Results 251 to 260 of about 198,686 (307)

Laser Surface Hardening

2013
AbstractLaser surface hardening is a noncontact process that provides a chemically inert and clean environment as well as flexible integration with operating systems. This article provides a brief discussion on the various conventional surface-modification techniques to enhance the surface and mechanical properties of ferrous and nonferrous alloys. The
Soundarapandian Santhanakrishnan, Narendra B. Dahotre   +1 more
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Surface Hardening

2015
Mechanical components often require surface treatments to meet application demands. This chapter describes several surface hardening treatments for steel and their effect on microstructure, composition, and properties. It discusses flame hardening, induction heating, carburizing, nitriding, carbonitriding, and nitrocarburizing.
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Hardening the surface of austenitic steels by strain hardening

Metal Science and Heat Treatment, 1971
1. The carrying capacity in terms of permissible stress (σ0, 2) of steels Kh18N10T and Kh21N5AG7 under conditions of uniaxial static tension increases 50% down to −253° as the result of surface hardening. 2. For hardened steels Kh18N10T and Kh21N5AG7 σ b n /σn > 1 and σ b n /σ0.2 > 1 with Kt=3.0 in the range of 20 to −253° C. 3.
D. V. Lebedev, B. M. Ovsyannikov
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SURFACE HARDENED NAVAL MARINE GEARS WITH REFERENCE TO ALTERNATIVE MEANS OF SURFACE HARDENING

Naval Engineers Journal, 1984
ABSTRACTIt has become common practice in naval marine gear units of European manufacture to take advantage of the greater load carrying capacity resulting from a surface hardening process. The surface hardening processes open to the gear designer are many and varied, and each has advantages and disadvantages.This paper examines the three principal ...
ROGER BARKER, GEORGE C. MUDD
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Surface hardening of case hardened steel by rolling

Metal Science and Heat Treatment, 1965
1. Rolling of case hardened quenched steel produces an additionally hardened layer as thick as 1 mm. At the same time, the hardness increases by 100 HV units. 2. The effect of rolling depends on the type of steel, the preliminary heat treatment, and the value of the contact stress. 3.
G. N. Epshtein, I. V. Paisov
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Electron Beam Surface Hardening

2013
Abstract Electron beam hardening (EBH), with some special characteristics in comparison to other heat treatment technologies, allows beam deflection frequencies of up to 100 kHz. This article illustrates the principles of different thermal electron beam technologies, including beam-deflection, continuous EB interaction, EB flash, as well
Rolf Zenker, Anja Buchwalder
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Surface hardening of steel ShKh15

Metal Science and Heat Treatment, 1972
Carbonitriding improves the wear resistance of ShKh15 bearings used in precision instruments.
A. D. Assonov, R. N. Braverman, E. A. Ostrovskaya, V. T. Chirikov, S. I. Shchipunova   +4 more
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LASER SURFACE HARDENING OF CRANKSHAFT

SAE Technical Paper Series, 2009
<div class="htmlview paragraph">The present work involves systematic study on identification of process parameters and processing conditions for effective laser surface-hardening of automotive crankshaft and its implementation in the industry, utilizing a diode laser integrated to a 6-axis robot and a turn/tilt table.
S M Shariff, Manish Tak, G Padmanabham, S Shanmugam   +3 more
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Surface hardening by ball burnishing

Tribology International, 1990
Abstract The ball burnishing process is becoming more popular not only as a finishing process but also for improving the service properties of machine parts. Experimental work was carried out on a vertical machining centre to establish the effects of four ball burnishing parameters, depth of penetration, feed, ball material and lubricant, on the ...
N.H. Loh, S.C. Tam, S. Miyazawa
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Surface Hardening of Steel

2008
Abstract This chapter discusses the process characteristics, advantages, disadvantages, and applications of various processes involved in surface hardening of steel. These include pack carburizing, liquid carburizing, gas carburizing, vacuum carburizing, plasma carburizing, gas nitriding, liquid nitriding, carbonitriding, and hardfacing.
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