• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2024, Vol. 60 ›› Issue (21): 349-364.doi: 10.3901/JME.2024.21.349

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Two-dimensional Ultrasound-assisted Belt Grinding Method Based on Phase Regulation and its Effect on the Surface Integrity of GH4169

LI Shaochuan1,2, XIAO Guijian2,3, CAO Huajun2,3, WANG Yingxin2, ZHAO Zeyong2, ZHUO Xiaoqin2, HUANG Yun2,3   

  1. 1. College of Mechanical and Electrical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002;
    2. College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044;
    3. State Key Laboratory of Mechanical Transmissions, Chongqing 400044
  • Received:2023-12-08 Revised:2024-05-11 Published:2024-12-24

Abstract: Nickel-based superalloys are prone to surface damage during machining, and its service performance has strong correlation with surface texture and defects. Meanwhile, complex load puts forward isotropic processing requirements. Combining flexible and low damage of belt grinding and texture optimization of ultrasonic-assisted machining, two-dimensional ultrasonic-assisted belt grinding method is proposed. The abrasive trajectory under different parameters is analyzed, and the influence of ultrasonic direction, amplitude and phase on material removal is analyzed based on single-particle scratch test. The influence of process parameters on surface integrity and uniformity of GH4169 is also revealed. Results show that two-dimensional ultrasonic-assisted belt grinding has texture optimization effect, and can obtain uniform plastic deformation layer. Reticulum-like texture can be prepared and the anisotropy of surface integrity can be suppressed. Phase difference of 90°improves surface integrity and consistency. Large amplitude can increase residual compressive stress and reduce surface roughness. Low feed speed result in small roughness and large residual compressive stress.

Key words: ultrasonic assisted grinding, planar two-dimensional ultrasonic vibration, abrasive belt grinding, surface integrity, anisotropy, GH4169

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