February 09, 2016 Volume 12 Issue 06

Mechanical News & Products

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hyperMILL 2024 CAD/CAM software suite

OPEN MIND Technologies has introduced its latest hyperMILL 2024 CAD/CAM software suite, which includes a range of powerful enhancements to its core toolpath capabilities, as well as new functionality for increased NC programming efficiency in applications ranging from 2.5D machining to 5-axis milling. New and enhanced capabilities include: Optimized Deep Hole Drilling, a new algorithm for 3- and 5-axis Rest Machining, an enhanced path layout for the 3D Plane Machining cycle, better error detection, and much more.
Learn more.


One-part epoxy changes from red to clear under UV

Master Bond UV15RCL is a low-viscosity, cationic-type UV-curing system with a special color-changing feature. The red material changes to clear once exposed to UV light, indicating that there is UV light access across the adhesive material. Although this change in color from red to clear does not indicate a full cure, it does confirm that the UV light has reached the polymer. This epoxy is an excellent electrical insulator. UV15RCL adheres well to metals, glass, ceramics, and many plastics, including acrylics and polycarbonates.
Learn more.


SPIROL Press-N-Lok™ Pin for plastic housings

The Press-N-Lok™ Pin was designed to permanently retain two plastic components to each other. As the pin is inserted, the plastic backfills into the area around the two opposing barbs, resulting in maximum retention. Assembly time is quicker, and it requires lower assembly equipment costs compared to screws and adhesives -- just Press-N-Lok™!
Learn more about the new Press-N-Lok™ Pin.


Why hybrid bearings are becoming the new industry standard

A combination of steel outer and inner rings with ceramic balls or rollers is giving hybrid bearings unique properties, making them suitable for use in a wide range of modern applications. SKF hybrid bearings make use of silicon nitride (twice as hard as bearing steel) rolling elements and are available as ball bearings, cylindrical roller bearings, and in custom designs. From electric erosion prevention to friction reduction and extended maintenance intervals, learn all about next-gen hybrid bearings.
Read the SKF technical article.


3M and Ansys train engineers on simulating adhesives

Ansys and 3M have created an advanced simulation training program enabling engineers to enhance the design and sustainability of their products when using tapes and adhesives as part of the design. Simulation enables engineers to validate engineering decisions when analyzing advanced polymeric materials -- especially when bonding components made of different materials. Understand the behavior of adhesives under real-world conditions for accurate modeling and design.
Read this informative Ansys blog.


New FATH T-slotted rail components in black from AutomationDirect

Automation-Direct has added a wide assortment of black-colored FATH T-slotted hardware components to match their SureFrame black anodized T-slotted rails, including: cube connectors (2D and 3D) and angle connectors, joining plates of many types, brackets, and pivot joints. Also included are foot consoles, linear bearings in silver and black, cam lever brakes, and L-handle brakes. FATH T-slotted hardware components are easy to install, allow for numerous T-slotted structure configurations, and have a 1-year warranty against defects.
Learn more.


Weird stuff: Moon dust simulant for 3D printing

Crafted from a lunar regolith simulant, Basalt Moon Dust Filamet™ (not a typo) available from The Virtual Foundry closely mirrors the makeup of lunar regolith found in mare regions of the Moon. It enables users with standard fused filament fabrication (FFF) 3D printers to print with unparalleled realism. Try out your ideas before you go for that big space contract, or help your kid get an A on that special science project.
Learn more.


Break the mold with custom injection molding by Rogan

With 90 years of industry experience, Rogan Corporation possesses the expertise to deliver custom injection molding solutions that set businesses apart. As a low-cost, high-volume solution, injection molding is the most widely used plastics manufacturing process. Rogan processes include single-shot, two-shot, overmolding, and assembly. Elevate your parts with secondary operations: drilling and tapping, hot stamping, special finishes, punch press, gluing, painting, and more.
Learn more.


World's first current-carrying fastening technology

PEM® eConnect™ current-carrying pins from Penn-Engineering provide superior electrical connections in applications that demand high performance from internal components, such as automotive electronics. This first-to-market tech provides repeatable, consistent electrical joints and superior installation unmatched by traditional fastening methods. Features include quick and secure automated installation, no hot spots or poor conductivity, and captivation options that include self-clinching and broaching styles.
Learn more about eConnect pins.


New interactive digital catalog from EXAIR

EXAIR's latest catalog offers readers an incredible source of innovative solutions for common industrial problems like conveying, cooling, cleaning, blowoff, drying, coating, and static buildup. This fully digital and interactive version of Catalog 35 is designed for easy browsing and added accessibility. Customers can view, download, print, and save either the full catalog or specific pages and sections. EXAIR products are designed to conserve compressed air and increase personnel safety in the process. Loaded with useful information.
Check out EXAIR's online catalog.


5 cost-saving design tips for CNC machining

Make sure your parts meet expectations the first time around. Xometry's director of application engineering, Greg Paulsen, presents five expert tips for cutting costs when designing custom CNC machined parts. This video covers corners and radii, designing for deep pockets, thread depths, thin walls, and more. Always excellent info from Paulsen at Xometry.
View the video.


What can you secure with a retaining ring? 20 examples

From the watch dial on your wrist to a wind turbine, no application is too small or too big for a Smalley retaining ring to secure. Light to heavy-duty loads? Carbon steel to exotic materials? No problem. See how retaining rings are used in slip clutches, bike locks, hip replacements, and even the Louvre Pyramid.
See the Smalley design applications.


