2924 Tooth Surface Durability of Vacuum Case-Hardened Gears treated with Shot-Peening

2007 ◽  
Vol 2007.4 (0) ◽  
pp. 33-34 ◽  
Author(s):  
Hiroshi MORIKAWA ◽  
Masahiko NAKAE ◽  
Yoshitomo NAKAHARA ◽  
Hisashi ABE
2018 ◽  
Vol 10 (7) ◽  
pp. 168781401879065 ◽  
Author(s):  
Shuai Mo ◽  
Shengping Zhu ◽  
Guoguang Jin ◽  
Jiabei Gong ◽  
Zhanyong Feng ◽  
...  

High-speed heavy-load spiral bevel gears put forward high requirement for flexural strength; shot peening is a technique that greatly improves the bending fatigue strength of gears. During shot peening, a large number of fine pellets bombard the surface of the metal target material at very high speeds and let the target material undergo plastic deformation, at the same time strengthening layer is produced. Spiral bevel gear as the object of being bombarded inevitably brought the tooth surface micro-morphology changes. In this article, we aim to reveal the effect of microtopography of tooth shot peening on gear lubrication in spiral bevel gear, try to establish a reasonable description of the microscopic morphology for tooth surface by shot peening, to reveal the lubrication characteristics of spiral bevel gears after shot peening treatment based on the lubrication theory, and do comparative research on the surface lubrication characteristics of a variety of microstructures.


1996 ◽  
Vol 62 (595) ◽  
pp. 1106-1112 ◽  
Author(s):  
Shigeru HOYASHITA ◽  
Munetoh HASHIMOTO ◽  
Hidetoshi KAMO ◽  
Tomohiro MATSUNOSHITA

2002 ◽  
Vol 2002.40 (0) ◽  
pp. 369-370
Author(s):  
Akira YOSHIDA ◽  
Yuji OHUE ◽  
Masanori SEKI ◽  
Masayasu SATO

2013 ◽  
Vol 79 (804) ◽  
pp. 2952-2959 ◽  
Author(s):  
Kunihiko MORIKAWA ◽  
Kouji KUMAGAI ◽  
Masanori NAGATA ◽  
Izumi UEDA ◽  
Masaharu KOMORI

Author(s):  
Akira YOSHIDA ◽  
Yuji OHUE ◽  
Masanori SEKI ◽  
Hiroshi FUJINAGA

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Shuai Mo ◽  
Ting Zhang ◽  
Guoguang Jin ◽  
Shengping Zhu ◽  
Jiabei Gong ◽  
...  

High speed and heavy load put forward demanding requirements for the bending strength of spiral bevel gear. Shot peening, as a technological method, can greatly improve the bending strength of gear. During shot peening, a large number of subtle projectiles bombard the tooth surface of spiral bevel gear at an extremely high speed, which makes the latter produce plastic deformation and strengthened layer. Serving as the bombarded target, spiral bevel gear inevitably leads to the change of tooth surfaces microstructure. This paper aims at revealing the coupling law between microstructure and lubrication characteristics and establishing a reasonable model that can describe the tooth surface microstructure of shot peened spiral bevel gear. Besides, this paper brings insight into the lubrication characteristics of shot peened spiral bevel gears. Based on the elastohydrodynamic lubrication (EHL) theory, a comparative research on tooth surface lubrication characteristics has been conducted by various microscopic morphologies in this study.


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