Author/Authors :
Mohammed, M.N. Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical and Materials Engineering, Malaysia , Omar, M.Z. Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical and Materials Engineering, Malaysia , Syarif, J. Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical and Materials Engineering, Malaysia , Sajuri, Z. Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical and Materials Engineering, Malaysia , Salleh, M.S. Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical and Materials Engineering, Malaysia , Alhawari, K.S. Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical and Materials Engineering, Malaysia
Abstract :
The aim of this study is to investigate experimentally the microstructural evolution of the joints using ledeburitic AISI D2 Tool Steel parts. The application of a new process of the semisolid joining of two parts of AISI D2 cold-work tool steel is proposed using a partial remelting method. Samples were heated in an argon atmosphere up to 1300°C and held for 10 minutes. Metallographic analyses along the joint interface showed a smooth transition from one to the other and neither oxides nor microcracking was observed. The current work successfully confi rmed that avoidance of a dendritic microstructure in the semisolid joined zone and high bonding quality components can be achieved without the need for force or complex equipment when compared to conventional welding processes.
Keywords :
Thixo , joining , direct partial re , melting , cold , work tool steel
