Manufacturing Systems: Theory and Practice by George Chryssolouris (auth.)
By George Chryssolouris (auth.)
Manufacturing structures: idea and perform, moment Edition, presents an summary of producing platforms from the floor up. it really is meant for college students on the undergraduate or graduate point who're attracted to production, training engineers who wish an summary of the problems and instruments used to handle difficulties in production platforms, and bosses with a technical historical past who are looking to develop into extra acquainted with production matters. The e-book has six chapters which were prepared in accordance with the series used while developing and working a producing approach. therefore, the themes emphasized are: the choice framework for production, the producing tactics, the producing gear and computing device instruments, the layout for production and the operation of producing platforms. The e-book makes an attempt a compromise among concept and perform in all addressed production structures concerns, overlaying a protracted spectrum of concerns from conventional production methods to cutting edge applied sciences akin to digital truth, Nanotechnology and fast Prototyping.
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Production platforms: conception and perform, moment variation, offers an outline of producing platforms from the floor up. it really is meant for college kids on the undergraduate or graduate point who're drawn to production, working towards engineers who wish an summary of the problems and instruments used to handle difficulties in production platforms, and bosses with a technical history who are looking to develop into extra conversant in production concerns.
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Let us assume that there is a 70% probability that the next product to be manufactured will be product 1, and a 30% probability that it will be product 2. Let us also assume that product 1 is more similar to the currently manufactured product, and therefore can be accommodated on system A with only $20 million in modifications, as opposed to $50 million in modifications for Product 2. System B is a dedicated system which must be completely replaced (at a cost of $80 million) in order to accommodate any product change.
On the other hand, the response of the real system, which is not empty and has to manage different orders, under real conditions, results in time "delays". This means that the orders spend typically, more time in the system than the absolute required processing time, namely, the orders "flow" through the system for periods called Flow Times. An "ideally flexible" MFG system will then have zero delays in responding to incoming orders, and the Processing and Flow Times will be identical. In general, the smaller the discrepancy between Processing Times/input and Flow Times/output is, the better an MFG system behaves and the more it is able to respond to the incoming demand.
The responsiveness of the system to changes will be discussed later on, in the section of flexibility. • How quickly a product can be produced by the system - usually expressed as the production rate of the system. Production rate affects, directly or indirectly, all other types of attributes. Higher production rates typically result in lower cost and possibly lower quality as well. Furthermore, to achieve high production rates, it is often necessary to resort to automation, which may have an impact on the flexibility of the system.