Application No./Patent No.: 2018104170508 Application date: May 3, 2018.
Inventor/Designer: Cao Yu, Li Tao, Yang Huan, Xue Wei, Ye Zongyi, Liu Wenwen, Pan Qiaofei.
The invention provides a metal three-dimensional printing forming method based on parallel pulse arc melting, which comprises the following steps: preparing CAD data files of three-dimensional printing forming parts, forming substrates and micro metal wire arc transition array plates; Filling the closed outline figure of each layer of slices in an inner part in a block way; In the molding chamber, according to the small blocks filled in blocks of the current slice, the tungsten electrode switch is controlled to be turned on, and a pulse high voltage is supplied to the tungsten electrode, so that a high-voltage arc discharge effect is generated between the tungsten electrode and the tail end of the fine metal wire, and the fine metal wire melts, and then vertically impacts the current molding surface of the molding substrate, so that the corresponding small block increases a certain thickness; Repeat until all layers are formed. According to the invention, the droplet transfer forming and automatic paving of parallel pulse discharge are realized, any single layer is formed at one time, and the forming speed is greatly improved in an order of magnitude compared with the traditional method, so that the invention is a new method for three-dimensional forming of ultra-high-speed three-dimensional parts.
