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Process Design Optimization of Stamp Forming of a Thermoplastic

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Process Design Optimization of Stamp Forming of a Thermoplastic Composite Shear Rib

 

This paper presented a surrogate-based optimization framework developed to find the optimal process parameters for stamp forming a half-scale thermoplastic composite shear rib. Using a design of experiment based on the optimal Latin Hypercube sampling method an extensive experimental study has been conducted to evaluate the effect of infrared heater settings (e.g., set temperature, ramp rate, holding time after heating, and power offset for corner and midpoint heaters) on the normalized part temperate and cycle time as well as the effects of hydraulic press settings (e.g., initial part temperature, press closing speed pressing force, dwelling time, and tool temperature) on the normalized degree of crystallinity and warpage of a stamp formed shear rib. Using experimental data, accurate surrogate models have been developed to relate output responses to the input setting parameters. These models have then been effectively utilized in multi-objective optimization problems to identify the optimal process parameters.

 

Author: Xiao Cai

 

Conference: SAMPE Seattle 2017

 

SKU/Code: SE17--0714

Pages: 13



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