Loading path optimization of tube hydroforming process

The multi-objective optimization of the loading paths for T-shape tube hydroforming using adaptive support vector regression

“…The axial punch displacement curves are similar in many reports and usually consist of two stages [9,24,25,53,54]. Therefore, the variation of the axial punch displacement curve can be modeled by two points: (D 1 , t 3 ), (D 2 , 0.03).…”

Numerical and experimental study on large deformation of thin-walled tube through hydroforging process

“…On the contrary, excessive axial feed leads to wrinkling and buckling, which have a strong impact on forming quality. The reasonable loading path, therefore, is a key to prevent the occurrence of these defects, which becomes the main concern for researchers [6][7][8][9]. For recent years, a new loading path called as pulsating hydroforming process of tubes has been developed based on the computer accurately controlling and verified to prevent the thickness of tube wall thinning and obtain a uniform expansion, which can effectively improve the formability [10][11][12].…”

Surveying Various Effective Parameters on a Y-Shape Parthydroforming Using FEM and Process Optimization by Numerical Methods

“…Imaninejad et.al [13], acquired optimized loading path for an aluminium T-shape hydroforming using both optimization and FE methods. In their study, internal pressure was linear and constant through the process and optimization was just applied on axial feeding.KashaniZadeh et.al [14,15], simulated the effect of friction coefficient, strain hardening exponent and fillet radius on protrusion height, thickness distribution and clamping and axial forces for an unequal T joint.…”