Understanding Metal Additive Manufacturing — Lesson 4

This lesson covers the process of Metal Additive Manufacturing using a 3D printer. It explains the conversion of a CAD file into an SQL format and the layer-by-layer development of the object. The lesson also discusses the different types of additive manufacturing, including polymer, wood, and ceramics, with a focus on metal additive manufacturing. It highlights the role of various 3D printer developing companies and the concept of a work envelope. The lesson further delves into the three major components of a printer, the process of printing, washing, and sintering. It also explains the concept of multi-jet printing and the factors affecting the speed and cost of printing. The lesson concludes with a demonstration of the printing process, including the preparation of the bed, setting the vacuum, and the sintering process.

Video Highlights

00:24 - Explanation of the process of converting CAD files into SQL format for 3D printing
07:53 - Demonstration of the process of setting up the printer
14:01 - Explanation of the process of creating a vacuum in the printer
21:10 - Demonstration of the process of starting a print
34:12 - Explanation of the process of washing the printed component
40:59 - Discussion on the final steps of the 3D printing process

Key Takeaways

- Additive manufacturing involves the layer-by-layer development of an object from a CAD file.
- Metal additive manufacturing has gained popularity with advancements in 3D printing technology.
- The size of the printer that it can hold is known as the work envelope.
- The printing process involves three major components: printing, washing, and sintering.
- Multi-jet printing can potentially outperform conventional machine methods.
- The precision of the print depends on factors such as the nozzle diameter.
- The sintering process involves heating the component to a specific temperature depending on the material.