چکیده مقاله
Ultrasonic welding of aluminum to copper has found widespread applications in the electric vehicle industry and lithium ion batteries In this study, ultrasonic welding of aluminum and copper sheets with a thickness of 0 3 mm was conducted under welding pressures of 3, 4, and 5 bar and welding times of 0 25, 0 50, and 0 75 seconds To evaluate the mechanical properties of the welds, macrostructural examinations, tensile shear testing, and hardness measurements were performed, and the experimental design was carried out using the response surface methodology The results revealed that the material flow induced by plastic deformation occurred from beneath the peaks of the sonotrode and anvil pyramids into the valleys, thereby indicating bonded and unbonded regions at the interface From the regions beneath the peaks, the effective weld thickness was calculated The findings further demonstrated that increasing welding time and pressure significantly reduced the effective weld thickness The influence of welding time on enhancing the bonding percentage and maximum tensile shear strength was greater than that of pressure In contrast, the effect of welding pressure on the bonding percentage was negligible compared to welding time Moreover, both welding time and pressure exhibited a similar influence in reducing the hardness of aluminum near the weld interface Based on the regression relationships obtained between the process parameters and weld properties, the results indicated that in ultrasonic welding of aluminum to copper, the effect of welding time is considerably more pronounced than that of pressure Therefore, the properties of ultrasonic aluminum to copper welds can be effectively controlled through welding time
کلیدواژهها
نویسندگان
Ali Mojaverpour
PhD student, Faculty of Materials Engineering, Sahand University of Technology
Tohid Saeid
PhD, Faculty of Materials Engineering, Sahand University of Technology
Farid Bashirzadeh
PhD student, Faculty of Materials Engineering, Sahand University of Technology
شیوه ارجاع
Mojaverpour, Ali and Saeid, Tohid and Bashirzadeh, Farid,1404,Effect of welding time and pressure in ultrasonic welding of aluminum to copper and process optimization using design of experiments (DOE),8th International Conference on Welding and Non Destructive Testing & 26th National Conference on Welding & Inspection & 15th National Conference on NDT & 4th National Conference on Additive Manufacturing,Tehran
ارائهشده در
مجموعه مقالات هشتمین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب، بیست و ششمین کنفرانس ملی جوش و بازرسی، پانزدهمین کنفرانس ملی آزمایش های غیرمخرب و چهارمین کنفرانس ملی ساخت افزایشی20 بهمن 1404 · تهران