Feature Article Figure 3. Schematic of through thickness partial resin impregnation to facilitate 'EVaC' which supports edge breathing Figure 4. Schematic of bagging and edge breathing path (black arrows). * Tiles do not require time consuming detail laminating due to their compliancy. * Better utilization of customer assets - laminators can spend less time building tools and more time building profitable parts. * Increased numbers of tools available to support part building (master exists) subsequent tools can be quickly built from existing master to support rate demands. applicable to VBO (Vacuum Bag Only) concepts, the difference in the case of DForm® is that the final cure utilizes the autoclave, so the EVaC's are used instead to remove much of the air and any volatiles prior to augmented pressure from the autoclave. A further additional benefit of the EVaC formatting in this material is the enhanced compliancy it provides to the multilayer tile. Experimentation Brief overview of some of the key topics that supported the product launch of the DForm® format: * Edge breathing effectiveness and subsequent void content in cured laminates * Surface finish assessment and hardness * Tool life cycling * Intrinsic springback or angular rotation of simple 90 degree flanges * Force required to facilitate compliancy, bridging and radii formation Edge Breathing Trials To review the effectiveness of edge breathing (removal of air and volatiles from the material and layup process) in the XY plane, screening work was carried to assess laminate void content at points farthest away from the source vacuum (Figures 6, 7 and 8). Effective EVaC's are a function of suitable matrix rheology and dry fibers. This work essentially is the same established theory SAMPE Journal, Volume 52, No. 6, November/December 2016 Figure 5. Man hours potentially saved vs surface complexity and size. 9