Researchers have developed new 3D printing technology that permanently changes the shape of the part

3D printing is a kind of rapid prototyping technology. It is a technique for constructing objects by layer-by-layer printing based on digital model files and using adhesive materials such as powdered metal or plastic.

3D printing technology has been used in many industries, and high technology has contributed greatly to our lives. Recently, researchers from a group of multinational organizations have developed a new 3D printing method that creates a printing component that can permanently change its original shape. This technology is suitable for multi-domain applications and is expected to be commercially available. Researchers at Georgia Tech, Singapore University of Technology and Design (SUTD), and Xi'an Jiaotong University in China created print assemblies by printing shape memory polymers, each of which reacted differently when heated. Jerry Qi, a professor at the Georgia Institute of Technology's School of Mechanical Engineering, said the team used computer simulation to design composite components in which the hard material has a shape and size that prevents the release of pressure inside the soft material after 3D printing. Upon heating, the hard material softens and the soft material releases its stress, resulting in a change in the shape of the product. “In our new approach, objects are made up of two materials, one soft and one hard.” Professor Jerry Qi said in an interview: “We use the difference in the nature of the materials and the production process. Some residual strains contribute to the shape change. By placing the two materials in different spatial locations and setting the printing parameters, the second shape can be designed." He said that although the shape of the object in other 3D printing methods can be changed, once When the environment changes, these objects will return to their original shape. The new method is novel because the changed object retains its shape. Moreover, another advantage of the method is ease of operation and implementation, which means that complex shape changes can be accomplished quickly and easily. Researchers say the new 4D objects created by this method have a variety of new product features, such as products that can be stacked flat or rolled up for transport and then deployed. This design is also very suitable for transforming objects from one complex shape to another, "for example, biomedical stents or biomedical devices that can be used for minimally invasive surgery. It may also be used in electronic devices or packaging, some original components. Put it together, but then assemble it into a new structure.” Other applications of the method include designing robots (300024) and toys with similar design requirements. According to reports, the research results have been published in the recently published issue of Science Advances. Jerry Qi's team is currently using commercial printers, which limits their material choices. He said that in the future, the team hopes to have more material choices for better control and design. Jerry Qi added that researchers are working hard to integrate the approach into formal design tools.

Drill Auger

Drill Auger,Auger Bit,Auger Drill Bit,Garden Auger

Shaoxing Haotuo Machinery CO., LTD. , https://www.haotuochinatools.com