Thursday, February 24, 2011

Buğra Cengiz 030060178

Sintering
Sintering brings about the removal of pores between the starting particles (accompanied by shrinkage of the component), combined with strong bonding between the adjacent particles. The primary mechanisms for transport are atomic diffusion and viscous flow. In some cases, hot die pressing is employed, whereby pressure and temperature are applied simultaneously to accelerate the kinetics of densification. Only a limited number of shapes can be produced by this technique.
John Martin, Materials for Engineering, P.157


Life Cycle Engineering
Aims to provide a set of referance models, architecture, methhodogies tools and techniques to integrate these important cycles in manufacturing enterprises

Arturo Molina,José Manuel Sánchez, Handbook of Life Cycle Engineering: Conceps, Models and Technologies. P.11

Parametric Design
The need for parametric design emerged once it became apparent that the impact of conventional CAD systems on industrial productivity is limiyed. This limitation is due to the fact that early CAD systems where developed following the drafting paradigmi where the draft-person is responsible for all the details embedded in a paper drawing. The drafting paradigm does not protect the design from inevitable human errors. Consequently, engineering changes introduced during the life-cycle of a product often require the laborious redesign of the product or component, even in aread ehich should not be directly affected by the design change.
Parametric design attempts to overcome these limitations  and thus, obtain a significant-additional improvemet in industrial productivity. Parametric design may be viewed as an extension of featıre-based design, such that not only the different features are parametrized but also the geometric inter-relationships between features are expressed parametricly. In principle, if all geometries are expressed through parametric relationships than any design change can invoke an automatic reconstruction of the design, based ın the parametric structure and design rules.

Dorf, R.C., Kusiak, A., Handbook of Design, Manufacturing and Automation, 1994, John Wiley & Sons, Inc.,pg.125


TO BE CONTINUED...

 

8 comments:

  1. @Life Cycle Engineering
    “LIFE CYCLE ENGINEERING” WAS TAKEN BEFORE YOUR ANSWER. YOU SHOULD TAKE ANOTHER TERM.

    ReplyDelete
  2. "sintering” was taken before your answer. please change it.

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  3. Do you have any notrification? I defined sintering and annealing after just you listed your terms. This is not healty. because The editing time is not shown by the blog.

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  4. This is a serious problem, editing times not shown under etries. It is bug of this system and has to be managed as soon as possible.

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  5. there is nothing i can do, we dont get any notification unfortunately.

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  6. it can be good solution that each terms must define in one entry.( Everybody must have 4 entry for one week) so the time of defining terms will had been shown.

    ReplyDelete
  7. You should talk about it with Mr. Kececi.
    The problem is happening because of blogspot.

    ReplyDelete