混合Al2O3-TiO2纳米切削液在数控车削加工中的应用效果

A. Arifuddin, A. Redhwan, A. M. Syafiq, S. Z. Zainal Ariffin, A. Aminullah, W. Azmi
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引用次数: 0

摘要

本研究的目的是在选定的由纳米浓度、切削深度和进给速率组成的重要加工参数下,评估混合Al2O3-TiO2纳米切削液在车削工艺应用中的有效性。研究了水性杂化Al2O3-TiO2水性纳米切削液的制备及其在车削加工中的应用。采用一步法制备了Al2O3-TiO2杂化纳米切削液;通过将Al2O3(平均直径30nm)和TiO2(平均直径30-50nm)的纳米颗粒以四种不同的体积浓度(1%、2%、3%、4%)分散在CNC冷却剂中。在AA7075铝合金车削过程中,通过MQL装置冲击的空气辅助纳米切削液评估了车削切削性能的有效性,即切削温度(°C)、平均表面粗糙度(Ra)和刀具磨损(%)。实验设计采用响应面法(RSM)。当混合纳米切削液浓度为4%、进给速度值为0.1mm/rev和切削深度为0.3mm时,获得的最低切削温度、表面粗糙度和刀具磨损分别为25.8°C、0.494µm和0.0107%。本文的研究结果是基于对Al2O3-TiO2杂化纳米切削液的数控车削实验研究。该过程侧重于使用精加工镶片的精加工过程。可以建议使用粗加工工艺进行进一步的工作,以观察使用纳米切削液的这种切削工艺在降低磨损率方面的更好性能。将Al2O3-TiO2杂化纳米切削液与MQL结合用于数控车削工艺被认为是一种新的方法。加工柔软细腻的材料(如铝)应考虑使用这种组合技术,因为它可以降低切割温度并去除碎屑,减少粘合剂磨损。混合纳米切削液可以取代传统的切削液,如果与MQL冷却技术相结合,性能会更好;这种新方法应该被需要高精度成品的主要行业参与者考虑,比如涉及飞机和航空航天应用的产品。
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Effectiveness of hybrid Al2O3-TiO2 nano cutting fluids application in CNC turning process
The purpose of this study is to evaluate the effectiveness of hybrid Al2O3-TiO2 nano-cutting fluid in the turning process application under the selected significant machining parameters consisting of nano concentration, depth of cut and feed rate. The preparation of aqueous hybrid Al2O3-TiO2 water-based nano-cutting fluids and their application as the cutting fluid in turning operations are undertaken. The Al2O3-TiO2 hybrid nano-cutting fluids were prepared through a one-step method; by dispersing nanoparticles of Al2O3 (average diameter 30 nm) and TiO2 (average diameter 30-50 nm) in CNC coolant based at four different volume concentrations (1%, 2%, 3%, 4%). The effectiveness of turning cutting performance, namely cutting temperature (°C), average surface roughness (Ra), and tool wear (%), were assessed via air-assisted nano cutting fluids impinged through MQL setup in turning of Aluminium Alloy AA7075. The response surface method (RSM) was employed in the design of the experiment (DOE). The lowest cutting temperature, surface roughness, and tool wear of 25.8°C, 0.494 µm, and 0.0107%, are obtained, respectively, when the combinations of hybrid nano cutting fluid concentration of 4%, feed rate value of 0.1 mm/rev, and 0.3 mm depth of cut is used. The result in this paper is based on the experimental study of Al2O3-TiO2 hybrid nano-cutting fluid using CNC turning operation. The process focuses on the finishing process by using a finishing insert. Further work using roughing process may be suggested to observe the better performance of this cutting process using nano-cutting fluid towards reducing the wear rate. The use of Al2O3-TiO2 hybrid nano-cutting fluid coupled with MQL in the CNC turning process is considered a new method. Machining soft and delicate materials such as Aluminium should consider using this combination technique since it lowers the cutting temperature and removes the chips, reducing the adhesive wear. The hybrid nano-cutting fluid can replace the conventional cutting fluid and will perform better if combined with the MQL cooling technique; this new method should be considered by major industry players that require a high-precision finished product such as the product that involves aircraft and aerospace applications.
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来源期刊
Archives of materials science and engineering
Archives of materials science and engineering Materials Science-Materials Science (all)
CiteScore
2.90
自引率
0.00%
发文量
15
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