Author:
Scampone Giulia,Pirovano Raul,Mascetti Stefano,Timelli Giulio
Abstract
AbstractThis research aimed to study the formation and distribution of oxide-related defects in the gravity die casting process of an AlSi7Cu0.5Mg alloy by using experimental and numerical investigations. Metallographic and image analysis techniques were conducted to map the distribution of oxide inclusions inside the casting at the microscopic level. Numerical simulations were used to analyse the filling and solidification stages, and to foresee the turbulence of the melt and the formation of the oxide defects. The results show that most of the defects were correlated with the oxide layers or bubbles entrained inside the liquid metal. The accuracy of the numerical code in simulating the metal fluid-dynamic behaviour and the heat transfer was verified, and the results were in agreement with the experimental findings. The numerical distribution of defects was consistent with the experimental results, proving that the model successfully predicted the formation of oxide-related defects.
Funder
Fondazione Cassa di Risparmio di Padova e Rovigo
Publisher
Springer Science and Business Media LLC
Subject
Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Software,Control and Systems Engineering
Reference47 articles.
1. Jiang W, Fan Z, Liu D, Wu H (2013) Influence of gas flowrate on filling ability and internal quality of A356 aluminum alloy castings fabricated using the expendable pattern shell casting with vacuum and low pressure. Int J Adv Manuf Technol 67:2459–2468. https://doi.org/10.1007/s00170-012-4663-5
2. Dispinar D, Campbell J (2007) Effect of casting conditions on aluminium metal quality. J Mater Process Technol 182:405–410. https://doi.org/10.1016/jjmatprotec200608021
3. Tiryakioğlu M, Yousefian P, Eason PD (2018) Quantification of entrainment damage in A356 aluminum alloy castings. Metall Mater Trans A 49:5815–5822. https://doi.org/10.1007/s11661-018-4865-z
4. Sarfraz S, Jahanzaib M, Wasim A, Hussain S, Aziz H (2017) Investigating the effects of as-casted and in situ heat-treated squeeze casting of Al-35 % Cu alloy. Int J Adv Manuf Technol 89:3547–3561. https://doi.org/10.1007/s00170-016-9350-5
5. Campell J (2011) Complete casting handbook: metal casting processes, metallurgy, techniques and design, 2nd edn. Butterworth-Heinemannpp, Oxford-Waltham pp 11-13, 17-50, 67-72, 607-613, 776, 833-852, 899-901
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