High-performance coatings for cutting tools

Bobzin, Kirsten

doi:10.1016/j.cirpj.2016.11.004

Cited by 351 publications

(151 citation statements)

References 60 publications

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“…TiB 2 and Ni 3 B intermetallic compounds, have a great potential in the development of coatings for cutting tools [19]; specialty when is necessary high speed of machining with the minimum dimensional variation (tolerances) and associate with their thermal stability, high hardness and wear resistance.…”

Section: Discussionmentioning

confidence: 99%

Synthesis of TiB2-Ni3B Nanocomposite Powders by Mechanical Alloying

Hernández¹,

Escobedo²,

Hernández³

et al. 2018

Novel Nanomaterials - Synthesis and Applications

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Combination of good oxidation resistance, thermal stability, hardness and high strength are great interest properties in engineering and, that are possible to obtain with the Ni-Ti-B ternary system. Mechanical alloying (MA) is an alternative method and cheapest for the synthesis of this kind of metal-ceramic materials with respect to the traditional melt and quench process. The transformation sequence of all the mixtures reported the formation of (ɣ Ni) phase with a nodular morphology and identified the additional presence of the TiB 2 phase (needle morphology), which was more evident with the increase of titanium content (M2 and M3 mixtures) after 24 h of milling. Thermal activation of the milled powders showed the nucleation and growth of the Ni 3 B (O boride) and TiB 2 (Hex) as the main phases after heat treatment, where the TiB 2 phase (thin flakes morphology) was nucleated onto Ni 3 B matrix. Ternary alloy by MA took place under a metastable equilibrium, offering the possibility to form glassy alloys for compositions, which are not accessible by melting or quenching techniques.

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Section: Discussionmentioning

confidence: 99%

Synthesis of TiB2-Ni3B Nanocomposite Powders by Mechanical Alloying

Hernández¹,

Escobedo²,

Hernández³

et al. 2018

Novel Nanomaterials - Synthesis and Applications

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“…Post treatment includes usually thermal coating treatment. The most popular single, hard layers formed on high speed steel are composed of TiC, TiN, Al 2 O 3 , TiAlN [1,9]. Titaniumbased materials are characterized by high wear resistance to abrasion whereas Al 2 O 3 ceramic material exhibits good chemical and thermal stability.…”

Section: Single Ceramic Coatingmentioning

confidence: 99%

The structure and formation of functional hard coatings: a short review

Diciuc

Kazek-Kęsik

2017

MATEC Web Conf.

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Abstract. Turning tools come in different shapes and sizes, geometry, base material and coating, according to their destination. They are widely used both for obtaining parts and for machinability tests. In this paper a short review about high-speed steel (HSS) turning tools and their coatings is presented. Hard coatings formed on the tool material should be functional depending on the tool final application. Requirements for hard coatings and technological problems for layer formation on the real cutting tool are discussed. Techniques and production of hard coatingsIn a statistical study made for the year 2013 [1] the 16.33 billion US-Dollars estimated industry of cutting tools includes 39% milling tools followed by 30% of turning tools, with an annual growth assumed to be 4-5%. The same study shows that in 53% of the cases, the cutting tool substrate is represented by cemented carbide and in 20% of the cases by highspeed steel (HSS).Coatings on cutting tools are widely spread due to the improvement they provide during the cutting process. In the early 2000's made statistic 50% of HSS tools, 85% of carbide tools and 40% of super-hard tools used in industry were coated [2]. Due to the more complex phenomenology which accompanies the intermittent cutting process, in this study only coatings of HSS turning tools will be treated.The use of coatings is expected to yield a better protection of the tool against abrasion and adhesion, diffusion, oxidation and to produce a heat barrier for the intensive heat flowing from the cutting area into the tool material [3], thus increasing productivity and tool's life. However, regarding the heat insulation the opinions are divided, as in the paper [4] it was proven that the coatings of continuous cutting tools are not able to insulate the substrate.Mainly, depending on the method and the coating structure, the same coatings can be applied to both HSS and carbide tools, each substrate having its advantages and disadvantages according to the cutting application. The properties of the tools surface should be improved according their novelty, application and to achieve higher productivity for the manufacturing process. Depending on the turning tools destination various hard coatings can be formed on its surface. The shape of the turning tool is usually not complicated, thus techniques like physical or chemical vapor deposition for layer formation are applied. Hard *

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“…In addition to these studies, there are several other available studies in the literature targeting TiN coatings along with their processing techniques and analyses [29][30][31][32][33][34][35][36]. In addition to TiN coating, different types of hard coatings developed under various employed conditions have also been published extensively [37][38][39][40][41][42][43][44][45][46][47][48]. The basic idea discussed in those studies is related to the properties and characteristic of deposited coatings, which are subjected mainly to the change of process parameters, type of material and processing approach.…”

Section: Introductionmentioning

confidence: 99%