Process Parameter Correlation in Low Pressure Hydro Forming of 6063-O Aluminium Tubes
Keywords:Hydro-forming, FEA, RSM, Elastic-plastic, 6063, Aluminium.
AbstractThe study is performed to investigate the effects of low pressure tubular hydro-forming process parameters on the protrusion height and percentage change in wall thickness of 6063-O aluminium tubes. A mathematical correlation for these parameters are developed employing Box-Behnken response surface method. The required responses are obtained using a developed finite element model considering elastic-plastic material behaviour and validated. It is inferred that the higher friction induced on the contact surfaces of the components significantly influences the geometrical dimensions of final product. Also, it is suggested that the components require sufficient time period to undergo severe plastic deformation that can be provided by slower rate of loading during process.