Tube Hydroforming Process Optimal Design by Improved Dynamic Programming

2011-01-0236

04/12/2011

Event
SAE 2011 World Congress & Exhibition
Authors Abstract
Content
Due to its capability to make tubular components with high structural rigidity and low mass, tube hydroforming (THF) is an important manufacturing process to make lightweight automotive structural components, such as engine cradles, crank shafts, seat frames, roof bow and instrument panel beam etc. In order to integrate more functions, tube hydroformed components (THC) usually have complex geometry and are formed from a straight tube usually by three stages, which are programmable CNC bending, pre-crush and hydroforming. Since the complexity of component geometry, failures, such as fracture and buckling, could happen simultaneously at different spots. Tube bending and hydroforming process are designed to eliminate multiple failures and thus the THF development is tedious and time consuming. In this study, a multiobjective dynamic programming method is developed to optimize the THF process and demonstrated on an automotive component.
Meta TagsDetails
DOI
https://doi.org/10.4271/2011-01-0236
Pages
7
Citation
Sheng, Z., "Tube Hydroforming Process Optimal Design by Improved Dynamic Programming," SAE Technical Paper 2011-01-0236, 2011, https://doi.org/10.4271/2011-01-0236.
Additional Details
Publisher
Published
Apr 12, 2011
Product Code
2011-01-0236
Content Type
Technical Paper
Language
English