An Analytical Model for Spring-Back Prediction in U-Channel Forming with Advanced High Strength Steel AK Steel Corporation

Format:

Conference/Event

Author/Creator:

Jia, Jia, author.

Contributor:

Pu, Chao

Wang, Youwei

Zhu, Feng

Conference Name:

WCX World Congress Experience (2018-04-10 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2018

Summary:

AbstractSpring-back phenomena are critical in stamping procedures for advanced high strength steel. An analytical model is developed to predict the spring-back effect for a U-channel part with post-stretching process. The stress distribution is obtained by direct application of material constitutive relationship. The subjected loading conditions are sequentially bending, (un-bending), and uniform stretching, based on different zones in the part. Both the loading history and the friction effects are considered in the model. The bending moments are obtained to generate a theoretical spring-back shape. Great performance in spring-back control is achieved by applying certain high level of external forces. FE simulation is conducted for the identical stamping process with post-stretching. Good correlation is observed between the analytical and numerical solutions/experimental results under various scenarios

Notes:

Vendor supplied data

Publisher Number:

2018-01-0805

Access Restriction:

Restricted for use by site license