one of the most important issues about production structure and measurement of factors utilization in industry is the study of substitutability among the production factors. while, energy, for its particular features like finite and the direct relationship between energy usage and air pollution; and specifically abundance of energy resources and allocation of subsidies to different energy carri...

An experimental study was performed with the aim of developing a technique for manufacturing composite parts for use in dynamic robotic applications in lieu of heavy and expensive metal parts used in conventional robotic systems. There is already a wide usage of sandwich board materials in load bearing applications, but these do not provide equal strength in all directions, particularly compres...

Resin transfer moulding (RTM) is a widely used process for manufacturing composite parts. It is currently gaining market shares compared to autoclave process in particular for high performance applications, such as aerospace, thanks to its higher versatility permitting the manufacturing of complex and high quality composite parts in fairly short cycle times. The major disadvantage of RTM remain...

Development of information technology industry provided great possibilities in the area of integration of diff erent CAx systems, such as CAD, CAM, CAE and others. In order to successfully link systems of automated-design (or Computer Aided Design CAD) with automated manufacturing systems (or Computer Aided Manufacturing – CAM), automation of manufacturing process planning is needed, i.e. CAPP ...

Parts produced by additive manufacturing (AM) often require post processing to improve surface finish and mechanical properties. However, little attention has been given to including deformation in the post processing. Deformation post-processing can address some part size, manufacturing cost, and geometry limitations of 3D printing. Additionally, it could be used to create 3D surfaces using pl...

The usage of features in computer aided design and manufacturing has increased significantly over the last decade. By and large, all such features are geometric (form features). In this paper, we shall discuss the need to go beyond current geometric features and consider material -composition, and gradation -within the object. This need has been brought about by layered manufacturing technologi...

Additive manufacturing techniques can produce complex, high-value metal parts, with potential applications as critical metal components such as those found in aerospace engines and as customized biomedical implants. Material porosity in these parts is undesirable for aerospace parts - since porosity could lead to premature failure - and desirable for some biomedical implants - since surface-bre...

Additive Manufacturing differs in some characteristics from conventional manufacturing techniques. The core of additive techniques is a manufacturing process building up parts layer by layer. Furthermore, it is possible to include functionality into monolithic parts, which are built up within one process without the need of assembly. The research objective of this paper is the identification of...

(Extended Abstract) I. INTRODUCTION Moore's Law and the market requirements for higher perfor­ mance chips are driving the production of increasingly smaller transistors, and therefore, are forcing more stringent controls on semiconductor manufacturing processes and equipment, with a very small room for error. The second trend in the semiconductor industry is the adoption of the e-Manufacturing...