Author: Dennis P. TownsendPublisher:
ISBN:
Category : Aircraft carriers
Languages : en
Pages : 10
Book Description
Surface Fatigue Life of Cubic Boron Nitride and Vitreous Ground Carburized and Hardened AISI 9310 Spur Gears
Author: Dennis P. TownsendPublisher:
ISBN:
Category : Aircraft carriers
Languages : en
Pages : 10
Book Description
Effect of Shot Peening on Surface Fatigue Life of Carburized and Hardened AISI 9310 Spur Gears
Author: Dennis P. TownsendPublisher:
ISBN:
Category : Gearing
Languages : en
Pages : 20
Book Description
Surface Fatigue Life of Carburized and Hardened M50Nil and AISI 9310 Spur Gears and Rolling-contact Test Bars
Author: Dennis P. TownsendSurface Fatigue Lives of Case-Carburized Gears With an Improved Surface Finish
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 18
Book Description
Previous research provides qualitative evidence that an improved surface finish can increase the surface fatigue lives of gears. To quantify the influence of surface roughness on life, a set of AISI 9310 steel gears was provided with a near-mirror finish by superfinishing. The effects of the superfinishing on the quality of the gear tooth surfaces were determined using data from metrology, profilometry, and interferometric microscope inspections. The superfinishing reduced the roughness average by about a factor of 5. The superfinished gears were subjected to surface fatigue testing at 1.71-GPa (248-ksi) Hertz contact stress, and the data were compared with the NASA Glenn gear fatigue data base. The lives of gears with superfinished teeth were about four times greater compared with the lives of gears with ground teeth but with otherwise similar quality.
The Surface Fatigue Life of Contour Induction Hardened AISI 1552 Gears
Author: Dennis P. TownsendPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 14
Book Description
Increased Surface Fatigue Lives of Spur Gears by Application of a Coating
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Hard coatings have potential for increasing gear surface fatigue lives. Experiments were conducted using gears both with and without a metal-containing, carbon-based coating. The gears were case-carburized AISI 9310 steel spur gears. Some gears were provided with the coating by magnetron sputtering. Lives were evaluated by accelerated life tests. For uncoated gears, all of fifteen tests resulted in fatigue failure before completing 275 million revolutions. For coated gears, eleven of the fourteen tests were suspended with no fatigue failure after 275 million revolutions. The improved life owing to the coating, approximately a six-fold increase, was a statistically significant result.
Surface Fatigue Life and Failure Characteristics of EX-53, CBS 1000M, and AISI 9310 Gear Materials
Author: Dennis P. TownsendPublisher:
ISBN:
Category : Gearing, Spur
Languages : en
Pages : 20
Book Description
Surface Fatigue Life and Failure Characteristics of EX-53, CBS 1000M, and AISI 9310 Gear Materials
Author: Effect of Lubricant Extreme-pressure Additives on Surface Fatigue Life of AISI 9310 Spur Gears
Author: Herbert W. ScibbePublisher:
ISBN:
Category : Gearing
Languages : en
Pages : 20
Book Description
Effect of Lubricant Extreme-pressure Additives on Surface Fatigue Life of AISI 9310 Spur Gears
Author: Herbert W. ScibbePublisher:
ISBN:
Category : Gearing
Languages : en
Pages : 20
Book Description