Understanding Lasers in Metal Additive Manufacturing — Lesson 1

This lesson covers the fundamentals of metal additive manufacturing, focusing on the use of lasers in the process. It delves into the basics of lasers, their types, and their properties. The lesson also discusses the different methods of metal additive manufacturing, including powder bed fusion, directed energy deposition, and binder jetting. It further explains the concept of laser theory, laser components, and the two types of lasers - continuous and pulsed. The lesson emphasizes the importance of safety when working with lasers due to their high energy density. It also touches on the systems involved in additive manufacturing and the importance of understanding laser fundamentals for better output and efficiency.

Video Highlights

00:14 - Introduction to metal additive manufacturing and the importance of laser in the process
04:34 - Discussion on the concept of laser, its properties, and safety precautions when using it
11:59 - Explanation of the process of metal or wire arc feed deposition process
41:12 - Discussion on the concept of population inversion in laser systems and the importance of achieving it for lasing action

Key Takeaways

- Lasers are a powerful tool used in metal additive manufacturing due to their flexibility and economical nature.
- Different methods of metal additive manufacturing include powder bed fusion, directed energy deposition, and binder jetting.
- Safety is paramount when working with lasers due to their high energy density.
- The systems involved in additive manufacturing include laser theory, laser components, and the two types of lasers - continuous and pulsed.