AYCAN PARLAK 030060129 - First Week

Selective Laser Sintering

The selective laser sintering process is a thermal process that uses a laser to sinter (fuse) layers of powdered thermoplastic materials together to form solid 3D objects. The powder needs fine grains and thermoplastic properties so that it becomes viscous, flows, and then solidifies quickly. Its chief advantages revolve around material properties. A variety of thermoplastics such as poltcarbonate, nylon or glass-filled nylon.(Rapid Prototyping And Engineering Applications,Frank W. LIOU, CRC Press,2008,p. 271)


Fused Deposition Modelling(FDM)

FDM is a nonlaser filament extrusion process tahat utulizes engineering thermoplastics, which are heated from filament form and extruded in very fine layers to build each model from the bottom up. The model can be made from acrylonitrile, ABS, polycarbonate, poyphenylsulfone, and various versions of these materials. Furthermore, the models are tough enough to perform functional tests.(Rapid Prototyping And Engineering Applications,Frank W. LIOU, CRC Press, 2008, p.257)

Productivity

Productivity is a relationship between the output of goods and services and one or more of the inputs --- labor, capital, goods, and naturel sources. It is expressed as a ratio of outputs to input. Both output and input can be measured in different ways, none of them being satisfactory for all purposes. The most common way of defining and measuring productivity is output per man-hour, usually referred to as labor productivity. This measure of productivity is easy to understand and it is the only measure for which reliable data have been acumulated over the years. (Assenbly Automation And Product Design,Geoffrey Boothroyd, CRC Press, 2005, Second Edition, p.6-7)

Electronic Data Interchange(EDI)

EDI is aconcept that has been in commercial use fore more tahn 30 years, ıt is widely accepted by companies all over the world as the way to electronically exchange business data.

Over the years ,we have seen a variety of inter pretations of the term EDI. A common and basic defination of EDI is the transfer of business data between computer applicatios using a mutually agreed standard to describe the data contained in the message. (Implementing EDI Solutions, G. Van de Putte, K. Bathini, K. Chandu, IBM Redbooks, 2003, p.2)