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Book ChapterDOI

Surface Integrity of Ti-6Al-4V Precision Machining Using Coated Carbide Tools Under Dry Cutting Condition

01 Jan 2012-pp 317-324
TL;DR: In this paper, the surface integrity of Ti-6 %Al-4 %V precision machining under dry cutting condition was investigated and the results showed that the surface roughness values recorded were more affected by feed rate and nose radius geometry.
Abstract: Aerospace components from titanium alloys require the greatest reliability and satisfied surface integrity requirement. However, during machining of titanium alloys, the machined surface can be easily damaged because of the difficult-to-machine material and poor machinability. The aims are to investigate the surface integrity of Ti-6 %Al-4 %V precision machining under dry cutting condition. The results showed that the surface roughness values recorded were more affected by feed rate and nose radius geometry. Surface roughness was high value at the first machining followed by decreasing. Work hardening beneath the machined surface caused higher hardness than based material; on the other hand, Changing orientation of microstructure and 2 μm of white layer on the machined surface was found when turning at cutting speed of 30 m/min, feed rate of 0.02 mm/rev, and depth of cut of 0.01 mm.
Citations
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Proceedings ArticleDOI
01 Feb 2018
TL;DR: In this article, the effect of spindle speed, depth of cut and the milling conditions on the surface roughness of milled Ti6Al4V was investigated in dry and flood condition.
Abstract: This study investigated the effect of spindle speed, depth of cut and the milling conditions on the surface roughness of milled Ti6Al4V. Milling was conducted in dry and flood condition while varying spindle speed from 120 to 180 rev/min, depth of cut ranging from 1 to 2 mm as the feed rate was kept constant at 4.6 mm/min. The surface temperature was also measured during milling operation. It was found that during dry milling the surface roughness increased with increment of spindle speed where a maximum surface roughness value of 0.35 μm was recorded at 180 rev/min. During flood milling dry milling, the surface roughness increased with the increase of spindle speed, reaching a maximum of 0.25 μm at 180 rev/min. The depth of cut also had the same impact as spindle speed as it was found that during both dry and flood milling, the surface roughness increased with increment of depth of cut. Flood milling generated smoother milled surface as opposed to dry milling.

2 citations


Cites background or result from "Surface Integrity of Ti-6Al-4V Prec..."

  • ...[10] R. Vinayagamoorthy and M. A. Xavior, "Surface Integrity of Ti-6Al4V Precision machining using coated carbide tools under dry cutting condition," Emerging Trends in Science, Vellore, (2012)....

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  • ...These findings are in agreement with findings established by [10] and [11]....

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  • ...The obtained results are in agreement with a study conducted by Sun and Gou [5] and are contradicting general statement that the surface roughness decrease with increase of cutting speed [10]....

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  • ...Moreover, Vinayagamoorthy and Xavior [10] conducted a study which focused on the investigation of surface integrity of Ti-6Al4V during precision machining using coated carbide tools under dry cutting condition....

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References
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Book
01 Mar 1989
TL;DR: The Manufacturing Engineering & Technology, 6/e, the authors provides a mostly qualitative description of the science, technology, and practice of manufacturing, including detailed descriptions of manufacturing processes and the manufacturing enterprise.
Abstract: For courses in manufacturing processes at two- or four-year schools. An up-to-date text that provides a solid background in manufacturing processes. Manufacturing Engineering & Technology, 6/e, presents a mostly qualitative description of the science, technology, and practice of manufacturing. This includes detailed descriptions of manufacturing processes and the manufacturing enterprise that will help introduce students to important concepts. With a total of 120 examples and case studies, up-to-date and comprehensive coverage of all topics, and superior two-color graphics, this text provides a solid background for manufacturing students and serves as a valuable reference text for professionals. The Sixth Edition has been completely updated, and addresses issues essential to modern manufacturing, ranging from traditional topics such as casting, forming, machining, and joining, to advanced topics such as the fabrication of microelectronic devices and microelectromechanical systems (MEMS), and nanomaterials and nanomanufacturing.

1,947 citations


"Surface Integrity of Ti-6Al-4V Prec..." refers background in this paper

  • ...At least 3 mm of material at the top surface of workpiece was removed in order to eliminate any surface defects and residual stress that can adversely affect the machining result [6]....

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Journal ArticleDOI
TL;DR: In this paper, the authors proposed a method for machining aeroengine alloys with improved hardness, such as cubic boron nitride (CBN) tools, for high speed continuous machining.

970 citations


"Surface Integrity of Ti-6Al-4V Prec..." refers background in this paper

  • ...Machined components for aerospace application are subjected to rigorous surface analysis to detect surface damage that will be detrimental to the highly expensive machined components [4]....

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  • ...Cemented carbide tools selected, which are coated by TiN and TiCN layer(s) can reduce the wear on cutting tool, mainly on flank wear and crater wear [4]....

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Journal ArticleDOI
TL;DR: In this article, surface integrity of rough machining of titanium alloy with uncoated carbide cutting tools was investigated under dry cutting conditions, and the results showed that the machined surface experienced microstructure alteration and increment in microhardness on the top white layer (≤10μm).

446 citations

Journal ArticleDOI
TL;DR: In this article, a neural network modeling approach is presented for the prediction of surface roughness (Ra) in CNC face milling using the Taguchi design of experiments (DoE) method.
Abstract: In this paper, a neural network modeling approach is presented for the prediction of surface roughness (Ra) in CNC face milling The data used for the training and checking of the networks’ performance derived from experiments conducted on a CNC milling machine according to the principles of Taguchi design of experiments (DoE) method The factors considered in the experiment were the depth of cut, the feed rate per tooth, the cutting speed, the engagement and wear of the cutting tool, the use of cutting fluid and the three components of the cutting force Using feedforward artificial neural networks (ANNs) trained with the Levenberg–Marquardt algorithm, the most influential of the factors were determined, again using DoE principles, and a 5×3×1 ANN based on them was able to predict the surface roughness with a mean squared error equal to 186% and to be consistent throughout the entire range of values

437 citations

Journal ArticleDOI
TL;DR: In this article, uncoated cemented carbide tools were used for the turning of Ti-6Al-2Sn-4Zr-6Mo, and the experiments were carried out under dry cutting condition.

286 citations