The use of metal powder in the 3D printing industry is not easy. The metal powder is different from the plastic powder. The latter can be formed simply by pressing. The metal powder needs to be sintered in addition to pressing to complete the 3D printing product, and the process is costly.
“But this is the direction of future development.†At the end of last year, Pangang Research Institute planned to carry out research on 3D titanium powder printing equipment and materials. According to the Sichuan Daily News, the project’s main researcher, Mu Tianzhu, found that the price of spherical titanium powder for 3D printing on the international market is as high as 5 yuan per gram, which is more expensive than pure silver.
With high costs, the current market is confined to the military industry, and civilian use seems to be a fantasy. If the cost drops? "3D printing should be the best way to use titanium powder." Mu Tianzhu said that once the 3D printing technology was researched for the efficient use of titanium powder, it has now allowed the field of plastics and other powders to take off.
Due to the special properties of titanium metal, the process from titanium sponge to titanium products includes three or four processes, the loss rate is as high as 70%, and steel is only about 30%. In contrast, the titanium powder is directly from the sponge titanium to titanium products, and the loss is greatly reduced. In spite of this, under the current circumstances, the cost of 3D-printed titanium powder materials is still tens of times more expensive than ordinary processing. "If the cost is reduced, this will be a big market." Mu Tianzhu plans to set up equipment this year and complete debugging and reconstruction next year. Zong Huahui, who is secretary general of the Shanghai New Materials Association Powder Metallurgy Branch, believes that 3D printed titanium products may play a role in the medical field. “Private ordering will be an important market for future 3D printed titanium products. Titanium stents can be manufactured with 3D printing to better fit the body."
The turntable rotation of LED Cup Injection Molding Machine is controlled by an independent servo motor, with a positioning accuracy of 0.16mm. Three lower molds produce continously by rotating the turntable table by 120 degrees horizontally. The positioning of the rurntable surface is locked with fixing pins to ensure high-precision positioning after rotation stops, so that the upper and lower molds can be clamped more accurately. Besides, this type injection machine assembled with automatic devices such as automatic insertion and removal, production cycle time is shortened from original 30 seconds by manual operation into 15 seconds, finally improve production output and realize automatic operation of the whole machine.
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