Results 21 to 30 of about 111,808 (361)

SURFACE HARDENING OF STEEL PARTS [PDF]

open access: yesOdes’kyi Politechnichnyi Universytet Pratsi, 2017
Development of new resource-saving and cost-effective technologies of combined hardening of steel parts with a significant reduction of the process duration is an important and urgent task. Aim: The aim of the work is to create a technology for combined toughening of steel parts to provide high operational properties of the steel surface layer by ...
Idan, Alaa Fadhil І   +2 more
openaire   +3 more sources

Influence of Shot Peening on Surface Durability of Case-Hardened Steel Gears

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
In order to investigate the influence of shot peening on the surface durability of case-hardened steel gears, the case-hardened steel gears shot-peened with different shot velocities and shot diameters were fatigue-tested using a power circulating type ...
Masanori SEKI   +5 more
doaj   +1 more source

A Method for Optimizing Chemical Composition of Steels to Reduce Radically Their Alloy Elements and Increase Service Life of Machine Components [PDF]

open access: yes, 2017
A method for optimizing chemical composition of steel is proposed and a correlation is established to reduce cardinally alloy elements in existing steel grades that results in high compressive residual stresses at the surface of intensively quenched ...
Kobasko, N. (Nikolai)
core   +2 more sources

A Comparative Study on Cutting Tool Performance in High-Speed Face-Milling of Hardened Tool Steels [PDF]

open access: yesArchives of Metallurgy and Materials
In this study cutting speeds and tool life constants for seven different cutting tools are investigated while high-speed face milling of four different much used hardened tool steels.1.2379 and 1.2080 cold-work tool steels, 1.2344 hot-work tool steel and
Ali O. Er, E. Aslan
doaj   +1 more source

Hardened Layer and Bending Fatigue Strength of Induction Hardened Thermally Refined Steel Gears

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2009
This paper presents a study on effects of the pre-treatment and the heating time on the hardened layer and the bending fatigue strength of induction hardened gears.
Kouitsu MIYACHIKA   +3 more
doaj   +1 more source

Features of Spot-Matrix Surface Hardening of Low-Carbon Steel Using Pulsed Laser [PDF]

open access: yesEngineering and Technology Journal, 2007
In this work, results of spot hardening in low-carbon steel by using a pulsedNd:YAG laser are presented. These results include determination ofhardening depth, diameter of hardened spot, aspect ratio and heat-affectedzone width with varying laser energy ...
Khawla Khashan
doaj   +1 more source

Hardened Steels and Their Machining [PDF]

open access: yesCrystals, 2021
This article discusses the issue of hardened steel machining. Many components in the engineering industry use hardening as the final heat treatment. These components usually occupy a significant position in a given assembly unit. They guarantee the correct operation of the entire technical equipment in total cooperation with other components.
Karel Osička, Josef Chladil
openaire   +3 more sources

Rapid Steel Tooling Via Solid Freeform Fabrication [PDF]

open access: yes, 1998
With increasing part complexity and requirements for long production runs, tooling has become an expensive process that requires long lead times to manufacture. This lengthens the amount oftime from "art to part".
Atre, Sundar V.   +3 more
core   +1 more source

Complexity Modeling of Steel-Laser-Hardened Surface Microstructures

open access: yesApplied Sciences, 2022
Nowadays, laser hardening is a consolidated process in many industrial sectors. One of the most interesting aspects to be considered when treating the surface-hardening process in steel materials by means of laser devices is undoubtedly the evaluation of
Matej Babič   +3 more
doaj   +1 more source

A synopsis manual about recycling steel slag as a cementitious material

open access: yesJournal of Materials Research and Technology, 2019
Steel slag (SS) is an industrial product of steel making. It can be produced in either an electric arc furnace (EAF), of which steel is produced by melting scrap steel, or a basic oxygen furnace (BOF), of which iron is converted to steel.
Alaa M. Rashad
doaj   +1 more source

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