Influences of micro-blasting as surface treatment technique on properties and performance of AlTiN coated tools

Jacob, A.; Gangopadhyay, S.; Satapathy, Alok; Mantry, Sisir; Jha, B. B.

doi:10.1016/j.jmapro.2017.08.013

Cited by 24 publications

(5 citation statements)

References 28 publications

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“…These texturing treatments are linked with a slight increase in wear behavior and mechanical properties. Moreover, coating adhesion improves greatly in textured tools [67,68].…”

Section: Monolayered Tialn-based Coatingsmentioning

confidence: 99%

Characteristics and Wear Mechanisms of TiAlN-Based Coatings for Machining Applications: A Comprehensive Review

Sousa

Silva

Pinto

et al. 2021

Metals

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The machining process is still a very relevant process in today’s industry, being used to produce high quality parts for multiple industry sectors. The machining processes are heavily researched, with the focus on the improvement of these processes. One of these process improvements was the creation and implementation of tool coatings in various machining operations. These coatings improved overall process productivity and tool-life, with new coatings being developed for various machining applications. TiAlN coatings are still very present in today’s industry, being used due to its incredible wear behavior at high machining speeds, high mechanical properties, having a high-thermal stability and high corrosion resistance even at high machining temperatures. Novel TiAlN-based coatings doped with Ru, Mo and Ta are currently under investigation, as they show tremendous potential in terms of mechanical properties and wear behavior improvement. With the improvement of deposition technology, recent research seems to focus primarily on the study of nanolayered and nanocomposite TiAlN-based coatings, as the thinner layers improve drastically these coating’s beneficial properties for machining applications. In this review, the recent developments of TiAlN-based coatings are going to be presented, analyzed and their mechanical properties and cutting behavior for the turning and milling processes are compared.

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“…These texturing treatments are linked with a slight increase in wear behavior and mechanical properties. Moreover, coating adhesion improves greatly in textured tools [67,68].…”

Section: Monolayered Tialn-based Coatingsmentioning

confidence: 99%

Characteristics and Wear Mechanisms of TiAlN-Based Coatings for Machining Applications: A Comprehensive Review

Sousa

Silva

Pinto

et al. 2021

Metals

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show abstract

“…However, CVD coatings have certain disadvantages in residual compressive stress and surface morphology [ 2 ]. The most commonly used coating materials in wood industry for cutting tools are based on nitrides and carbides: TiN [ 5 , 6 ], TiAlN [ 7 , 8 , 9 ], AlTiN [ 5 , 10 , 11 ], TiAlSiN [ 12 ] as well as CrAlN [ 5 , 13 , 14 ] and CrN [ 15 , 16 , 17 , 18 ]. Titanium nitride (TiN) exhibit high hardness, good adhesion for substrate, low friction coefficient, high wear resistance, and good oxidation resistance.…”

Section: Introductionmentioning

confidence: 99%

Comparison Study of PVD Coatings: TiN/AlTiN, TiN and TiAlSiN Used in Wood Machining

et al. 2022

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In this paper, we analyze the possibilities of the protection of tools for wood machining with PVD (Physical Vapor Deposition) hard coatings. The nanolayered TiN/AlTiN coating, nanocomposite TiAlSiN coatings, and single layer TiN coating were analyzed in order to use them for protection of tools for wood machining. Both nanostructured coatings were deposited in an industrial magnetron sputtering system on the cutting blades made of sintered carbide WC-Co, while TiN single layer coating was deposited by evaporation using thermionic arc. In the case of TiN/AlTiN nanolayer coatings the thickness of the individual TiN and AlTiN layer was in the 5–10 nm range, depending on the substrate vertical position. The microstructure and chemical composition of coatings were studied by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) method. Additionally, in the case of the TiN/AlTiN coating, which was characterized by the best durability characteristics, the transmission electron microscope (TEM) and X-ray photoelectron spectroscopy (XPS) methods were applied. The coatings adhesion to the substrate was analyzed by scratch test method combined with optical microscopy. Nano-hardness and durability tests were performed with uncoated and coated blades using chipboard. The best results durability characteristics were observed for TiN/AlTiN nanolayered coating. Performance tests of knives protected with TiN and TiAlSiN hard coatings did not show significantly better results compared to uncoated ones.

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“…Based on these studies, the improvement of the mechanical and fatigue properties of different materials after shot peening was revealed [13,14]. Moreover, in the tool industry, micro-blasting has been registered as an efficient method for increasing the life of coated tools [15][16][17]. However, the applied micro-blasting conditions have to be carefully selected since this process can lead to an augmentation of the cutting-edge radius, resulting in reduced cutting tool ability [18,19].…”

Section: Introductionmentioning

confidence: 99%

Increasing the Life Span of Tools Applied in Cheese Cutting Machines via Appropriate Micro-Blasting

et al. 2022

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The potential to increase the life span of tools applied in cheese cutting machines is of great importance, considering their cost and the risk of fragmented metallic parts of the tool being inserted into the cheese. Such tools are commonly manufactured using stainless steel 405 and are subjected to dynamic loads during their operation, leading to fatigue failure. An efficient method to improve the fatigue properties of such tools is the application of micro-blasting. In this work, for the first time, an experimental–analytical methodology was developed for determining optimum micro-blasting conditions and ascertaining a preventive replacement of the tool before its extensive fracture. This methodology is based on the construction of a pneumatic system for the precise cutting of cheese and simultaneous force measurements. Additionally, the entire cheese-cutting process is simulated by appropriate FEA modeling. According to the attained results, micro-blasting on steel tools significantly improves the resistance against dynamic loads, whilst the number of impacts that a tool can withstand until fatigue fracture is more than three times larger. Via the developed methodology, a preventive replacement of the tool can be conducted, avoiding the risk of a sudden tool failure. The proposed methodology can be applied to different tool geometries and materials.

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Influences of micro-blasting as surface treatment technique on properties and performance of AlTiN coated tools

Cited by 24 publications

References 28 publications

Characteristics and Wear Mechanisms of TiAlN-Based Coatings for Machining Applications: A Comprehensive Review

Characteristics and Wear Mechanisms of TiAlN-Based Coatings for Machining Applications: A Comprehensive Review

Comparison Study of PVD Coatings: TiN/AlTiN, TiN and TiAlSiN Used in Wood Machining

Increasing the Life Span of Tools Applied in Cheese Cutting Machines via Appropriate Micro-Blasting

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