Tool material surface alloying by wide-aperture low-energy high-current electron beam treatment before wear-resistant coating

Grigoriev, S. N.; Fedorov, S. Yu.

doi:10.1051/meca/2015085

Cited by 7 publications

(5 citation statements)

References 4 publications

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“…Nevertheless, there exists a potential area of enhancing the properties of hard-alloy tools. One of such promising ways is the modification of working surfaces due to the thermal strengthening and diffusion saturation of alloying elements [5]. The obtained experimental results indicate the possibility of creating wear resistant layer on the surface of hard alloy using electron-beam alloying technology.…”

Section: Introductionmentioning

confidence: 83%

Wear of carbide inserts with complex surface treatment when milling nickel alloy

Fedorov

Swe

Kapitanov

et al. 2017

Mechanics & Industry

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One of the effective ways of strengthening hard alloys is the creating structure layers on their surface with the gradient distribution of physical and mechanical properties between the wear-resistant coating and the base material. The article discusses the influence of the near-surface layer which is modified by low-energy high-current electron-beam alloying and the upper anti-friction layer in a multi-component coating on the wear mechanism of the replaceable multifaceted plates in the dry milling of the difficult to machine nickel alloys.

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Section: Introductionmentioning

confidence: 83%

Wear of carbide inserts with complex surface treatment when milling nickel alloy

Fedorov

Swe

Kapitanov

et al. 2017

Mechanics & Industry

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“…A modified layer is created on the surface using electron beam alloying technology due to the initiation of exothermic chemical reactions between the carbide substrate and the thin film deposited on it. The use of such technology and the application of a wear-resistant coating can significantly increase the tool’s durability, and the effect is most noticeable in intensive cutting modes when the stresses arising in the cutting-edge zone reach values close to the strength limit of a hard alloy [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

The Study of Radius End Mills with TiB2 Coating When Milling a Nickel Alloy

et al. 2023

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Nickel alloy high-speed processing technology using ball-end mills is characterized by high contact temperature and leads to accelerated tool wear. One of the effective ways to increase its reliability and service life is to modify the surface by applying functional antifriction layers in addition to wear-resistant coatings. Diamond-like carbon is often used as the latter. However, at cutting speed, when a cutting-edge temperature exceeding 650 °C is reached, the material of this coating reacts actively with oxygen in the air, and the sharply increasing adhesive component of wear quickly incapacitates the milling tooth, limiting its performance. Applying a coating of titanium diboride as an antifriction layer on top of nanocrystalline composite nitride coatings with good resistance to abrasive wear can be a solution to this problem. Our experiments have shown that such technology makes it possible to obtain a twofold increase in durability compared to a tool with a diamond-like antifriction coating in conditions when the cutting edge of the tool is subjected to cyclic thermal shocks above 800 °C, and the durability period of the radius end mill is about 50 min.

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“…The metal is applied as a coating, e.g., using magnetron spraying. After that, an exothermic chemical reaction is initiated, which is conducted under a thermal explosion by pulse heating the surface of the product [25][26][27]. At that, in the capacity of reagents, a rather wide range of substances, chemically active at high temperatures, may be used [28,29].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive surface treatment of high-speed steel tool

Fedorov

Aleshin

Swe

et al. 2017

Mechanics & Industry

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Abstract. One of the promising directions of hardening of high-speed steel tool is the creation on their surface of the layered structures with the gradient of physic-chemical properties between the wear-resistant coatings to the base material. Among the methods of such surface modification, a special process takes place based on the use of pulsed high-intensity charged particle beams. The high speed of heating and cooling allows structural-phase transformations in the surface layer, which cannot be realized in a stationary mode. The treatment was conducted in a RITM-SP unit, which constitutes a combination of a source of low-energy high-current electron beams "RITM" and two magnetron spraying systems on a single vacuum chamber. The unit enables deposition of films on the surface of the desired product and subsequent liquid-phase mixing of materials of the film and the substrate by an intense pulse electron beam. The article discusses features of the structure of the subsurface layer of high-speed steel M2, modified by surface alloying of a low-energy high-current electron beam, and its effect on the wear resistance of the tool when dry cutting hard to machine Nickel alloy. A significant decrease of intensity of wear of high-speed steel with combined treatment happens due to the displacement of the zone of wear and decrease the radius of rounding of the cutting edge because of changes in conditions of interaction with the material being treated.

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Tool material surface alloying by wide-aperture low-energy high-current electron beam treatment before wear-resistant coating

Cited by 7 publications

References 4 publications

Wear of carbide inserts with complex surface treatment when milling nickel alloy

Wear of carbide inserts with complex surface treatment when milling nickel alloy

The Study of Radius End Mills with TiB2 Coating When Milling a Nickel Alloy

Comprehensive surface treatment of high-speed steel tool

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