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treatment and then carburizing and hardening to the hardness of HRC60-62. This work included the test results of the contact fatigue strength carried out on the circulating power system. The Wohler... of the retained austenite, compressive residual stress value, but also the results of contact fatigue strength tests, are more favorable for the teeth shaving method than for the teeth grinding method. Key......
Air flow patterns and noise analysis inside high speed angular contact ball bearingsZHAI Qiang(翟强), YAN Ke(闫柯), ZHANG You-yun(张优云), ZHU Yong-sheng(朱永生), WANG Ya-tai(王亚泰) (Key Laboratory for Modern... the ball-raceway contact zone are the principle factors that barricades the lubricant entering the bearing cavity, and further causes improper lubrication. The investigation of the air phase flow......
: reactive wetting; solid-liquid interfacial energy; contact angle; graphite; interface reaction 1 Introduction A great interest has been triggered that the wetting of liquid metal on metallic or ceramic... by DEZULLUS et al [4], and the diffusion-limited model by MORTENSEN et al [5]. Coincidently, most dynamics models of them show only relationship between contact angle (θ) or spread radius (R) and time from......
parts according to its deformation and contact with the punch and the elastic foundation, especially an elastic-plastic part was considered in the deflection of the thin strip. Analytical solutions were... thin strip were obtained. The results of the two models were compared. The study shows that the method is effective. Key words: elastic-plastic solution; beam bending; thin strip stamping; contact......
Trans. Nonferrous Met. Soc. China 26(2016) 3161-3169 Effect of carburization on microstructure and rolling contact fatigue property of 95W-3.4Ni-1.6Fe heavy alloy Guang-hong WANG, Sheng-guan QU, Rui... XRD. Effect of carburization on the rolling contact fatigue (RCF) property of the alloy was studied. The results showed that the carburized layer was composed of the outer, porous WC layer......
provide time-varying mesh parameters such as contact points, backlash angle and unloaded transmission error. In this study, it is first applied as a preprocessor for the load distribution analysis... of action: (18) Once the instantaneous contact points are determined at a given input crankshaft angle fin by the unloaded TCA, the unknowns ρc, li and fbli can be calculated. Then, an iterative......
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were analyzed and summarized using statistical analyses. The results demonstrate that the main types of contact among the particles are face-face, face-angle, face-edge, edge-edge, edge-angle and angle... structures. Figures 7(a2), (A2), (b2) and (B2) show that the main contact types among the particles were face-face, face-angle, face-edge, edge-edge, edge-angle and angle-angle contacts. In addition......
, and the orientation angle of the contact path is the smallest for reason of less mismatch at the top and root edges of tooth surfaces. 2) The shape and position of the contact bearings of Case 2 and Case 3... profile on meshing and contact of spiral bevel and hypoid gears were investigated analytically. Firstly, a mathematical model of spiral bevel and hypoid gears with circular blade profile was established......
. The interface friction angle and adhesion between the contact surfaces were modeled by assigning a suitable value for the strength reduction factor at the interface compared with the corresponding soil strengths... footings adjacent slopes, 2) suggest an optimum number of reinforcement and 3) survey the effect of friction angle in clayey soils reinforced by geogrids. The investigations were carried out......