Advances in Solid-State Welding Processes

Dear Colleagues,

Solid-state welding is a relatively new welding technology. Compared with traditional fusion welding, it can avoid many of the defects associated with fusion welding, such as pores and solidification cracks. Furthermore, solid-state welding produces joints with high performance.  Therefore, it is widely used in aerospace, automobile manufacturing, and other fields. Research on solid-state welding is of great significance for improving welding quality, reducing production costs, and improving environmental pollution.

At present, solid-state welding technology has made certain progress, including rotary friction welding, friction stir welding, linear friction welding, diffusion bonding, resistance welding, and other methods. These methods have achieved certain results in practical applications, but there are still some difficulties that need to be solved in other aspects.

Current solid-state welding technology is suitable for high-strength and reliable welding of a variety of materials such as steel, aluminum alloys, titanium alloys, and other materials. However, further research and development of suitable solid-state welding methods are needed. Since the solid-state welding process has strict requirements on parameters such as temperature, pressure, and friction speed, the welding process needs to be precisely controlled to improve the welding quality and stability. At present, the detection of solid-state welded joints mainly relies on microstructure observation and mechanical property testing. However, these methods are subjective and uncertain, and more accurate and reliable welded joint quality inspection technologies need to be researched and developed.

In summary, the research on solid-state welding technology is of great significance. It is my great pleasure to invite everyone to submit a manuscript for this Special Issue. Full papers, communications, or reviews on solid-state welding are welcome.

Prof. Dr. Peng Li
Dr. Feng Jin
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• solid-state welding process
• friction-based welding processes
• diffusion bonding
• resistance welding
• rotary friction welding
• friction stir welding
• linear friction welding
• welding of dissimilar metals
• microstructure evolution and joint performance