Design optimization of two diagonal slotted block horn for ultrasonic plastic welding
List of Authors
  • Zaid Tahseen Abdullah , Ziad Shakeeb Al Sarraf

Keyword
  • Design optimization, diagonal block horn, modal analysis, harmonic analysis

Abstract
  • One of the inescapable techniques which are widely used in different engineering fields and manufacturing industry is ultrasonic plastic welding. It is recommended to make the design of the main components of ultrasonic technique to have high precision and good accuracy. Ultrasonic horn remains the main components, as this part is always working contact to the working area. Therefore, design and optimization of this tool become more essential due to large number of application. In this research a horn type block contain two slots was successfully designed and its dimensions were precisely optimized utilising from the principles of ANSYS finite element software package, theoretical calculation and mathematical analysis expression in order to conduct the requirements application of plastic welding. The three dimensional model analysis of the block horn was carried out to identified from many criteria such as allow the horn to vibrate in purely longitudinal manner relative to the frequency excitation of generator, normally 20 kHz, obtained acceptable tuning mode and avoidance from participating with other non tuned flexural and torsional modes, insure high sufficient displacement amplitude at working area and low stress concentration shift close to the area of zero deformation, getting high surface uniformity at block horn tip and ensure the horn having acceptable gain. High amplification of block horn with configuration of two slots was calculated using modal and harmonic analyses of simulation models, while optimization of designed horn was done through performing response surface methodology (RSM) matrix obtained from MINITAB software and further connected with genetic algorithm (GA) by aid using of MATLAB software code. The results inferred that good estimation and prediction of vibration amplitude for the exciting slotted block horn can help to ensure sufficient amount of energy delivered to the working area for any application referred to plastic welding.

Reference
  • 1. Rozenberg L. Physical principles of ultrasonic technology: Springer Science & Business Media; 2013.

    2. Kim JO, Kim JH, Choi S. Vibroacoustic characteristicsofultrasonic cleaners. Appl Acoust. 1999;58:211-28.

    3. Al-Sarraf, Z. S. "A study of ultrasonic metal welding," PhD thesis, University of Glasgow, UK, 2013

    4. M. Lucas, A. Cardoni, E. McCulloach, G. Hunter, and A. MacBeath,"Applications of power ultrasonics in engineering," Applied Mechanics and Materials, vol. 13-14,pp. 11-20, 2008

    5. Sun-Rak Kim, Jae-Hak Lee, Choong D Yoo, Jun-Yeob Song, Seung S Lee (2011) Design of highly uniform spool and bar horns for ultrasonic bonding. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 58:2194-2201. https://doi.org/10.1109/TUFFC . 2 0 1 1.2069.

    6. M. R. Rani and R. Rudramoorthy, “Computational modeling and experimental studies of the dynamic performance of ultrasonic horn profiles used in plastic welding.,” Ultrasonics, 2013, doi: 10.1016/j.ultras.2012.11.003.

    7. Roopa Rani M, Prakasan K, Rudramoorthy R (2015) Studies on thermo-elastic heating of horns used in ultrasonic plastic welding. Ultrasonics 55:123–132. https://doi.org/10.1016/j.ultras.2014.07.005

    8. G. Han, K. Li, Z. Peng, J. Jin, M. Sun, and X. Wang, “A new porous block sonotrode for ultrasonic assisted micro plastic forming,” Int. J. Adv. Manuf. Technol., vol. 89, no. 5, pp. 2193–2202, Mar. 2017, doi: 10.1007/s00170-016-9179-y.

    9. Ziad Shakeeb Al Sarraf, Majid Midhat Saeed (2019) Design and analysis of slotted block horn used for ultrasonic power applications. Journal of southwest jiaotong university 54:1–10.https://doi.org/10.35741 /issn.0258-2724.54.5.28.

    10. Elangovan S, Anand K, Prakasan K (2012) Parametric optimization of ultrasonic metal welding using response surface methodology and genetic algorithm. International Journal of Advanced Manufacturing Technology 63: 561-572. https:// DOI 10.1007/s00170-012-3920-y.

    11. Elangovan Sooriyamoorthy, Shenton Ponnayya John Henry, Prakasan Kalakkath (2011) Experimental studies on optimization of process parameters and finite element analysis of temperature and stress distribution on joining of Al–Al and Al–Al2O3 using ultrasonic welding. International Journal of Advanced Manufacturing Technology 55:631–640. https:// DOI 10.1007/s00170-010-3059-7.

    12. V. V. L. Kothuru, V. S. Sistla, I. H. Mohammed, and A. Jagana, “Design and Numerical Analysis of Rectangular Sonotrode for Ultrasonic Welding,” Trends Sci., vol. 19, no. 11, Art. no. 11, May 2022, doi: 10.48048/tis.2022.4215.

    13. S. Elangovan, A. Kumarasamy, and K. Prakasan, “Parametric optimization of ultrasonic metal welding using response surface methodology and genetic algorithm,” Int. J. Adv. Manuf. Technol., vol. 63, 2012, doi: 10.1007/s00170-012-3920-y