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陈明和,吴心晨,谢兰生,王宁,苏楠.复杂结构的钛合金宽弦空心风扇叶片的双层制造工艺及其毛坯优化设计[J].稀有金属材料与工程(英文),2019,48(6):1717~1724.[Minghe Chen,Xinchen Wu,Lanshen Xie,Ning Wang and Nan Su.A two-layer process and the optimal blank design for the hollow titanium wide-chord fan blade with complex geometries[J].Rare Metal Materials and Engineering,2019,48(6):1717~1724.]
A two-layer process and the optimal blank design for the hollow titanium wide-chord fan blade with complex geometries
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Received:January 06, 2018  Revised:March 01, 2018
DOI:
Key words: Hollow wide-chord fan blade  Optimal blank design  Diffusion bonding  Finite element simulation  Titanium alloy
Foundation item:江苏省科技支撑项目(BE2013123)
Author NameAffiliation
Minghe Chen,Xinchen Wu,Lanshen Xie,Ning Wang and Nan Su  
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Abstract:
      This paper concentrates on the forming of a hollow wide-chord titanium fan blade with complex geometries by a more efficient and simple way. A new two-layer process based on hot forming and diffusion bonding is developed. An essential approach for optimal blank design is proposed. The presented process employed a more reliable and controllable method to construct the internal ribbons, instead of the complicated superplastic forming in contemporary multi-layer approaches. To evaluate the practicability, the numerical method is used to investigate the thickness uniformity, structural integrity and skin defects of forming results by ABAQUS. A series of experiments were conducted to validate the simulation results. The Ti-6Al-4V alloy was adopted as the forming material, and blanks optimal designed by the proposed approach were used. The scaled-down version of the hollow wide-chord fan blade was successfully formed without defects. In addition, it is observed that the experimentation and simulation agree well.