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Affiliation of Author(s):机电学院

Journal:RARE METAL MATERIALS AND ENGINEERING

Key Words:hollow wide-chord fan blade optimal blank design diffusion bonding finite element simulation titanium alloy

Abstract:A new two-layer process based on hot forming and diffusion bonding for forming a hollow titanium wide-chord fan blade with complex geometries was developed. An essential approach for optimal blank design was proposed. The present process employed a more reliable and controllable method to construct the internal ribbons, instead of complicated superplastic forming. To evaluate the practicability, a numerical method was used to investigate the thickness uniformity, structural integrity and skin defects of forming results using ABAQUS. A series of experiments were conducted to validate the simulation results. The Ti-6A1-4V alloy was adopted as the forming material, and blanks optimized by the proposed approach were used. The results show that a scaled-down version of the hollow wide-chord fan blade without defects is successfully formed. In addition, it is observed that the experimentation and simulation agree well.

ISSN No.:1002-185X

Translation or Not:no

Date of Publication:2019-06-01

Co-author:Wu Xinchen,xls,Wang Ning,wangning,Su Nan,sax

Correspondence Author:cmh