6533b825fe1ef96bd1283397

RESEARCH PRODUCT

A simple experiment to characterize material formability in tube hydroforming

Fabrizio MicariLivan FratiniL. Fllice

subject

Hydroformingbusiness.product_categoryMaterials sciencebusiness.industryMechanical EngineeringNumerical analysisProcess (computing)Structural engineeringIndustrial and Manufacturing EngineeringFinite element methodFracture (geology)FormabilityDie (manufacturing)Tube (container)business

description

Abstract In tube hydroforming processes an internal fluid pressure is utilized to form the material on a properly shaped die; during the process the material axial movement is favoured by the axial feeding of an active punch. In the paper a simple experiment is presented aimed to investigate the influence of the main process variables on material formability. This equipment has enabled an extensive experimental investigation; furthermore a numerical analysis based on the finite element technique has been performed and a ductile fracture criterion has been implemented to predict the insurgence of bursting defects.

https://doi.org/10.1016/s0007-8506(07)62100-3