Papers by Author: Naphatara Intanon

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Authors: Supakanya Khanchaiyaphum, Charnnarong Saikaew, Parinya Srisattayakul, Naphatara Intanon
Abstract: Improving the surface quality of various machine components can extend their lifespans by several orders of magnitude. Thin film coating is one approach that can be used to enhance machine part surface quality. In this work, three different thin film coatings (i.e, CrN, CrC and Cr-C-N) were statistically compared for surface quality improvement of fishing-net weaving machine component, namely an upper hook. All coatings were deposited utilizing DC sputtering technique. The effects of coating types on hardness for both hardchrome and non hardchrome coated upper hooks were systematically investigated using one-way analysis of variance (ANOVA). Scanning electron microscope (SEM) and energy dispersive X-ray (EDX) were used to examine the surface quality of the machine component. This study found that CrN gave very high hardness values of 13.042 GPa for hardchrome coated upper hooks and 12.583 GPa for non-hardchrome coated upper hooks. However, the averages hardness of the hardchrome coated and non-hardchrome coated upper hooks were not significantly different at the 95% confidence level.
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Authors: Parinya Srisattayakul, Charnnarong Saikaew, Anurat Wisitsoraat, Naphatara Intanon
Abstract: Surface quality of an upper hook, an important fishing net-weaving machine component manufactured from stainless steel, was improved by systematically investigating the effects of sputtering coating factors using experimental design. Three factors of MoN coating on upper hooks including DC current, operating pressure, and Ar/N2 ratio were studied and optimized for maximum elastic modulus. It was found that the three coating factors affected the elastic modulus of the MoN coating on upper hooks. In addition, the optimal operating condition for MoN coating that produced a maximum elastic modulus was obtained at DC current of 0.35 A, operating pressure of 0.01 mbar, and Ar/N2 ratio of 1.5.
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Authors: Parinya Srisattayakul, Charnnarong Saikaew, Anurat Wisitsoraat, Naphatara Intanon
Abstract: Wear resistance of an upper hook, an important fishing net-weaving machine component manufactured from stainless steel, was improved by systematically investigating the influence of molybdenum nitride (MoN) sputtering coating using experimental design. Three factors of MoN coating on upper hooks including DC current, operating pressure, and Ar/N2 ratio were studied and optimized for minimum wear of the machine component. After conducting wear testing on the fishing net-weaving machine in a participating company, it was found that the three coating factors influenced the wear of the machine component. In addition, the optimal operating condition for MoN sputtering coating that produced the minimum wear was obtained at DC current of 0.45 A, operating pressure of 0.01 mbar, and Ar/N2 ratio of 0.5.
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