Results 1 to 10 of about 38,153 (263)

Recent development of thermally assisted surface hardening techniques: A review

open access: yesAdvances in Industrial and Manufacturing Engineering, 2021
Thermally assisted surface hardening techniques have led to a surge in research efforts and industrial applications, with emphasis on strengthening of metallic materials with high work hardening, high strength and/or poor deformability.
Jun Liu, Chang Ye, Yalin Dong
doaj   +3 more sources

Hardening Efficiency and Microstructural Changes during Laser Surface Hardening of 50CrMo4 Steel

open access: yesMetals, 2021
Laser surface hardening is an attractive heat treatment solution used to selectively enhance the surface properties of components by phase transformation.
Niroj Maharjan, Naien Wu, Wei Zhou
doaj   +3 more sources

Effective combined surface hardening processes of structural steels using ultrasound [PDF]

open access: yesE3S Web of Conferences, 2023
The effectiveness of hardening of the surface layer of machine parts is evaluated by the operational properties of the surface layer and depends on many conditions that characterize the specific features of the technological process in which this method ...
Chudina Olga   +3 more
doaj   +1 more source

A research on the mechanism and model of surface micro-damage in grinding hardening

open access: yesAdvances in Mechanical Engineering, 2021
Grinding hardening can obtain hardening effect besides fine machining effect on the surface of workpiece. A certain degree of surface micro-damage will be formed during grinding hardening process which mainly contains micro-crack, melting coating ...
Xiaoliang Shi   +2 more
doaj   +1 more source

Analysis and Prediction of Grind-Hardening Surface Roughness Based on Response Surface Methodology-BP Neural Network

open access: yesApplied Sciences, 2022
Surface morphology and surface roughness are very important properties used to assess the quality of grind-hardening surfaces. In this study, grind-hardening tests for 42CrMo steel were designed using the response surface methodology to reveal the ...
Chunyan Wang   +2 more
doaj   +1 more source

New technologies of laser processing

open access: yesАвіаційно-космічна техніка та технологія, 2021
Subject and purpose. Currently, gas, solid-state, and fiber lasers are used to process materials in the aviation industry. For the thermal treatment of steels, gas CO2 lasers with a capacity of more than 1 kW used, which are reliable in operation but ...
Ольга Валентинівна Афанасьєва   +2 more
doaj   +1 more source

Effect of the yield surface evolution on the earing defect prediction

open access: yesRevista de Metalurgia, 2023
Although the prediction of earing in the cup drawing process is considerably related to the yield surface shape, the yield surface evolution is also essential for the final ear form.
Toros A. Akşen, Mehmet Firat
doaj   +1 more source

Laser transformation hardening effect on hardening zone features and surface hardness of tool steel AISI D2

open access: yesMechanics and Advanced Technologies, 2017
The relationship of technological input regimes of the laser transformation hardening on change the hardening depth, hardening width, and hardening angle, as well as surface hardness of the tool steel AISI D2 using multifactor experiment with elements of
D. Lesyk   +5 more
doaj   +1 more source

The cathodic electrolytic plasma hardening of the 20Cr2Ni4A chromium-nickel steel

open access: yesJournal of Materials Research and Technology, 2020
In order to obtain the modified surface structure of the 20Cr2Ni4A steel plasma electrolytic hardening (PEH) method was used. The surface hardening process was conducted in the aqueous electrolyte solution of 20% sodium carbonate and 20% urea. The sample
Bauyrzhan K. Rakhadilov   +5 more
doaj   +1 more source

Effect of electrolyte-plasma surface hardening on structure wheel steel 2

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2020
This paper examines the influence of electrolyte-plasma surface hardening on the structure and microhardness of wheel steel mark 2. In the work electrolyte-plasma surface hardening was carried out in an electrolyte made from an aqueous solution 10 ...
Б.К. Рахадилов   +4 more
doaj   +1 more source

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