An integrative approach to coating/carbide substrate design of CVD and PVD coated cutting tools during the machining of austenitic stainless steel

He, Qianxi; Paiva, José Mario; Kohlscheen, Joern; Beake, Ben D.

doi:10.1016/j.ceramint.2019.10.259

Cited by 62 publications

(29 citation statements)

References 30 publications

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“…However, due to the higher temperature of the CVD process, the hardness of the substrate will also decrease. At the same time, the quenching process will be required after the heat treatment, which will cause large distortion, so it is not suitable for the processing of high-precision parts [9][10][11]. Although chemical vapor deposition is a complex chemical system, it has the following advantages [6]:…”

Section: Application Of Chemical Vapor Deposition In Nano-coatingmentioning

confidence: 99%

Technical Characteristics and Wear-Resistant Mechanism of Nano Coatings: A Review

et al. 2020

Coatings

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Nano-coating has been a hot issue in recent years. It has good volume effect and surface effect, and can effectively improve the mechanical properties, corrosion resistance and wear resistance of the coatings. It is important to improve the wear resistance of the material surface. The successful preparation of nano-coatings directly affects the application of nano-coatings. Firstly, the preparation methods of conventional surface coatings such as chemical vapor deposition and physical vapor deposition, as well as the newly developed surface coating preparation methods such as sol-gel method, laser cladding and thermal spraying are reviewed in detail. The preparation principle, advantages and disadvantages and the application of each preparation method in nano-coating are analyzed and summarized. Secondly, the types of nano-coating materials are summarized and analyzed by inorganic/inorganic nanomaterial coatings and organic/inorganic nanomaterial coatings, and their research progress is summarized. Finally, the wear-resistant mechanism of nano-coatings is revealed from three aspects: grain refinement, phase transformation toughening mechanism and nano-effects. The application prospects of nano-coatings and the development potential combined with 3D technology are prospected.

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Section: Application Of Chemical Vapor Deposition In Nano-coatingmentioning

confidence: 99%

Technical Characteristics and Wear-Resistant Mechanism of Nano Coatings: A Review

et al. 2020

Coatings

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“…Coatings are applied depending on the machining process and based on the process's pre-requisites, since their performance is heavily tied to the coating's properties (chemical composition, architecture, microstructure and mechanical properties). Because of this, coating design is very important [21,38]. To know which coating to apply and where to apply it, studies have been conducted to evaluate cutting tool behavior.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Turning Processes Using Coated Tools—A Comprehensive Review

Sousa

Silva

2020

Metals

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Turning continues to be the largest segment of the machining industry, which highlights the continued demand for turned parts and the overall improvement of the process. The turning process has seen quite an evolution, from basic lathes using solid tools, to complex CNC (Computer Numerical Control) multi-process machines, using, for the most part, coated inserts and coated tools. These coatings have proven to be a significant step in the production of high-quality parts and a higher tool life that have captivated the industry. Continuous improvement to turning coated tools has been made, with many researches focusing on the optimization of turning processes that use coated tools. In the present paper, a presentation of various recently published papers on this subject is going to be made, mentioning the various types of coatings that have recently been used in the turning process, the turning of hard to machine materials, such as titanium alloys and Inconel, as well as the interaction of these coatings with the turned surfaces, the wear patterns that these coatings suffer during the turning of materials and relating these wear mechanisms to the coated tool’s life expectancy. Some lubrication conditions present a more sustainable alternative to current methods used in the turning process; the employment of coated tool inserts under these conditions is a current popular research topic, as there is a focus on opting for more eco-friendly machining options.

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“…As a result, the general entropy production goes down. The micro-scale process that is a direct result of friction caused by the mechanical response of the surface engineered layer due to energy dissipation within the alternating nano-layers of the multilayered coatings [ 7 ] or within a layer of a High Entropy Alloy coating [ 8 ] or as an integrative mechanical response of the coating/carbide tool system [ 9 ]. Such processes develop gradually and also contribute to the reduction in entropy production.…”

Section: Introductionmentioning

confidence: 99%

“…Machining of hard-to-cut materials with intensive built-up edge formation is a very complex tribological phenomenon. Several simultaneous processes take place within the tribo-system during cutting under the outlined conditions [ 9 ]. The cutting tool is a critical part of the tribo-system that enables control over the overall frictional process [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…From a tribological viewpoint, machining of these materials proceeds under conditions of seizure at the tool/chip interface, which by itself, represents a catastrophic wear mode [ 10 ]. When certain hard-to-machine materials such as stainless steels are machined, the essential feature of chip formation is varying shear strength of the work material at the chip/tool interface: a phenomenon that is similar to stick–slip conditions [ 9 ]. The stick–slip phenomenon is related to self-organized critical processes [ 14 , 15 , 16 , 17 , 18 ] which occur during tribological processes in general [ 19 , 20 ] and metal cutting in particular [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

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Effect of the Adaptive Response on the Wear Behavior of PVD and CVD Coated Cutting Tools during Machining with Built Up Edge Formation

et al. 2020

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The relationship between the wear process and the adaptive response of the coated cutting tool to external stimuli is demonstrated in this review paper. The goal of the featured case studies is to achieve control over the behavior of the tool/workpiece tribo-system, using an example of severe tribological conditions present under machining with intensive built-up edge (BUE) formation. The built-ups developed during the machining process are dynamic structures with a dual role. On one hand they exhibit protective functions but, on the other hand, the process of built-up edge formation is similar to an avalanche. Periodical growth and breakage of BUE eventually leads to tooltip failure and catastrophe of the entire tribo-system. The process of BUE formation is governed by the stick–slip phenomenon occurring at the chip/tool interface which is associated with the self-organized critical process (SOC). This process could be potentially brought under control through the engineered adaptive response of the tribo-system, with the goal of reducing the scale and frequency of the occurring avalanches (built-ups). A number of multiscale frictional processes could be used to achieve this task. Such processes are associated with the strongly non-equilibrium process of self-organization during friction (nano-scale tribo-films formation) as well as physical–chemical and mechanical processes that develop on a microscopic scale inside the coating layer and the carbide substrate. Various strategies for achieving control over wear behavior are presented in this paper using specific machining case studies of several hard-to-cut materials such as stainless steels, titanium alloy (TiAl6V4), compacted graphitic iron (CGI), each of which typically undergoes strong built-up edge formation. Various categories of hard coatings deposited by different physical vapor deposition (PVD) and chemical vapor deposition (CVD) methods are applied on cutting tools and the results of their tribological and wear performance studies are presented. Future research trends are outlined as well.

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An integrative approach to coating/carbide substrate design of CVD and PVD coated cutting tools during the machining of austenitic stainless steel

Cited by 62 publications

References 30 publications

Technical Characteristics and Wear-Resistant Mechanism of Nano Coatings: A Review

Technical Characteristics and Wear-Resistant Mechanism of Nano Coatings: A Review

Recent Advances in Turning Processes Using Coated Tools—A Comprehensive Review

Effect of the Adaptive Response on the Wear Behavior of PVD and CVD Coated Cutting Tools during Machining with Built Up Edge Formation

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