METHOD OF 3D PRINTING METAL WORKPIECE USING LASER AND SYSTEM THEREOF

WIPO Patent Application WO/2019/000705

A1

A method of 3D printing a metal workpiece using a laser and a system thereof. The method comprises the following steps: step 1, performing 3D sintering on metal powder using a continuous laser or pulsed laser; step 2, performing a laser shock process of laser induced shock waves on the 3D-sintered component using a short-pulse-width laser; step 3, performing a polishing process on the 3D-sintered component using the continuous laser or pulsed laser. When an object to be printed comprises different powder materials, suitable parameters such as wavelength, pulse-width and pulse energy of the laser are selected according to the optical characteristics of each powder material and the above three steps are applied to achieve 3D printing of a functionally graded object. The level of sintering of a laser is controlled by changing the pulse-width of a laser in the process of printing a metal workpiece, and thus the phenomena such as high porosity, overburn and spheroidizing during the printing process of a metal workpiece can be improved and the density of the metal workpiece is increased.

ZHAO XIAOJIE (US)
TAO SHA (CN)
QIN GUOSHUANG (CN)

PCT/CN2017/106247

January 03, 2019

October 16, 2017

Click for automatic bibliography generation  

INNO LASER TECH CORPORATION LIMITED (CN)
CHANGZHOU INNO MACHINING CO LTD (CN)

B22F3/105

US20170087670A1	2017-03-30
CN205888079U	2017-01-18
CN101780544A	2010-07-21
CN105945284A	2016-09-21
CN104259459A	2015-01-07
CN105798297A	2016-07-27

SHENZHEN TALENT PATENT SERVICE (CN)

View/Download PDF      PDF Help

Previous Patent: GASTRIC DIVERTER AND ANTIBACTERIAL DIGESTIVE TRACT CATHETER THEREOF

Next Patent: METHOD FOR CLEANING MAGNETIC BEADS OF ANALYZER