Performance Studies of Uncoated, CVD-Coated and PVD-Coated Carbides in Turning and Milling

Venkatesh, V.C.; Ye, C.T.; Quinto, Dennis T.; Hoy, D.E.P.

doi:10.1016/s0007-8506(07)62050-2

Cited by 26 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the coated ceramic (CC1690) presents roughness criteria inferior to that of the uncoated ceramic (CC6090) for f = 0.08 mm/rev (Ra CC1690 = 0.431 µm, Ra CC6090 = 0.728 µm), (Rz CC1690 = 1.89 µm, Rz CC6090 = 3.67 µm). The superiority of the CC1690 ceramic is certainly due to the presence of the coating layer as it reduces the coefficient of friction between the cutting tool and the workpiece leading to an improvement of the surface quality by the cutting forces [41]. Similar results have been made available by Sharif et al [42].…”

Section: D Surface Topographysupporting

confidence: 59%

Comparative study of the performance of coated and uncoated silicon nitride (Si3N4) ceramics when machining EN-GJL-250 cast iron using the RSM method and 2D and 3D roughness functional parameters

Laouissi

Yallese

Belbah

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

This paper presents a comparative study of both the surface roughness (Ra and Rz) and the tangential cutting force (Fz) achieved during the machining of EN-GJL-250 cast iron by uncoated and coated silicon nitride ceramics (Si 3 N 4). Experimental tests were planned according to a L 27 Taguchi design. Both the surfaces of response (RSM) and analysis of variance (ANOVA) methods were applied to determine and classify the cutting parameters affecting the surface roughness and cutting forces and for deriving the mathematical models to be used in the optimization stage when implementing the desirability function. Moreover, in order to localize the surface defects in the machined profiles, 2D and 3D topographic analysis based on the Abbott-Firestone curve was employed. The results obtained show that the surface roughness is largely influenced by both the feed rate and the cutting speed, while the depth of cut is the factor that most influenced the cutting force followed by the feed rate. Furthermore, the coated ceramic tool demonstrates a better surface quality and lower cutting force than those obtained by uncoated ceramic. The 3D topographic analysis indicates the generated surfaces as constituted by numerous interrupted ridges. The wear tests show that the CC1690 ceramics are more efficient than the CC6090 ceramics in terms of cutting force, surface roughness and wear resistance.

show abstract

Section: D Surface Topographysupporting

confidence: 59%

Comparative study of the performance of coated and uncoated silicon nitride (Si3N4) ceramics when machining EN-GJL-250 cast iron using the RSM method and 2D and 3D roughness functional parameters

Laouissi

Yallese

Belbah

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…This can be attributed to the combination effect of the machining conditions and the tools geometry used during milling process. Venkatesh et al [15] examined the three types of inserts (uncoated, CVD coated and PVD coated carbides) in milling and turning process and reported the almost equivalent surface roughness for all of these three types. Fig.…”

Section: Resultsmentioning

confidence: 99%

Effect of High Speed Dry End Milling on Surface Roughness and Cutting Forces of Ti-6Al-4V ELI

Sharif

Safari

Izman

et al. 2014

AMM

View full text Add to dashboard Cite

The surface quality generated when high speed dry end milling (HSDEM) Ti-6Al-4V-ELI titanium alloy with coated and uncoated carbide tools were investigated. Evaluation was conducted using TiAlN+TiN coated and uncoated cemented carbide tools under different high cutting speeds and feed rates conditions. Surface roughness and cutting forces were measured when using new tools. The milled surface quality and corresponding alteration were characterized through electron microscopy. Within the investigated conditions high quality surface finish was obtained on the machined surface. Increasing cutting speed from 200 to 300 m/min during the process improved the surface finished particularly under lower feed rates. In term of generated surface quality, uncoated H25 grade carbide tools out performed coated F40M grade specifically at the higher cutting conditions. The main damages observed after HSDEM on the surface for all machining conditions contain redeposited materials, feed marks, and tool edge marks. Under both tested feed rates the resultant cutting force decreased by increasing the cutting speeds and uncoated carbide tools provide the lower cutting forces compared to coated types.

show abstract

“…[13]. CVD coated cemented carbides have been a huge success since their introduction in the late 1960"s. [31]. Since then, chemical vapour deposition technologies have advanced from single layer to multilayer versions combining TiN, TiCN, TiC and Al 2 O 3 .…”

Section: Types Of Coating Technologymentioning

confidence: 99%

Improving Wear Resistance of Cutting Tool by coating

Narasimha¹,

Tewodros²,

Rejikumar³

2014

IOSRJEN

View full text Add to dashboard Cite

-As we know the cutting tool is an important basic tool required in metal removal operations for producing the components. It not only produces component but also maintains the dimensional accuracies, geometrical tolerances and desired surface finish of the machined part. Machining is important in metal manufacturing process to achieve near-net shape, also for the aesthetic requirements. The latest machining process and using the CNC machine tools the cutting tool play a vital role. The manufacturers of these components expect to improve their productivity, quality of the components and longer life of the cutting tools. The longer life of the cutting tool depends on various factors like machine tools used for the machining operation, cutting conditions, work piece material hardness and tool wear etc. In order to meet all these tasks the cutting tool manufacturers in the process of producing quality tools to withstand for higher cutting forces, thermal resistivity with more wear resistance. Many reputed cutting tool manufacturing organisations globally with their rich experience of research and development, invented different ways of enhancing the life of cutting tool in order to optimize the rate of production and to reduce the cost of production, which is highly accepted by the manufacturing industry. The continuous inventions in developing cutting tool materials and coatings on these materials in improving the wear resistance of the cutting tool is in progress day by day. One of the main pre-requisites for successful industrial production is the use of quality coated cutting tools with defined mechanical and technological properties. Therefore, for the development and introduction of new coated cutting tool (new combination of cutting material and hard coatings), it is necessary to carry out a number of studies with the purpose to optimize the coatings composition and processing procedures, and also to test new tools in working conditions.The requirement from the manufacturing industry is produce faster, better, safety and more ecologically, force us to develop new effective tools and innovative technologies. This provides a technological challenge to the scientists and engineers and increases the importance of knowing several scientific disciplines In this paper the analysis is made for the performance of various coated carbide cutting tools in machining the steel AISI 1018. In this review, the machining performance of coated tungsten based cemented carbides, were investigated during finish turning of AISI 1018 steel under dry conditions.

show abstract

Performance Studies of Uncoated, CVD-Coated and PVD-Coated Carbides in Turning and Milling

Cited by 26 publications

References 7 publications

Comparative study of the performance of coated and uncoated silicon nitride (Si3N4) ceramics when machining EN-GJL-250 cast iron using the RSM method and 2D and 3D roughness functional parameters

Comparative study of the performance of coated and uncoated silicon nitride (Si3N4) ceramics when machining EN-GJL-250 cast iron using the RSM method and 2D and 3D roughness functional parameters

Effect of High Speed Dry End Milling on Surface Roughness and Cutting Forces of Ti-6Al-4V ELI

Improving Wear Resistance of Cutting Tool by coating

Contact Info

Product

Resources

About