New PDF release: Computer-Aided Design and Manufacturing: Methods and Tools

By H. Grabowski, R. Anderl (auth.), Prof. Dr.-Ing. Ulrich Rembold, Dr.-Ing. Rüdiger Dillmann (eds.)

ISBN-10: 3642827489

ISBN-13: 9783642827488

ISBN-10: 3642827500

ISBN-13: 9783642827501

Manufacturing contributes to over 60 % of the gross nationwide fabricated from the hugely industrialized countries of Europe. The advances in mechanization and automation in production of foreign rivals are heavily not easy the industry place of the eu nations in several components. hence it turns into essential to raise considerably the productiveness of ecu undefined. This has caused many governments to help the improvement of latest automation assets. solid engineers also are had to improve the necessary automation instruments and to use those to production. it's the function ofthis ebook to debate new learn ends up in production with engineers who face the problem of creating tomor­ row's factories. Early automation efforts have been founded round mechanical gear-and-cam know-how and hardwired electric regulate circuits. as a result of lowering existence cycle of so much new items and the large version diversification, factories can't be automatic successfully any longer by way of those traditional applied sciences. With the electronic machine, its speedy calculation pace and massive reminiscence ability, a brand new instrument was once created which may considerably increase the productiveness of manufactur­ ing techniques. the pc can at once keep an eye on creation and caliber insurance services and adapt itself fast to altering purchaser orders and new products.

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An increase in the average quality of labour. Thus, whilst (2) and (3) above are desirable aims, they do not necessarily help to increase total productivity as defined and it is quite possible to increase labour productivity whilst at the same time reducing total productivity. Taking a hypothetical example, if a company is persuaded to install a machine costing $100,000 and which effectively does a job equivalent to one worker, the effect will clearly be to improve labour productivity. However, since it is unlikely to be economic to spend $100,000 to replace one worker, the capital is not being used efficiently and total productivity will fall.

2 Classification and Coding for Automatic Insertion If mechanised or automatic assembly is being considered, it is essential that an accurate estimate can be made of how much the assembly equipment will cost in terms of the amount attributable to each product produced by the system. It is only by having this information that a quantitative rather than a qualitative estimate of assembly costs can be made and the effect of re-design of the product for assembly on costs can be determined. Conversations with those responsible for submitting proposals to justify automatic assembly have indicated that, in general, those with ultimate responsibility for decision making on capital expenditure projects are unimpressed by vague assurances of the viability of a project but require a strong indication of the financial implications of various courses of action.

A C"l N N N _1;:. ,g8~g e a 1 e a I h~ 2 1 ~. U~ ~ e a i H ,... i 1;:. U N c N co r-j j B __ 311. 3111311. A 15" -< ~. ... '" .! v ... 0 ... 00 .... '" .... ... '" ~ f ,... G is Q z '" ... f l- ... '" ~ c '" .... ! siuqe-uou pue news ;;ue sped '-- Fig. 9. Difficulty levels for difficult to feed parts 'course' results of a survey have indicated that a surprisingly large number of small parts fall into one of the designated categories. A first digit of 9 indicates a special category of parts for which conveying and orienting are difficult for reasons other than those concerned with basic shape.

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Computer-Aided Design and Manufacturing: Methods and Tools by H. Grabowski, R. Anderl (auth.), Prof. Dr.-Ing. Ulrich Rembold, Dr.-Ing. Rüdiger Dillmann (eds.)


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