Manufacturing & Prototyping

3D Printing Today: How Industry is Using and Benefiting from Additive Manufacturing Technology

Are you currently using or planning to implement 3D printing? Find out how your business compares to the broader industry in this major new study, conducted with NASA Tech Briefs magazine. Among the study's conclusions:

Posted in: White Papers

Read More >>

Aluminum Rocket Engine Injector Fabricated Using 3D Additive Manufacturing

Marshall Space Flight Center, Alabama Liquid rocket engine injectors can be extremely expensive to manufacture and hard to iterate to achieve high performance. Internal sealing points can also be the source of reliability issues. The technology disclosed here covers the application of a 3D additive manufacturing (AM) process to produce a functional aluminum injector for liquid propellant rocket engines, along with injector and overall engine design features that optimize the application of such processes to improve performance, reliability, and affordability relative to components produced using standard machining processes and designs. Aluminum was used for the injector instead of higher- temperature metals like stainless steel because its thermal conductance properties provide more opportunity to leverage the cooling potential of liquid oxygen and other cryogenic propellants.

Posted in: Briefs

Read More >>

Making Flexible Ablators that are Flexible Char Formers

Ames Research Center, Moffett Field, California An approach was developed for making low-density, flexible ablators for a thermal protection system (TPS) from a flexible fibrous carbon substrate and a polymer resin. The material is foldable and stowable, and can be deployed in space without compromising performance. In addition, the material can be stowed in space for very long periods of time (years) without compromising deployability or performance. These flexible ablators offer an alternative to rigid TPS materials, thereby reducing design complexity and cost. On charring, the flexible ablative TPS retains its flexibility. After charring, the TPS has comparable flexibility and mechanical properties to the virgin material.

Posted in: Briefs

Read More >>

Method for Providing Semiconductors Having Self-Aligned Ion Implant

Refined self-aligned ion implantation for improved SiC high-temperature transistors. John H. Glenn Research Center, Cleveland, Ohio This is a modification to technology for realizing durable and stable electrical functionality of high-temperature transistors. This modification is believed crucial to experimental implementation of SiC junction field effect transistors that electrically operated continuously at 500 °C for over 10,000 hours in an air ambient with less than 10% change in operational transistor parameters.

Posted in: Briefs

Read More >>

Femtosecond Laser Processing of Metal and Plastics

Precision machining can be achieved with no thermal affects and minimal post-processing. Amada Miyachi America, Monrovia, California and Jenoptik, Jena, Germany While precise and fast, the down side to cutting with microsecond (ms) fiber lasers has been that the parts require a number of post-processing operations after they are cut, which add significantly to part cost, and can also damage mechanically delicate parts.

Posted in: Briefs

Read More >>

Multi-Material, Multi-Color 3D Printing Creates New Possibilities

Major advances in multi-material, multi-color 3D printing technology are driving a fundamental shift in how people are going about designing, engineering, and manufacturing products. The advanced capabilities of state-of-the-art, multi-material, multi-color systems such as the Objet®500 Connex3™ from Stratasys, are opening up many new applications. Making this possible is the Connex3’s ability to produce high-resolution, highly detailed, and functional parts from even the most complex designs. The Connex3 is the world’s first 3D printer that combines multiple materials and colors in a single build. With it, users can simultaneously tailor a part’s material properties, create sharp and well-defined boundaries between different materials, and achieve a sophisticated look and feel that closely mimics a finished product’s aesthetics. This white paper explores the technology at the heart of the Connex3’s performance, and shows how one customer is benefitting from it in many different ways.

Posted in: White Papers

Read More >>

From Tires to Interiors, Bentley Designs with 3D Printing

When your very name conjures up visions of luxury, quality, and detail, your design studio has to employ the very best minds working with the very best technology. Founded from modest beginnings in England in 1919, Bentley Motors Ltd. is dedicated to making responsive and powerful Grand Tourer automobiles with the stamina to cross continents at speed, in refined comfort and style. Little surprise then, that Bentley should equip its design studio with Objet30 Pro desktop and Objet500 Connex multi-material 3D printers.

Posted in: White Papers

Read More >>