Keyword: Milling

Briefs: Green Design & Manufacturing

Due to the chemical stability and durability of industrial polymers, plastic waste does not easily degrade in landfills and is often burned, which produces carbon dioxide and other hazardous gases. In...

Articles: Energy

Additive manufacturing is poised to liven the pace and scale of manufacturing. Deploying a range of techniques that use 3-D models to print objects layer by layer, it can generate a...

Briefs: Manufacturing & Prototyping
Tool Designs for Friction Stir Welding

Friction stir welding (FSW) is a solidstate welding process that shows promise in the aerospace industry. A new system of experimentation has been used to quickly make and screen new tool designs. After conducting a literature review, friction stir tools were designed to optimize material flow around the...

Briefs: Sensors/Data Acquisition

NASA’s Marshall Space Flight Center has a suite of novel technologies for digital control of electronic machinery. NASA developed the technologies for autonomous assembly of modular space structures. The...

Briefs: Mechanical & Fluid Systems

Aridged retention interface is necessary to secure planetary sample tubes within a caching system for use in future sample return missions. The assumed retention...

Briefs: Manufacturing & Prototyping
Fabrication of Ion Optics Using Additive Manufacturing

Ion optics, or grids, for ion thrusters or ion sources are traditionally made by subtractive manufacturing methods such as milling/drilling or chemically etching holes from thin sheets of bulk material. This innovation uses additive manufacturing (AM), or 3D printing, to build the grids from...

Articles: Robotics, Automation & Control

Although there are a number of variations of drive technologies for motion applications, there are a few that are used for the majority of systems being built today. These most common drives do take a bit...

Briefs: Imaging

Frequency combs derived from optical microresonators are required to reach an octave in span. This is required for self-referencing a comb. Presently, the frequency...

Application Briefs: Energy

Discussions of the efficient use of energy have become more frequent in many sectors of industry. Machine tools comprise numerous motors and auxiliary components whose energy consumption can vary strongly...

Briefs: Medical
Cryogenic Grinding for Mechanical Abrasion for Hardy Endospores

A comparative analysis was carried out between an emerging cryogenic grinding method and a conventional wet-chemistry/bead-beating endospore disruption approach. After extensive trial and error, it was determined that a regimen of three cryogenic grinding cycles of 2 minutes each...

Briefs: Manufacturing & Prototyping
Development of a Precision Thermal Doubler for Deep Space

Thermal requirements and a need for a very flat mechanical interface led to the development of a copper doubler for the titanium vault on the Juno Spacecraft. The vault is designed to contain the science instruments on the spacecraft, protecting them from damage due to the extreme...

Briefs: Materials
Preparation of a Bimetal Using Mechanical Alloying for Environmental or Industrial Use

Following the 1976 Toxic Substances Control Act ban on their manufacture, PCBs remain an environmental threat. PCBs are known to bio-accumulate and concentrate in fatty tissues. Further complications arise from the potential for contamination of commercial...

Briefs: Manufacturing & Prototyping

A lens that enables microscopic objects to be seen from nine different angles at once to create a 3D image has been developed. Other 3D microscopes use multiple lenses or cameras...

Briefs: Physical Sciences

The idea of designing a microfluidic channel to slope upward along the direction of flow of the liquid in the channel has been conceived to help prevent trapping of gas bubbles...

Articles: Manufacturing & Prototyping

Over the past 20 years, additive manufacturing technology has migrated from use in rapid prototyping to a full-fledged manufacturing solution, which is referred to as “direct digital...

Briefs: Manufacturing & Prototyping

A technique for making precise, microscopic holes and grooves in glass workpieces has been invented. The technique differs from both (1) traditional macroscopic mechanical drilling...

Briefs: Manufacturing & Prototyping
Making Complex Electrically Conductive Patterns on Cloth

A method for automated fabrication of flexible, electrically conductive patterns on cloth substrates has been demonstrated. Products developed using this method, or related prior methods, are instances of a technology known as "e-textiles," in which electrically conductive patterns are...

Briefs: Semiconductors & ICs

A split-block waveguide circuit that rotates polarization by 90° has been designed with WR-3 input and output waveguides, which are rectangular waveguides used for a nominal...

Briefs: Manufacturing & Prototyping

An economical room-temperature mechanical alloying process has been shown to be an effective means of making a homogeneous powder that can be hot-pressed to synthesize a thermoelectric...

Briefs: Manufacturing & Prototyping

A method of fabricating channels having widths of tens of nanometers in silicon substrates and burying the channels under overlying layers of dielectric materials has been...

Briefs: Manufacturing & Prototyping

A tool makes a cut perpendicular to the cylindrical axis of a core hole at a predetermined depth to free the core at that depth. The tool does not damage the surrounding material from which the core was cut, and it operates...

Briefs: Manufacturing & Prototyping

Arrays of nanowires having controlled dimensions can now be fabricated on substrates, optionally as integral parts of multilayer structures, by means of a cost-effective, high-yield process...

Briefs: Semiconductors & ICs

A system of electronic instrumentation, constituting the equivalent of a two-port vector network analyzer, has been developed for use in on-wafer measurement of key electrical...

Briefs: Manufacturing & Prototyping

Now more than ever, technological advancements drive the product design process.Increasingly powerful CAD programs allow more complex product designs, which in turn drive...

Briefs: Mechanical & Fluid Systems

The figure depicts an apparatus that pulverizes brittle material by means of a combination of ultrasonic and sonic vibration, hammering, and abrasion. The basic design of the apparatus...

Briefs: Electronics & Computers

A finned-ladder structure has been invented in an effort to improve the design of the slow-wave circuit of a traveling-wave tube (TWT). The point of departure for the design effort was a prototype...

Briefs: Physical Sciences

Figure 1 depicts some aspects of an apparatus and method for automated serial sectioning of a specimen of a solder, aluminum, or other relatively soft opaque material. The apparatus includes...

Briefs: Manufacturing & Prototyping
Preparation of Regular Specimens for Atom Probes

A method of preparation of specimens of non-electropolishable materials for analysis by atom probes is being developed as a superior alternative to a prior method. In comparison with the prior method, the present method involves less processing time. Also, whereas the prior method yields...

Briefs: Manufacturing & Prototyping

A curved tile of refractory silica-fiber-based or alumina-fiber-based thermal-insulation material can be formed from an initially flat billet in a process that includes pressing...

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