Load fasteners with integrated RFID

A crane, rope, or chain may be required when something needs lifting -- plus anchoring points on the load. JW Winco offers a wide range of solutions to fasten the load securely, including: lifting eye bolts and rings (with or without rotation), eye rings with ball bearings, threaded lifting pins, shackles, lifting points for welding, and more. Some, such as the GN 581 Safety Swivel Lifting Eye Bolts, even have integrated RFID tags to clearly identify specific lifting points during wear and safety inspections and manage them digitally and without system interruption.
Learn more.


Couplings solve misalignments more precisely with targeted center designs

ALS Couplings from Miki Pulley feature a simplistic, three-piece construction and are available in three different types for more precisely handling parallel, angular, or axial misalignment applications. The key feature of this coupling design is its center element. Each of the three models has a center member that has a unique and durable material and shape. Also called a "spider," the center is designed to address and resolve the type of misalignment targeted. Ideal for unidirectional continuous movement or rapid bidirectional motion.
Learn more.


What is 3D-MID? Molded parts with integrated electronics from HARTING

3D-MID (three-dimensional mechatronic integrated devices) technology combines electronic and mechanical functionalities into a single, 3D component. It replaces the traditional printed circuit board and opens up many new opportunities. It takes injection-molded parts and uses laser-direct structuring to etch areas of conductor structures, which are filled with a copper plating process to create very precise electronic circuits. HARTING, the technology's developer, says it's "Like a PCB, but 3D." Tons of possibilities.
View the video.


NASA tests propellant-free solar sail deployment for asteroid-surveying CubeSat

Progress continues on the journey to Mars as NASA plans to send astronauts deeper into space than ever before, including to an asteroid and ultimately to the surface of Mars. Before humans embark on the journey, the agency will survey an asteroid to learn about the risks and challenges asteroids may pose to future human explorers.

One way NASA will do this is by performing a reconnaissance flyby of an asteroid with Near-Earth Asteroid Scout, or NEA Scout. NEA Scout -- a CubeSat, or small satellite -- will launch as a secondary payload on the inaugural flight of NASA's Space Launch System (SLS), the world's most powerful rocket, scheduled to launch in 2018. Information gained from NEA Scout's flyby will enhance the agency's understanding of asteroids and their environments and will help reduce risk for future exploration of asteroids and small planetary bodies.

NEA Scout's second mission objective will be to develop and verify a low-cost reconnaissance platform capable of carrying a wide range of research spacecraft to many destinations. To do this, NEA Scout will utilize a solar sail, harnessing solar pressure to propel the spacecraft.

NEA Scout's solar sail will be larger and travel farther than any sail NASA has ever deployed in space. "As a propulsion system that doesn't require any propellant, solar sails have a lot of potential," said Les Johnson, NEA Scout's solar sail principal investigator. "In the future, solar sails can take spacecraft to the outermost regions of the solar system faster than ever before."

Solar sail propulsion technology bounces a stream of solar energy particles called photons off giant, reflective sails made of lightweight material 40 to 100 times thinner than a piece of writing paper. The continuous pressure provides sufficient thrust to perform maneuvers, such as hovering at a point in space and rotating the space vehicle's plane of orbit, which would require too much propellant for conventional rocket systems. Because the Sun provides the necessary propulsive energy, solar sails also require no onboard propellant, thus reducing payload mass.

NEA Scout's flight solar sail will be 86 sq m, approximately the length of a full-size school bus. Engineers at NASA's Marshall Space Flight Center in Huntsville, AL, recently conducted a series of tests with a sail roughly half that size (36 sq m) to verify the folding and deployment of the sail in deep space.

"We were able to zero in some specifics of design, motor size, hardware attrition, and even the time required to fold and deploy the sail," said Tiffany Russell Lockett, NEA Scout Sail systems engineer. Next spring, the team will build and test a full-size engineering development unit.

Only one-third of NEA Scout's total size can be dedicated to the solar sail. Each of the 13 CubeSats hitching a ride on the SLS will be the size of a large shoebox and weigh less than 30 lb. For the school bus-size sail to fit within the small space requirements, it will have to be meticulously folded and then unpacked in space. To test the folding and deployment process, engineers built a low-cost test article using parts left over from previous programs.

"We were fortunate to have parts so readily available to test these new techniques," said NEA Scout Project Manager Leslie McNutt. "It's a fabulous opportunity for us to learn more before building our engineering development unit."

The lightweight assembly consists of three 3D-printed spools: an oblong spool that contains the sail's material and two smaller spools, each containing two booms, or the sail's arms. The booms -- which will unfold the sail and hold it in place during flight -- are strong, yet flexible.

"The booms are much like a handyman's metal tape measure. They are very strong when held out straight, and when bent they become flexible enough to be wound around the spools -- saving space," said McNutt.

The sail's material, a strong plastic with aluminum coating, is as thin as a human hair and has to be meticulously folded and wrapped around the oblong spool. Once in space, the booms -- each attached to a different corner of the sail -- will extend, unpacking the solar sail.

"We successfully tested a new folding technique that has never been used before with solar sails," said McNutt. "The sail material is folded like an accordion and unreels like a bow tie as the booms deploy."

To simulate a microgravity environment similar to that in space, the team used Marshall's Flat Floor Facility -- the world's flattest floor. "We connected air bearings to the ends of the booms," said McNutt. "That allowed the booms to float on a thin layer of air above the floor, offsetting the effects of Earth's gravity."

McNutt believes solar sails like NEA Scout's could be a game changer in the future of deep-space missions. "In the past, they have been relatively small," she said. "Advances like NEA Scout's sail could enable larger and larger spacecraft. The larger the spacecraft, the larger the solar sail will need to be. You have to work your way up -- this is a step in the direction of bigger and better."

NASA's Advanced Exploration Systems (AES) manages NEA Scout with the team led at Marshall Space Flight Center with support from the Jet Propulsion Laboratory in Pasadena, CA.

Source: NASA

Published February 2016

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