technology allows for 3D printing. Its most notable advantage is the ability to generate parts in any shape directly from computer graphics data, without any machining and molds. This greatly reduces the product development cycle while increasing productivity and reducing costs. Metal powder, the main raw material in 3D printing of metal components, has caught people’s interest. 3D Printing Metal Powder is the most important and valuable part of 3D Printing Industry Chain of metal parts.
Metal powder preparation process
The metal powder preparation processes can currently be divided into reduction, electrolysis and carbonyl decomposition methods, as well as grinding and atomization. According to the process of preparation. In the powder metallurgy sector, powders produced by reduction and electrolysis are the most commonly used raw materials. The atomization technique can be used to make alloy powder and modern atomization can also control powder shape. The development of atomization cavities has greatly improved the efficiency of atomization, making the atomization technique the most popular method to produce powder. The atomization technique meets the specific requirements of 3D printed consumable metals powder. The atomization process is a way to mechanically reduce molten metal particles down to less than 150mm.
Water atomization
The water atomization process is one of the cheapest methods of production for atomized powder. The atomization media water is cheap and easy to get, but it also provides excellent atomization. The domestic water atomization technique is used mainly to produce steel, matrix powders for diamond tools, prealloy powders for oil-bearing rollers, powders for hard surface technologies, and iron-based or nickel-based magnet powders. The specific heat of water being much greater than the gas’s, it is possible that the metal droplets will solidify and become irregular during the atomization. Water will react with other metals or alloys that have a high level of activity. In addition, contact with the water during the atomization will increase the amount of oxygen in the powder. This limits the use of water atomization for metal powders of high sphericity with low oxygen contents.
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