Improving the grindability of Inconel 718 by hydrogen embrittlement in ultrasonic-assisted grinding

2021 ◽  
Author(s):  
Sisi Li ◽  
Jiaping Qiao ◽  
Hanqiang Wu ◽  
Jiang Zeng ◽  
Haohao Cui ◽  
...  
Keyword(s):  
Hydrogen Embrittlement ◽  
Inconel 718 ◽  
Ultrasonic Assisted Grinding ◽  
Ultrasonic Assisted

Optimisation of ultrasonic assisted grinding of inconel 718 using grey relational analysis

2021 ◽  
Author(s):  
Sreethul Das ◽  
C. Pandivelan ◽  
M. S. S. Madhava Reddy ◽  
D. Kesava ◽  
Y. A. V. Avinash
Keyword(s):  
Grey Relational Analysis ◽  
Inconel 718 ◽  
Ultrasonic Assisted Grinding ◽  
Relational Analysis ◽  
Ultrasonic Assisted ◽  
Grey Relational

Experimental Research on Surface Roughness of Ultrasonic Assisted Grinding on 7075 Aluminum Alloy

2021 ◽  
Vol 1047 ◽  
pp. 62-67
Author(s):  
Shen Wang ◽  
Le Tong ◽  
Guang Jun Chen ◽  
Mao Xun Wang ◽  
Bin Dai ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Aluminum Alloy ◽  
Processing Parameters ◽  
7075 Aluminum Alloy ◽  
Machined Surface ◽  
Ultrasonic Assisted Grinding ◽  
Great Performance ◽  
Ultrasonic Assisted ◽  
Conventional Grinding ◽  
Micro Morphology

7075 aluminum alloy is widely used due to its great performance, especially in aerospace area. In this paper, ultrasonic-assisted grinding technology is used to process 7075 aluminum alloy. The data is obtained through experiments, and the surface roughness and morphology of ultrasonic assisted grinding and conventional grinding under different spindle speeds, feed rates, and amplitudes are analyzed. Research has found that the increase in spindle speed and amplitude will improve the quality of the machined surface and reduce the surface roughness by 82.1% and 36%. However, with the increase of feed rate, the surface quality decreased significantly, and the surface roughness increased by 55.6%. The surface micro-morphology of the machined workpiece is observed, and the effects of different processing parameters on the surface micro-morphology are obtained.

Micro-/Nano-texturing by Ultrasonic-Assisted Grinding

2018 ◽  
pp. 247-299
Author(s):  
Masayoshi Mizutani ◽  
Shaolin Xu ◽  
Keita Shimada ◽  
Tsunemoto Kuriyagawa
Keyword(s):  
Ultrasonic Assisted Grinding ◽  
Ultrasonic Assisted

Experimental Study on the Mechanism of Axial Ultrasonic-Assisted Grinding

2012 ◽  
Vol 490-495 ◽  
pp. 2449-2453
Author(s):  
S.X. Yuan ◽  
M. Xiao
Keyword(s):  
Experimental Study ◽  
Grinding Force ◽  
Paper Analysis ◽  
Kinematics Model ◽  
Ultrasonic Assisted Grinding ◽  
Ultrasonic Assisted ◽  
Conventional Grinding

This paper analysis the mechanism of axial ultrasonic-assisted grinding(AUAG), by establishing the kinematics model of a single grit; The reason why AUAG forces are more lower than conventional grinding(CG) forces is presented, and the experiments of the grinding force in AUAG comparison with CG were carried out. The results indicate that the grinding force of the superalloy in AUAG is about 40% to 50% less than that in CG.

Experimental Study on Ultrasonic Assisted Grinding of C/SiC Composites

2014 ◽  
Vol 620 ◽  
pp. 128-133 ◽  
Author(s):  
Kai Ding ◽  
Yu Can Fu ◽  
Hong Hua Su ◽  
Tao He ◽  
Xi Zhai Yu ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Brittle Fracture ◽  
Grinding Force ◽  
Specific Grinding Energy ◽  
Ultrasonic Assisted Grinding ◽  
Ultrasonic Assisted ◽  
Conventional Grinding ◽  
Carbide Matrix ◽  
Sic Composites ◽  
Material Removal Mode

In the present work, ultrasonic assisted grinding (UAG) and conventional grinding (CG, without ultrasonic) tests of Carbon fiber reinforced silicon carbide matrix (C/SiC) composites were conducted. In addition, analysis was done by comparing the machining quality, grinding force, and specific grinding energy between the two processes. The results showed that material removal mode of carbon fiber both in CG and UAG were brittle fracture, and fracture size had no obvious difference. Compared with CG, brittle fracture area of SiC increased during UAG. In comparison with CG, the normal grinding force and tangential grinding force for UAG were reduced maximally by 45%, 39% respectively of those for CG. Accordingly, specific grinding energy was also reduced by UAG. Therefore, UAG can improve the grinding performance of C/SiC composites significantly.

Study on surface/subsurface breakage in ultrasonic assisted grinding of C/SiC composites

2017 ◽  
Vol 91 (9-12) ◽  
pp. 3095-3105 ◽  
Author(s):  
Kai Ding ◽  
Yucan Fu ◽  
Honghua Su ◽  
Fangfang Cui ◽  
Qilin Li ◽  
...  
Keyword(s):  
Ultrasonic Assisted Grinding ◽  
Ultrasonic Assisted ◽  
Sic Composites
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