چکیده مقاله
Ultrasonic vibrations are high frequency vibrations Sliding friction occurs between two solid surfaces when they slide on each other By applying ultrasonic vibrations to one of these two objects, the friction force between them could be reduced This property has many applications in forming and machining processes To produce and transmit ultrasonic vibrations to the target area, it is necessary to design an ultrasonic system including the generator, transducer, and concentrator Concentrator horn is an important part of an ultrasonic system that its most important duty is to transmit ultrasonic vibrations and amplify their amplitude at its output In this study, two aluminum concentrators with cylindricalconical cylindrical and cylindrical exponential cylindrical geometries were designed to transmit ultrasonic vibrations to the channel area in the simple shear extrusion process Modal analysis was performed in Abaqus to select the best horn The resonant frequency obtained from Abaqus software was used in three bending, torsional, and longitudinal modes for both horns Since only the longitudinal vibration mode was in the generator resonant frequency range and a more suitablevibration amplitude was reported geometrically, it wasapplied in a simple shear extrusion process Finally, the resonance frequency simulation results of 19 927 kHz for thecylindrical exponential cylindrical horn and the value of 21 381 kHz for the cylindrical conical cylindrical horn were reported By comparison under the same design andsimulation conditions, cylindrical exponential cylindrical horn performed better and provided more ideal adaptation to the generator resonant frequency
کلیدواژهها
نویسندگان
Mostafa Balali
Ph D Student, Mechanical Engineering Department, University of Birjand, Birjand, Iran
Hossein Seyedkashi
Associate Professor, Mechanical Engineering Department, University of Birjand, Birjand, Iran
Ali Hasanabadi
Assistant Professor, Mechanical Engineering Department, University of Birjand, Birjand, Iran
Hamid Gorji
Associate Professor, Mechanical Engineering Department, Babol Noshirvani University of Technology, Babol, Iran
Hamid Baseri
Associate Professor, Mechanical Engineering Department, Babol Noshirvani University of Technology, Babol, Iran
Mohammad Khosravi
Assistant Professor, Mechanical Engineering Department, Birjand University of Technology, Birjand, Iran
شیوه ارجاع
Balali, Mostafa and Seyedkashi, Hossein and Hasanabadi, Ali and Gorji, Hamid and Baseri, Hamid and Khosravi, Mohammad,1400,Horn Design and Simulation for Ultrasonic-Assisted Shear Extrusion Process,18th National Conference and 7th International Conference on Manufacturing Engineering in Iran
ارائهشده در
مجموعه مقالات هجدهمین همایش ملی و هفتمین کنفرانس بین المللی مهندسی ساخت و تولید ایران11 اسفند 1400 · تهران