Singh Gurpreet, Sharma Shubham, Seikh A H, Li Changhe, Zhang Yanbin, Rajkumar S, Kumar Abhinav, Singh Rajesh, Eldin Sayed M
Department of Mechanical Engineering, I.K. Gujral Punjab Technical University, Kapurthala, Punjab, India.
Department of Mechanical Engineering, Chandigarh University, Gharuan, Mohali, Punjab, India.
Heliyon. 2023 Aug 22;9(9):e19175. doi: 10.1016/j.heliyon.2023.e19175. eCollection 2023 Sep.
In present investigation, the impact of nanoparticle concentration on the machining accomplishment of Hastelloy C-276 has been examined in turning operation. The outputs like temperature, surface roughness, chip reduction coefficient (CRC), tool wear, and friction coefficient along with angle of shear have been estimated. The graphene nanoparticles (GnP) have been blended into soybean oil in distinct weight/volume ratio of 0.5, 1 and 1.5%. The experimental observations revealed that higher concentration of nanoparticles has enhanced the heat carrying capacity of amalgamation by 12.28%, surface roughness (27.88%), Temperature (16.8%), tool wear (22.5%), CRC (17.5%), coefficient of friction (46.36%) and shear angle (15%). Scanning electron microscopy identified nose wear, abrasion, adhesion and loss of tool coating. Further, lower tool wear has been noticed at 1.5% concentration, while the complete failure of insert has been reported during 116 m/min, 0.246 mm/rev having 0.5% concentration. ANOVA results exhibited that surface roughness is highly influenced by speed rate (41.66%) trailed by feed rate (28.16%) and then after concentration (13.68%). Temperature is dominated by cutting speed (69.31%), concentration (14.53%) and feed rate (13.25%). Likewise, tool wear was majorly altered by cutting speed (67.2%) accompanied by feed rate (23.90%) and thirdly concentration of GnP (5.03%).
在本次研究中，已在车削加工中考察了纳米颗粒浓度对哈氏合金C-276加工质量的影响。已估算了诸如温度、表面粗糙度、切屑缩减系数（CRC）、刀具磨损、摩擦系数以及剪切角等输出参数。已将石墨烯纳米颗粒（GnP）以0.5%、1%和1.5%的不同重量/体积比混入大豆油中。实验观察结果表明，较高浓度的纳米颗粒使混合液的热承载能力提高了12.28%，表面粗糙度提高了27.88%，温度提高了16.8%，刀具磨损提高了22.5%，切屑缩减系数提高了17.5%，摩擦系数提高了46.36%，剪切角提高了15%。扫描电子显微镜识别出刀尖磨损、磨蚀、粘附以及刀具涂层脱落。此外，在浓度为1.5%时观察到刀具磨损较低，而在浓度为0.5%、切削速度为116米/分钟、进给量为0.246毫米/转的情况下，刀片出现了完全失效。方差分析结果表明，表面粗糙度受切削速度的影响最大（41.66%），其次是进给量（28.16%），然后是浓度（13.68%）。温度受切削速度的主导（69.31%），其次是浓度（14.53%）和进给量（13.25%）。同样，刀具磨损主要受切削速度的影响（67.2%），其次是进给量（23.90%），第三是GnP的浓度（5.03%）。
