CV Personal Website


Seyed Mohammad Hossein Seyedkashi

Seyed Mohammad Hossein Seyedkashi

Professor

عضو هیئت علمی تمام وقت

Faculty: Engineering

Department: Mechanical Engineering

Degree: Ph.D

CV Personal Website
Seyed Mohammad Hossein Seyedkashi

Professor Seyed Mohammad Hossein Seyedkashi

عضو هیئت علمی تمام وقت
Faculty: Engineering - Department: Mechanical Engineering Degree: Ph.D |

Seyed Mohammad Hossein Seyedkashi received the Bachelor of Science degree in Manufacturing Engineering from Tabriz University, Tabriz, Iran, in 2003, the Master of Science degree from Tarbiat Modares University, Tehran, Iran, in 2005, and the Ph.D. degree in Manufacturing Engineering from Tarbiat Modares University in 2012He is currently a Professor in the Mechanical Engineering Department, Faculty of Engineering, at the University of Birjand, Birjand, Iran. His research interests include metal forming (hydroforming, laser forming, roll forming), additive manufacturing, friction welding, and optimization.

 

 

My affiliation

Mechanical Engineering Department, Faculty of Engineering, University of Birjand, Birjand, Iran.

 

نمایش بیشتر

Horn Design and Simulation for Ultrasonic-Assisted Shear Extrusion Process

AuthorsSeyed Mohammad Hossein Seyedkashi,Ali Hasanabadi,Hamid Gorji,Hamid Baseri,Mohammad Khosravi
Conference Titleهجدهمین همایش ملی و هفتمین کنفرانس بین ­المللی مهندسی ساخت و تولید ایران
Holding Date of Conference2022-03-02
Event Placeتهران
Page number0-0
PresentationSPEECH
Conference LevelInternal Conferences

Abstract

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 cylindrical-conical-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 suitable vibration amplitude was reported geometrically, it was applied in a simple shear extrusion process. Finally, the resonance frequency simulation results of 19.927 kHz for the cylindrical-exponential-cylindrical horn and the value of 21.381 kHz for the cylindrical-conical-cylindrical horn were reported. By comparison under the same design and simulation conditions, cylindrical-exponential-cylindrical horn performed better and provided more ideal adaptation to the generator resonant frequency.

Paper URL