gears are one of the most critical components in power transmission system of an automobile and also many rotating machinery. many studies have been conducted on optimum gear design. the main objective is to design different aluminium metal matrix composite spur gears before and after optimization. aluminium metal matrix material composites are preferred mostly due to their low density. also th...

Cracking is a major concern in welding aluminum alloys. Although weld solidification cracks can be eliminated through addition of filler alloy, the additives modify the alloy or base-metal constituents and may not always be desirable. High-energy beam processes, such as electron-beam welding, that result in minimal heat input reduce crack sensitivity, but their high cost limits their applicatio...

This paper investigated the effect of shot peening on strength and corrosion properties 6082-T651 aluminium alloy. The microstructure, surface roughness, microhardness, residual stresses, behaviour were compared with those untreated Cracks delaminations in layer could only be seen treated specimens at a working pressure 4 bar 8 bar, while no such was observed 1.6 bar. roughness increased more t...

The rolling correction process can eliminate machining distortions of aluminum alloy 7075-T651 structural parts. thermal stability the corrected parts under action temperature loading, especially macroscopic shape stability, is key to ensure safe service mechanical equipment. In this study, different loads were used postprocess after correction. rolled samples was analyzed by characterizing mic...

Fully reversed stress-controlled tension–compression fatigue experiments (R = −1) were conducted to study the cyclic deformation and behavior of 7075-T651 aluminum alloys with without a surface mechanical rolling treatment (SMRT). The strain amplitude, ratcheting effect, asymmetric base metal (BM) SMRT specimens analyzed. showed more remarkable effects asymmetry under high stresses. Fatigue tes...