Results 41 to 50 of about 19,781 (191)

Ultrasonic Surface Strengthening of Train Axle Material 30CrMoA [PDF]

, 2014
As hardness of the work-surface working in the train axle has a direct relationship to train axle's life-time, a surface strengthening technology is necessary to strengthen the hardness of the work-surface. In this study, ultrasonic surface strengthening
Qinjian, Zhang, Jianguo, Cao, Huiying, Wang   +2 more
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STUDY ON PREDICTION MODEL OF SURFACE HARDNESS IN ULTRASOUND ROLLING EXTRUSION

Jixie qiangdu, 2020
Surface hardness is an important index for evaluating the quality of surface processing. Ultrasonic rolling and extrusion technology plays a very significant role in surface strengthening. Taking 42 CrMo bearing steel as the object,the range analysis was
WANG XiaoQiang, RUAN XiaoLin, CUI FengKui, LIU Fei   +3 more
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Residual Stress in Wheels: Comparison of Neutron Diffraction and Ultrasonic Methods, with Trends in RCF [PDF]

, 2014
The critical damage mechanism on many GB passenger train wheels is Rolling Contact Fatigue (RCF) cracking in the rim. Evidence from field observations suggests that RCF damage occurs much more quickly as the wheelsets near the end of their life.
Bevan, Adam, Kabra, S, Molyneux-Berry, Paul, Zhang, S. Y   +3 more
core  

Surface damage resulting from rolling contact operating in magnetic field [PDF]

, 2007
This paper describes the effects of magnetic field in rolling contact tests of steel by using a two-disc configuration and the investigation of mechanisms involved.
Iida, Y, Sato, K, Stolarski, T A
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Effects of ultrasonic surface rolling process on tribological behavior of 4Cr13 stainless steel [PDF]

, 2022
Abstract Ultrasonic surface rolling (USR) process is a novel surface strengthening technique based on the tool head's high-frequency impact on the workpiece. USR can cause severe plastic deformation on the superficial surface of metal material, and greatly improving the mechanical properties of the material. This paper elucidates the effects of
Xiaoshuang Luo, Shengpeng Zhan, Dan Jia, Jiesong Tu, Yinhua Li, Tian Yang, Haitao Duan   +6 more
openaire   +1 more source

Improved Microstructure of 316LN Stainless Steel Performed by Ultrasonic Surface Rolling

Metals
316LN stainless steel (316LN SS) with a gradient structure was produced by ultrasonic surface rolling processing (USRP). The surface quality of the 316LN SS specimen was improved significantly after the USRP.
Likun Jiang, Xingwang Feng, Huanchun Wu, Guosheng Su, Bin Yang   +4 more
doaj   +1 more source

Experimental characterization of wheel-rail contact patch evolution [PDF]

, 2006
The contact area and pressure distribution in a wheel/rail contact is essential information required in any fatigue or wear calculations to determine design life, re-grinding, and maintenance schedules. As wheel or rail wear or surface damage takes place
Björklund, S., Dwyer-Joyce, R.S., Lewis, R., Marshall, M.B., Olofsson, U.   +4 more
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Manufacturing Component Parts of Mining Equipment With Application of Hardening Technologies [PDF]

, 2004
To ensure highest hardness and wear resistance the authors develop an aggregate technology of manufacturing mining equipment component parts. The aggregate technology of manufacturing faced component parts includes the following operations: plasma-jet ...
Albajar, C., Amapane, N., Arce, P., Autermann, Christian Tobias, Bellato, M., Benettoni, M., Benvenuti, A., Bontenackels, M., Caballero, J., Cavallo, F. R., Cerrada, M., Cirio, R., CMS Collaboration, Colino, N., Conti, E., Dal Corso, F., Dallavalle, G. M., de la Cruz, B., de Trocóniz, J. F., Fernandez, C., Fouz, M. C., Garcia Raboso, A., Garcia-Abia, P., Gasparini, F., Gasparini, U., Giacomelli, P., Gonella, F., Gulmini, M., Hebbeker, Thomas, Hermann, S., Hoepfner, K., Jimenez, I., Josa, I., Lacaprara, S., Marcellini, S., Mariotti, C., Maron, G., Maselli, S., Meneguzzo, A. T., Monaco, V., Montanari, A., Montanari, C., Montecassiano, F., Navarria, F. L., Odorici, F., Passaseo, M., Pegoraro, M., Peroni, C., Perrotta, A., Puerta, J., Reithler, H., Romero, A., Romero, L., Ronchese, P., Rossi, A., Rovelli, T., Sacchi, R., Sowa, M., Staiano, A., Toniolo, N., Torassa, E., Vaniev, V., Vanini, S., Ventura, S., Villanueva, C., Willmott, C., Zotto, P., Zumerle, G.   +67 more
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Evaluation of laser range-finder mapping for agricultural spraying vehicles [PDF]

, 2013
In this paper, we present a new application of laser range-finder sensing to agricultural spraying vehicles. The current generation of spraying vehicles use automatic controllers to maintain the height of the sprayer booms above the crop. However, these
A Nüchter, AM Endalew, F Rovira-Más, F-A Moreno, H Jeon, J Anthonis, J Wei, M Magnusson, P Walklate, S Pedersen, S Thrun   +10 more
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SIMLATION OF 3D RESIDUAL STRESS FIELD OF ULTRASONIC SURFACE ROLLING BY DYNAMIC FINITE ELEMENT ANALYSIS

Jixie qiangdu, 2017
The present paper presents a numerical approach to investigate the surface layer residual stress after ultrasonic surface rolling process（USRP）,which is a severe plastic deformation process involving complex static extrusion and dynamic impact.According ...
ZHAO YunCai, WEN ChunBin
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