Study on Residual Stresses in Milling Aluminium Alloy 7050-T7451

摘要: The machining residual stresses can have significant effects on component life by influencing fatigue strength, creep, and stress-corrosion-cracking resistance. This paper studies the induced in milling of aluminum alloy 7050-T7451. Particular attention is paid to influence cutting parameters, such as speed feed rate. In experiments, at surface workpiece depth were measured using X-ray diffraction technique combination with electro-polishing technique. order correlate thermal mechanical phenomena developed during milling, orthogonal components forces a Kistler 9257A type three-component piezoelectric dynamometer. temperature fields machined obtained infrared imaging system finite element method. At last, formation be explained thermo-mechanical coupling effects.