Understanding and Further Development of Directed Energy Deposition Process

Dear Colleagues,

Directed energy deposition (DED) is a type of additive manufacturing in which material is melted using a heat source such as an arc or laser and then deposited layer by layer to fabricate three-dimensional products without joints. This process is suitable for fabricating complex shape structures and has many other advantages, such as a significant reduction in the amount of materials and labor required. Furthermore, it can also be applied for fabricating functionally graded materials. Accordingly, it has become one of the manufacturing processes attracting particular attention in recent years. In order to enhance the strength of the DED process, significant research to understand the process mechanisms on a scientific basis and develop advanced processes has been actively carried out all over the world. However, further work is still required in this field. The scope of this Special Issue focuses on the understanding and further development of the DED process. The topics of interest include, but are not limited to, the following:

• Developments of advanced DED process;
• Modeling and simulation of DED process;
• Heat source properties;
• Heat source–material interaction mechanisms;
• Fluid mechanics and heat transfer in weld pools;
• Solidification and microstructure formation mechanisms.

We would like to invite you to submit original research articles and reviews related to any topics mentioned above.

Dr. Shinichi Tashiro
Guest Editor

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