Fundamentals of Wire Arc Additive Manufacturing Processes I — Lesson 1

This lesson covers the fundamentals of additive manufacturing, specifically focusing on wire additive manufacturing processes. It delves into the different types of additive manufacturing technologies such as stereolithography, powder bed fusion, material jetting, binder jetting, and directed energy deposition. The lesson also discusses the advantages and limitations of these technologies. For instance, wire additive manufacturing is suitable for fabricating large structures but may not provide a smooth surface finish. The lesson further explains the importance of controlling various parameters in additive manufacturing, such as the laser's focus diameter, scanning speed, powder particle size, and solidification time. It also highlights the use of different heat sources like lasers and electron beams in these processes. The lesson concludes by discussing the application of these technologies in different materials and industries.

Video Highlights

01:38 - Principle and development of additive manufacturing technologies
06:55 - Different types of additive manufacturing processes
14:26 - Importance of parameters in additive manufacturing
23:18 - Process of Selective Laser Melting in additive manufacturing
38:58 - Advantages and limitations of Wire Arc Additive Manufacturing
45:20 - Process of Cold Metal Transfer in additive manufacturing

Key Takeaways

- Additive manufacturing involves creating objects layer by layer using different technologies.
- Wire additive manufacturing is beneficial for creating large structures but may not provide a smooth surface finish.
- Controlling various parameters like laser's focus diameter, scanning speed, powder particle size, and solidification time is crucial in additive manufacturing.
- Different heat sources like lasers and electron beams can be used in additive manufacturing processes.
- Additive manufacturing technologies can be applied in different materials and industries, including metallic components and the medical field.