Abstract
In ultrasonic machining, the horn is used to transfer frequency and therefore has a critical role in dictating the machining performance. The design and material behaviour of ultrasonic horn have been explored through experimental and numerical methods by different research groups. However, the primary effect of temperature and thermal stress developed within the horn has been paid less attention. Therefore, the present study addresses the impact of thermal stress on a cylindrical horn using a three-dimensional numerical model for different horn materials viz. aluminium, titanium, and steel (AISI-4063). The numerical analysis results showed that natural frequency decreased with an increase in temperature irrespective of material selection. Furthermore, the amplitude and von Mises stress show growth with an increase in temperature. Moreover, titanium horn showed a minimum acoustic loss in terms of frequency followed by steel and aluminium due to material damping. Further, temperature change during the ultrasonic process has less effect on the titanium horn, followed by aluminium and steel due to its low thermal conductivity.
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Chandan, G.K., Sahoo, C.K. (2023). Numerical Investigation of the Effect of Developed Thermal Stress on Ultrasonic Horn Material. In: Sudarshan, T.S., Pandey, K.M., Misra, R.D., Patowari, P.K., Bhaumik, S. (eds) Recent Advancements in Mechanical Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-3266-3_38
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DOI: https://doi.org/10.1007/978-981-19-3266-3_38
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