Deterministic Analytical Model of Resistance to Deep Contact Fatigue of a Stressed Material
Механика машин, механизмов и материалов, 2021 The stress state of the surface layer in the contact zone of the mating teeth of cylindrical gears is considered. It is shown that under contact loading, the stress state of the surface layer is inhomogeneous and changes with the distance from the ...
Sergei P. Rudenko, Sergei G. Sandomirski
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Grinding the side surfaces of the spiroid cylindrical gear worm turns with a tapered wheel [PDF]
E3S Web of Conferences, 2023 Information about the worms’ production technology of spiroid cylindrical gears is given. A method of the profile analytical calculation of a disk abrasive tool is proposed, providing the possibility to profile grinding wheels for various types of ruled ...
Tkachuk Alexander, Ignatyugin Valery
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Influence of Shot Peening on Surface Durability of Case-Hardened Steel Gears
Journal 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
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EFFECTS OF CARBURIZING AND NITRIDING PROCESSES ON THE COST AND QUALITY OF GEARS PRODUCED WITH AISI 4140 AND 8620 STEELS [PDF]
Tecnologia em Metalurgia, Materiais e Mineração, 2012 This study compares the effects of nitriding and carburizing processes applied to gears subjected to contact stresses below 1300 MPa. The manufacturing cost, as well the depth of hardened layer and the distortion produced by two processes are analyzed.
Claudio José Leitão +2 more
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Extended Wear Lifetime Calculation for Grease Lubricated Gears in Consideration of Surface Hardness and Roughness [PDF]
MATEC Web of Conferences, 2022 Greases have a variety of advantages when special operating conditions apply for gear lubrication, e. g. improved properties against continuous (or slow speed) wear.
Siewerin Benedikt J. +2 more
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MODERN METHODS OF GEAR MILLING OF HARDENED LARGE-MODULE GEARS
Scientific Journal of Polonia University, 2021 The latest developments of modern methods of high-speed gear milling of large-module cylindrical gears, both for preliminary grinding of teeth and for final blade processing of gears, are considered. For high-speed blade gear processing, promising designs of worm carbide cutters have been developed, manufactured and implemented.
Kateryna Kamchatna-Stepanova +1 more
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Tribological evaluation of sulfurnitrided gears without liquid lubricant
Nihon Kikai Gakkai ronbunshu, 2021 Sulfurnitriding, one of various surface treatments for mechanical components made of steels realizes solid lubrication for decreasing friction force of each contact point and keeping lubricating condition on the surface.
Kazuya HORIE +2 more
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Observations of acoustic emission activity during gear defect diagnosis. [PDF]
, 2003 It is widely recognised that acoustic emission (AE) is gaining ground as a non- destructive technique (NDT) for health diagnosis on rotating machinery.
Mba, David, Toutountzakis, Tim
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Designs, 2023 The gear manufacturing method is an important determinant of their performance and service life. Surface hardness and dimensional accuracy play a significant influence in determining wear and contact fatigue in gears. This study’s goal was to measure the
Natalino Fonseca Da Silva Guterres +2 more
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A Method for Optimizing Chemical Composition of Steels to Reduce Radically Their Alloy Elements and Increase Service Life of Machine Components [PDF]
, 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)
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