Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 05, 2021 - September 08, 2021
Additive manufacturing (AM) is a rapidly developing technology. One of the main AM technologies is the use of thermal energy, such as lasers, to melt and deposit metal powder materials. This AM can form multilayer structures, but may cause abnormal melting of some materials. On the other hand, cold spray additive manufacturing (CSAM), has advantages such as the ability to form metal particles without melting them and high processing speed. However, it has some problems such as large forming patterns and triangular cross-section of layers. In our laboratory, as a part of AM, we tried to form thin copper layers of several millimeter width by CS. In this experiment, in order to obtain basic data for CSAM using a nozzle with a rectangular cross-section, we attempted thin wall forming of copper with a height of 20 mm using a rectangular cross section nozzle, observed the cross-section of the formed object, and compared it with that using a circular cross section nozzle.
