Trend and Development of Semisolid Metal Joining Processing

Abstract

The semisolid metal joining (SSMJ) process or thixojoining process has recently been developed based on the principles of SSM processing, which is a technology that involves the formation of metal alloys between solidus and liquidus temperatures. Thixojoining has many potential benefits, which has encouraged researchers to carry out feasibility studies on various materials that could be utilized in this process and which could transform the production of metal components. This paper reviews the findings in the literature to date in this evolving field, specifically, the experimental details, technology considerations for industrialization, and advantages and disadvantages of the various types of SSMJ methods that have been proposed. It also presents details of the range of materials that have been joined by using the SSMJ process. Furthermore, it highlights the huge potential of this process and future directions for further research.

Study on the Rheology of AlSi4Mg2 Alloy at Steady State

“…Semisolid metal (SSM) forming is catching more and more theoretical and technical attentions because of its distinctive potential in near-net shaping [1]. In recent years, the light alloys have been studied extensively since its excellent characteristics have important effects on SSM processing [2][3][4][5][6][7][8][9]. Among them, as the most abundant metal on earth, aluminium alloys have the low-cost property, which are applied extensively to automobile and aerospace [2][3][4][5]8,9].…”

“…In recent years, the light alloys have been studied extensively since its excellent characteristics have important effects on SSM processing [2][3][4][5][6][7][8][9]. Among them, as the most abundant metal on earth, aluminium alloys have the low-cost property, which are applied extensively to automobile and aerospace [2][3][4][5]8,9]. Thus, the study on the rheological behavior of AlSi4Mg2 alloy has significant meaning for the improvement and the development of SSM processing.…”

Microstructure and Mechanical Properties of Thixowelded AISI D2 Tool Steel

“…Therefore, an innovative route that can avoid the above mentioned problems inherent in fusion welding is required. Thixojoining is a possible technique that can weld the AISI D2 cold-work tool steel free from the above mentioned problems, as the process is carried at the semisolid state where the mechanisms of solidification and heat flow are different from other welding processes [2][3][4].…”

“…During the last 30 years, several authors have shown that the thixojoining process has the potential to be used for a wide range of metal production processes. Notwithstanding some technical and technological differences between the available semi-solid joining processes, they can be classified into four categories: (1) joining metals by using semisolid slurries, (2) addition of functional features, (3) semisolid stir joining, and (4) semisolid diffusion joining [2].…”

“…The products can be utilized in decoration various wall plates and floor panels. Furthermore, metal/glass joining products have great capabilities to add other functional properties to materials to produce lubricated, corrosion-proof, antiwear or heatresistant items [2].…”