October 2022
Cellular manufacturing describes a production management system in which the production steps are carried out in several subsystems which are called manufacturing cells. It is a subset of just in time and lean manufacturing where the use of cells in the manufacturing process makes it possible to combine the advantages of the other two production approaches. The flexibility in production is taken from job production, while the production rate and the effectiveness of the processes are taken from mass production [1].
Cellular Manufacturing System design
In order to be globally competitive within a production facility and to maximize its productivity, the manufacturing machines must be precisely placed an integrated into the production process. The use of a cellular manufacturing system can be used to keep fixed production costs as low as possible. However, before the cells themselves are considered, it is first necessary to analyze which products are produced and which resources and machines are used for them. With this information, parts with similar production steps or requiring the same resources and machines can be grouped into part families and manufacturing cells can be formed. It must always be taken into account that more than one cell can be needed for the manufacturing of a product [2]. Once it has been determined which machines will be placed in which cell, the layout within the cells must be defined. This intra-cell layout specifies the order in which the machines are placed. To make this arrangement as efficient as possible, the transfer cost for the material flow within a cell (intra-cellular material flow) must be considered. But not only do intra-cellular transfer costs have to be considered, but also the inter-cellular transfer costs. These result from the material flow between two cells (inter-cellular material flow). The goal of every company is to minimize costs, which is why cell formation also aims to keep intra- and inter-cellular transaction costs as low as possible [3]. To finalize the design of the cellular manufacturing system, the part families must be scheduled for production and the resources have to be allocated. Resources include tools, humans, and materials. To achieve the best possible result, all decisions should be made simultaneously, but this is hardly possible. The reason for this is the NP-complete nature and complexity of the decisions, as well as the restrictions of traditional approaches [4].
