Jet Sintering of High Temperature Carbon Steel Powder Particles

• Main Author: Muhammad Hafiz bin Zakaria, Muhammad Hafiz b Zakiah
• Format: Final Year Project
• Language: English
• Published: Universiti Teknologi Petronas 2009
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://utpedia.utp.edu.my/839/1/dissertation_chap1-chap3.pdf; http://utpedia.utp.edu.my/839/

Cutting process by using abrasive saw produces millions of tiny sparkling particles ripped apart from the original material. These particles are sent to fly in the air for a few milliseconds before hitting a substrate. If remain untouched, this particles will be collected as an aggregate on the surface of the substrate. It will gradually form a small hill with some interesting characteristics to be studied further. So, in this project, the author had studied the microstructure of the collected particles and learned about the new mechanism of sintering inside the material. In order to achieve the objective, the author cut the material into few parts. Then, the author mounted, grinded, polished and etched each part of it. Then, the author studied the samples under optical microscope. The author will also used Micro Vickers harness testing to check its mechanical properties. From all these steps, the author managed to observe some of the steel microstructure from it. The author also calculated the porosity of the material under microscopy using scale approximation. The author was able to learn about new kind of mechanism inside the material which will help us to understand more about sintering process. As a conclusion, this project was based on research of new kind of mechanism involved in this material. It is just a matter of time for us to unlock the secrets of this technique, its mechanisms and the outcome from this procesS