Research Progress of Arc Additive Manufacture Technology

Area of Science:

• Materials Science and Engineering
• Manufacturing Technology
• Mechanical Engineering

Background:

• Additive manufacturing (AM) technologies have advanced significantly over the last 30 years.
• Wire-based AM offers advantages like high deposition rates and density, ideal for large, complex components.
• Wire arc additive manufacturing (WAAM) is a key technology within this field.

Purpose of the Study:

• To review the concept, history, and current status of arc additive manufacturing.
• To analyze WAAM principles, processes, and applications.
• To identify areas for improvement and future research directions in WAAM.

Main Methods:

• Literature review of international research on arc additive manufacturing.
• Analysis of WAAM principles, development history, and practical applications.
• Focus on forming systems, materials, defect control (residual stress, pores), and performance enhancement.

Main Results:

• WAAM research is predominantly in the experimental stage, lacking in-depth mechanism exploration.
• Current focus is on process control, defect reduction, and property improvement.
• Significant potential exists for WAAM in modern manufacturing.

Conclusions:

• WAAM technology requires more systematic research into the physical processes of molten pool formation, stability, and evolution.
• In-depth theoretical and experimental studies are crucial for optimizing WAAM.
• Advancing WAAM will promote its application in modern manufacturing.