Near-Term Demonstration Machine

For thermoplastic laminates the material obviously needs to be heated before entering the roller region. Induction (450 kHz.) was selected as the means for doing this. The basis for the selection was its noncontact nature and its ability to heat through the thickness quickly. Use of induction was also predicated on the fact that most components of interest utilized graphite fibers, which had the required electrical conductivity. A great deal was learned about the 

E3 X-Z Table run Table Motors tSSj Spring Hi Cluster Roller m Induction Coils 

To start this determination, Ramani and Vinci performed a series of forming experiments using specially made laminates [14], One laminate had a preponderance of fibers along the longitudinal direction the other along the transverse direction. The first (Fig. 14.11a) showed 

Overcurvature is strong, (b) Photograph of a formed Gr/PEEK laminate containing mostly transverse plies. Overcurvature is absent 

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Figure 14.9 Photograph of a Gr/PEEK laminate in which a bend was introduced and propagated into the workpiece using the near-term demonstration machine with a variable velocity profile. Fiber alignment, surface quality, and macroscopic shape are good...

The surface characteristics of a microfluidic channel are very important in determining the flow in electrokinetically driven systems. In electrokinetically driven systems, the bulk flow is created by movement of the mobile diffuse layer near the channel wall/solution interface that is termed electroosmotic flow (EOF). The EOF is dependent on the surface of the microchannel walls. Roberts et al. demonstrated the generation of EOF on laser-ablated polymer substrates for the first time, using the parallel processing mode with a photomask and an ArF excimer laser at 193 nm [17]. A variety of polymer substrates such as polystyrene, polycarbonate, cellulose acetate, and poly(ethylene terephthalate) (PET) were ablated to fabricate microfluidic channels. The laser ablation process alters the surface chemistry of the machined regions and produced negatively charged. 

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