Neil Hopkinson, a professor of mechanical engineering at the University of Sheffield in the United Kingdom, has been developing the new method, called high-speed sintering, for over a decade. Laser sintering machines build objects by using a single-point laser to melt and fuse thin layers of powdered polymer, one by one. Hopkinson replaced the laser system, which is both expensive and slow, with an infrared lamp and an ink-jet print head. The print head rapidly and precisely delivers patterns of radiation-absorbing material to the powder bed. Subsequently exposing the powder to infrared light melts and fuses the powder into patterns, and the machine creates thin layers, one by one—similar to the way laser sintering works, but much faster. Hopkinson’s group has already shown that the method works at a relatively small scale. They’ve also calculated that, given a large enough building area, high-speed sintering is “on the order of 100 times faster” than laser sintering certain kinds of parts, and that it can be cost competitive with injection molding for making millions of small, complex parts at a time, says Hopkinson. Now the group will actually build the machine, using funding from the British government and a few industrial partners. Cont'd...
DUNWOODY COLLEGE OF TECHNOLOGY INCORPORATES STRATASYS' ADDITIVE MANUFACTURING TECHNOLOGY INTO ITS CURRICULUM
Technical college adds additive manufacturing certificate program
The new designer materials integrate the structure of two or more separate functions at the nanoscale, while keeping the individual materials physically separate.
Hybrid Manufacturing - what is all the fuss about?
New UL 3D printing facility will offer advanced training, validation programs, advisory services and research
Sciaky, Inc. to Highlight New Metal Additive Manufacturing Systems at RAPID 3D Printing Event in Long Beach, CA
The RAPID 3D Printing Event takes place May 19-21 at the Long Beach Convention Center in Long Beach, California.
Plastic DOEs are used in particular in systems of mass production.
DoD-funded project will address issues in modeling behavior of materials.
Stratasys Additive Manufacturing Solutions Selected by Airbus to Produce 3D Printed Flight Parts for Its A350 XWB Aircraft
Leading companies in a variety of industries, from aerospace and automotive to consumer goods and medical, are partnering with Stratasys to adopt additive manufacturing strategies.
Midwest Prototyping Becomes First Company to Implement On-Site Additive Manufacturing Certificate Testing
The new Additive Manufacturing Certificate Program is managed by SME (formerly the Society of Manufacturing Engineers).
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maxon launches the next generation of positioning controllers - the EPOS4. A high performance module with detachable pin headers and two different power ratings. With a connector board, the modules can be combined into a ready-to-install compact solution. Suitable for efficient and dynamic control of brushed and brushless DC motors with Hall sensors and encoders up to 750 W continuous power and 1500 W peak power. The modular concept also provides for a wide variety of expansion options with Ethernet-based interfaces, such as EtherCAT or absolute rotary encoders.