Wear resistance and cutting performance of high-speed steel ball nose end mills related to the initial state of tool surface

Чаус, А. С.; Sitkevich, M. V.; Pokorný, Peter; Sahul, Martin; Haršáni, Marián; Babincová, Paulína

doi:10.1016/j.wear.2021.203711

Cited by 13 publications

(7 citation statements)

References 27 publications

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“…Given this, under the conditions when the laser power density was lower (due to the larger laser beam spot diameter), the highest laser scan speed could support the formation of the supersaturated solid solution to the detriment of eutectics. The formation of the boron eutectic in the surface layer is, in any case, the most important from a wear resistance point of view [51,52]. Nevertheless, as can be seen in Figure 8, primary dendrites are surrounded by a significant number of eutectics (see Table 2), which, in this case, were primarily formed by the very fine cell and rod-like structures.…”

Section: Microstructure Characterization Of the Samples That Were All...mentioning

confidence: 90%

Section: Microstructure Characterization Of the Samples That Were All...mentioning

confidence: 99%

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The Effect of Varying Parameters of Laser Surface Alloying Post-Treatment on the Microstructure and Hardness of Additively Manufactured 17-4PH Stainless Steel

Chaus,

Devoino,

Sahul

et al. 2024

Crystals

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In the present work, the evolution of the microstructure in additively manufactured 17-4PH stainless steel, which was subjected to laser surface alloying with amorphous boron and nitrogen at the varying process parameters, was studied. The main aim was to improve surface hardness and hence potential wear resistance of the steel. Scanning electron microscopy, wavelength-dispersive X-ray spectroscopy (WDS), and Auger electron spectroscopy (AES) were used. It was shown that the final microstructure developed in the laser-melted zone (LMZ) is dependent on a variety of processing parameters (1 and 1.5 mm laser beam spot diameters; 200, 400, and 600 mm/min laser scan speeds), which primarily influence the morphology and orientation of the eutectic dendrites in the LMZ. It was metallographically proven that a fully eutectic microstructure, except for one sample containing 60 ± 4.2% of the eutectic, was revealed in the LMZ in the studied samples. The results of WDS and AES also confirmed alloying the LMZ with nitrogen. The formation of the boron eutectic and the supersaturation of the α-iron solid solution with boron and nitrogen (as a part of the eutectic mixture) led to enhanced microhardness, which was significantly higher compared with that of the heat-treated substrate (545.8 ± 12.59–804.7 ± 19.4 vs. 276.8 ± 10.1–312.7 ± 11.7 HV0.1).

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Section: Microstructure Characterization Of the Samples That Were All...mentioning

confidence: 90%

Section: Microstructure Characterization Of the Samples That Were All...mentioning

confidence: 99%

The Effect of Varying Parameters of Laser Surface Alloying Post-Treatment on the Microstructure and Hardness of Additively Manufactured 17-4PH Stainless Steel

Chaus,

Devoino,

Sahul

et al. 2024

Crystals

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“…According to tapping process simulation by a research group in an earlier stage, the tapping highest temperatures could be 773K. The test parameters are selected according to the working conditions of high-speed steel tap tapping [22]. A ball-on-disc high-temperature (T = 773 K) wear test unit (HT-1000, Lanzhou Zhongke Kaihua technology development Co. Ltd, Lanzhou, China) with Si3N4 balls (dia: 5mm, 78HRC) was used for the wear tests under a load of 19.8N, a linear velocity of 120 m/min., and a turning radius of 7.5 mm.…”

Section: Wear Testmentioning

confidence: 99%

Effect of cryogenic and electrolytic passivation treatment on wear resistance of M2 high-speed steel

Chen

Zhang

Yan

et al. 2023

Int J Adv Manuf Technol

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Through cryogenic treatment and electrolytic passivation treatment of M2 high-speed steel(HSS), the effect of electrolytic passivation process parameters on the life of M2 HSS taps and the combined effect of cryogenic treatment and electrolytic passivation treatment on the wear resistance of the M2 HSS were investigated by using a scanning electron microscope (SEM) and energy dispersive spectrometer (EDS).The results show that the life of M2 HSS tap after electrolytic passivation treatment increases most signi cantly under the theoretical edge radius, the functional relationship between the charge consumption (y) and the tap edge radius (x) is as follows: y = 8.135x-48.842. The wear resistance of the sample after cryogenic and electrolytic passivation treatment is the highest, which is 1.52 times higher than those of the traditional heat treatment sample. This is due to the increase of the number of carbides on the surface of the specimens after cryogenic treatment, the distribution and size of carbides are relatively uniform, the average size of carbides is reduced by 60.4%. There is a carbon layer on the surface of the sample after passivation, which can effectively improve the wear condition. The size and number of carbides in the surface layer of the sample remain unchanged after passivation treatment, indicating that cryogenic treatment plays a key role in the performance of the material.

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“…Consequently, HSS is widely utilized in the production of various machining tools with large dimensions, fast cutting speeds, heavy loads, and high operating temperatures, such as turning tools, file tools, milling tools, planning tools, broaches, and drills, among others. Additionally, it can be utilized to produce cold and hot dies that require high wear resistance [ 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Status and Perspective of High-Energy Beam Surface Strengthening: High-Speed Steel

Dong

Guo

et al. 2022

Materials

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High-speed steel (HSS) is primarily used to manufacture cutting tools and roll materials for various machine tools. Improving the hardness, wear resistance, and corrosion resistance of HSS is of great significance to the development of the manufacturing and tool industries. The high-energy beams, consisting of laser, plasma beam, and electron beam processing (e.g., surface remelting, cladding, and alloying), have the advantageous characteristics of high heat source energy and good surface processing effect. The research status and perspective of the above three processing techniques on the surface properties (in particular, hardness, wear resistance, and corrosion resistance) of HSS is reviewed, and the principles, advantages, and disadvantages of the three strengthening methods are discussed. High-energy beam surface alloying appears to be the most cost-effective of HSS surface strengthening methods and is promising to receive increasing research attentions in the future.

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Wear resistance and cutting performance of high-speed steel ball nose end mills related to the initial state of tool surface

Cited by 13 publications

References 27 publications

The Effect of Varying Parameters of Laser Surface Alloying Post-Treatment on the Microstructure and Hardness of Additively Manufactured 17-4PH Stainless Steel

The Effect of Varying Parameters of Laser Surface Alloying Post-Treatment on the Microstructure and Hardness of Additively Manufactured 17-4PH Stainless Steel

Effect of cryogenic and electrolytic passivation treatment on wear resistance of M2 high-speed steel

Status and Perspective of High-Energy Beam Surface Strengthening: High-Speed Steel

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