3D Printing Technology

in Here is your first Forum Thu Mar 23, 2017 9:02 pm
by Eyes123456 • 33 Posts

3D printing is just one of the fast-growing technologies that makes real life look like a few years ago in science fiction. Recently, a company has created a new 3D 100mw laser pointer printing technology, you can use 3D light field to quickly form the object. The company can greatly speed up the printing process by projecting the hologram on the printed material by the company's software-defined light technology. Build an enhanced reality system that prints solutions around its holographic chip design. The company also offers practical applications for smart glasses and smart helmets.

The chip uses tunable crystals to control the amplitude and phase of the reflected light. It can create a solid object by projecting the hologram into the photoactivating monomer. In addition, how the system creates a paper clip in just five seconds. And it does not require a support structure and does not need to leave any markings on the object from the layers required in the conventional system. The new technology can only print small objects, but the company claims it should be able to increase the size of the print form and the size of the holographic chip. However, the heat generated by the system will have to be adjusted in such a way as to prevent the part of the object from melting during the printing process.

Although now, can directly print precious metals and better quality 400mw green laser sintering of the 3D printer has emerged, but the Institute of this study is still a viable solution. I believe that as long as the final commercialization, it must be able to accelerate the transformation of 3D printing technology in the jewelry industry application. The Institute has recently developed a new method that can significantly improve the quality of 3D print gold by selective laser melting technology. This method can provide more design flexibility for 3D printing jewelry, watches, and even gold as a conductor of electronic products.

Laser rapid prototyping is a new manufacturing technology that integrates advanced technologies such as CAD, CAM, CNC, laser, precision servo drives and new materials. Compared with the traditional manufacturing method, the prototype has the advantages of replicability and high interchangeability. The manufacturing process is independent of the geometrical shape of the prototype. The processing cycle is short, the cost is low, the general manufacturing cost is reduced by 50%, the processing period is shortened by more than 70% Technology integration, to achieve design and manufacturing integration.

Selective laser sintering technology, also known as light curing rapid prototyping technology, the principle is the computer control of the 200mw green laser beam on the photosensitive resin as the raw material surface by point scanning, the resin area of ​​the scan area (about a few tenths of a millimeter) to produce photopolymerization And curing, forming a thin layer of parts. The table down a layer of thick distance, in order to cure a good resin surface and then apply a layer of new liquid resin, the next layer of the scanning process, so repeated until the entire prototype is completed. Since the photopolymerization is based on the effect of light rather than on the basis of heat, only the lower power source is required at work. In addition, because there is no thermal diffusion, coupled with the chain reaction can be well controlled, to ensure that the polymerization does not occur outside the laser point, and thus high precision, good surface quality, raw material utilization close to 100%, can create shape Complex, fine parts, high efficiency. For larger parts, you can use the first block forming and then bonding method for production.

Laser welding technology and other rapid prototyping technology is basically the same, but also through the table CNC, to achieve the laser beam on the powder scanning, cladding, and ultimately shape the shape of the required parts. The results show that the factors such as the part of the part, the thickness of the 30mw green laser cladding, the output power of the laser, the spot size, the intensity distribution, the scanning speed, the scanning interval, the scanning mode, the powder feeding device, the powder feeding amount and the size of the powder particles Forming parts of the accuracy and strength of the impact. The difference with other rapid prototyping techniques is that laser cladding can be made into very dense metal parts with a strength that meets even more than those produced by conventional casting or forging methods, and thus has good application prospects.

Laser Sheet Laminate Manufacturing Technology is a new type of rapid prototyping technology commonly used to make molds. The principle is to first use high-power 50mw green laser beam cutting metal sheet, and then multi-layer stack, and its shape gradually change, and ultimately get the required prototype of the three-dimensional geometry. Laser sheet stack manufacturing technology to produce die, the cost of about 1/2 than the traditional method, the production cycle greatly shortened. Used to make composite mold, thin material mold, progressive die, the economic benefits are also very significant.




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