Comparative study of PVD and CVD cutting tools performance in milling of duplex stainless steel

Martinho, R. P.; Silva, Francisco; Martins, Carlos Otávio Damas; Lopes, H.

doi:10.1007/s00170-019-03351-8

Cited by 55 publications

(32 citation statements)

References 32 publications

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“…A thicker coating may not be ideal for finishing operations; however, for roughing operations, having a thicker coating may be beneficial. This conclusion was also drawn in other works [31,32].…”

Section: Coatings For Milling Toolssupporting

confidence: 87%

“…The results report that the surface finish quality was better for the coated carbide end mill. Martinho et al [31] compared the behavior of identical carbide insert coated tools but provided with different coatings in the X2CrNiMoCu25-6-3-3 duplex stainless-steel facing. The coatings used were PVD (monolayer) AlTiN and CVD (multilayer) TiN/TiCN/Al 2 O 3 .…”

Section: Coatings For Milling Toolsmentioning

confidence: 99%

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Recent Advances on Coated Milling Tool Technology—A Comprehensive Review

Sousa

Silva

2020

Coatings

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The milling process is one of the most used processes in the manufacturing industry. Milling, as a process, as evolved, with new machines and methods being employed, in order to obtain the best results consistently. Milling tools have also seen quite an evolution, from the uncoated high-speed steel tool, to the now vastly used, coated tools. Information on the use of these coated tools in recent scientific researches was collected. The coatings that are currently being researched are going to be presented, highlighting some novel advances in the nanocomposite and diamond coatings area, as these coatings are seeing a growing use in the industry, with very satisfactory results, with performance and tool-life increase. Wear mechanism of various types of coatings are also a popular topic on recent research, as the cutting behavior of these coated tools provides valuable information on the tool’s-life. Furthermore, analysis of these mechanisms enables for the selection of the best coating type for the correct application. Recently, the employment of coated tools paired with sustainable lubrication methods as seen some use. As this presents the opportunity to enhance the coated tool’s and the process’s performance, obtaining better results, in terms of better tool-life and better surface finish quality, in a more sustainable fashion.

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Section: Coatings For Milling Toolssupporting

confidence: 87%

Section: Coatings For Milling Toolsmentioning

confidence: 99%

Recent Advances on Coated Milling Tool Technology—A Comprehensive Review

Sousa

Silva

2020

Coatings

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“…According to Figure 15b, it was identified that these fragments are parts of the inserts coating, indicating coating removal or detachment. This phenomenon has already been reported in similar works [43]. As represented in Figure 15a, small fragments retained in the chips have also been detected.…”

Section: Chip Analysissupporting

confidence: 87%

Machining GX2CrNiMoN26-7-4 DSS Alloy: Wear Analysis of TiAlN and TiCN/Al2O3/TiN Coated Carbide Tools Behavior in Rough End Milling Operations

et al. 2019

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In the last decade, it has been common to observe a competition between coatings achieved via physical vapor deposition (PVD) and chemical vapor deposition (CVD) techniques on cutting tools used in machining processes. The tool’s substrate material can immediately condition the coating process selection. However, there are also materials capabe of adapting to any of the coating processes. Hence, the capabilities demonstrated by a given coating when created with one technique or another are usually different due to the intrinsic characteristics of each coating process, such as temperature and stress levels. In this work, to study the machining behavior of a super duplex stainless steel, PVD- and CVD-coated tungsten carbide inserts with different coatings were used in order to identify the wear mechanisms that affect each of the coatings and the workpiece’s surface quality, evaluated through different roughness parameters. The vibration level produced throughout the various tests was also registered in an attempt to associate the type of coating or insert failure with the level of vibrations generated in the CNC (Computer Numeric Control) machining spindle. This allowed us to conclude that the tools coated with TiAlN via PVD showed better wear behavior, as well as creating workpiece surfaces with less roughness. Thus, it was clear that this coating presents strong advantages in the machining of the super duplex stainless steel chosen for this work, being an innovative work due to the combination of materials used and the approach in terms of vibration analysis applied to milling.

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“…To understand the capabilities of the developed coatings, they must be properly characterized, as can be seen in studies carried out by several authors. It is important to determine some properties of coatings such as the thickness of the coating, usually assessed by SEM (Scanning Electron Microscopy) [9,[24][25][26][27][28][29][30] to determine the surface roughness of the obtained coatings, which can be done using the atomic force microscopy (AFM) method [9,10], or measure/qualify the level of adhesion between the coating and the substrate, which can be carried out using scratch tests, classifying the adhesion according to the BS EN 1071-3: 2005 standard [31], to evaluate the transmittance, which can be obtained using spectrophotometry, or to test the resistance to climate change following the PV1200 standard [32].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Thin Chromium Coatings Produced by PVD Sputtering for Optical Applications

et al. 2021

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PVD (physical vapor deposition) and CVD (chemical vapor deposition) have gained greater significance in the last two decades with the mandatory shift from electrodeposition processes to clean deposition processes due to environmental, public safety, and health concerns. Due to the frequent use of coatings in several industrial sectors, the importance of studying the chromium coating processes through PVD–sputtering can be realized, investing in a real alternative to electroplated hexavalent chromium, usually denominated by chromium 6, regularly applied in electrodeposition processes of optical products in the automotive industry. At an early stage, experimental tests were carried out to understand which parameters are most suitable for obtaining chromium coatings with optical properties. To study the coating in a broad way, thickness and roughness analysis of the coatings obtained using SEM and AFM, adhesion analyzes with the scratch-test and transmittance by spectrophotometry were carried out. It was possible to determine that the roughness and transmittance decreased with the increase in the number of layers, the thickness of the coating increased linearly, and the adhesion and resistance to climatic tests remained positive throughout the study. Thus, this study allows for the understanding that thin multilayered Cr coatings can be applied successfully to polymeric substrates regarding optical applications in the automotive industry.

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Comparative study of PVD and CVD cutting tools performance in milling of duplex stainless steel

Cited by 55 publications

References 32 publications

Recent Advances on Coated Milling Tool Technology—A Comprehensive Review

Recent Advances on Coated Milling Tool Technology—A Comprehensive Review

Machining GX2CrNiMoN26-7-4 DSS Alloy: Wear Analysis of TiAlN and TiCN/Al2O3/TiN Coated Carbide Tools Behavior in Rough End Milling Operations

Characterization of Thin Chromium Coatings Produced by PVD Sputtering for Optical Applications

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