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CSME 2021/04
Volume 42 No.2
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151-161
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Cutting Performance Improvement Through a Hybrid Assisted Machining Technique on Quartz Glass Milling
Shen-Yung Lina and Jia-Ze Chena
aDepartment of Mechanical and Computer-Aided Engineering, National Formosa University, Yunlin, Taiwan, ROC.
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Abstract:
The four stage experiments including without assistance, laser-assisted, biaxial ultrasonically assisted and hybrid assisted machining systems on quartz glass milling were constructed in this study in order to verify the assisted effects on cutting performance among them. The milling experiment without assistance was firstly performed to investigate the variations of cutting performance and the results were used for the suitable process parameter planning in the subsequent stage experiments. Next, laser assisted system, biaxial ultrasonically assisted system, and combination of laser assisted system and biaxial ultrasonically assisted system with two-axis simultaneous oscillations (x and y directions) were subsequently introduced at the second to the fourth stage experiments, respectively. At each stage experiment, the effects of process parameters on the variations of surface roughness, side surface morphology and cutting-tool wear are thus investigated. Also, a hybrid assisted machining system may be established through the integration of this biaxial ultrasonically assisted system and laser assisted system. Under these assistances, milling experiments of quartz glass by a cutting-tool of extra-fine particle tungsten carbide with nACo® coating were conducted. And the full factorial experiments of process parameter combinations such as feed rate, cutting velocity and radial depth of cut were also planned.
The results show that the milling experiments through the combination of laser assisted system and ultrasonically assisted system with two-axis simultaneous oscillations have the better results than those experiments without assistance, with laser assisted and biaxial ultrasonically assisted systems only. Because the use of this hybrid assisted machining system, the cutting performance of tool wear and surface roughness are improved significantly.
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Keywords: Quartz glass, biaxial ultrasonically assisted, laser-assisted, hybrid assisted, cutting performance
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©
2021
CSME , ISSN 0257-9731
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