March 01, 2016 Volume 12 Issue 09

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.


Suicide bomb-detecting device moves forward with Sandia engineer's help

On the chilling list of terrorist tactics, suicide bombing is at the top. Between 1981 and 2015, an estimated 5,000 such attacks occurred in more than 40 countries, killing about 50,000 people. The global rate grew from three a year in the 1980s to one a month in the 1990s to one a week from 2001 to 2003 to one a day from 2003 to 2015.

Terrorism experts say suicide bombings are pervasive because they generate publicity and require little expertise, resources, or planning. Perhaps most importantly, they are almost impossible to prevent.

Until now, said Albuquerque businessman Robby Roberson.

Wearing a mock suicide vest, Albuquerque businessman Robby Roberson stands in front of his company's CBD-1000 bomb detector, being adjusted by Sandia National Laboratories scientist JR Russell. Russell worked with R3 Technologies to iron out technical issues and bring the suicide bomb detector close to commercialization. [Photo by Randy Montoya]

 

 

 

 

Roberson's company R3 Technologies (Albuquerque, NM) and a group of other small businesses are developing a way to prevent suicide attacks by detecting concealed bombs before they go off. After a frustrating start, the group decided it needed more technical help and turned to the New Mexico Small Business Assistance (NMSBA) program, which pairs entrepreneurs with scientists and engineers at Sandia and Los Alamos national laboratories.

"The suicide bomber can walk into a crowded place unnoticed and inflict a horrifying amount of death and destruction," Roberson said. "It's very hard to stop. There was no technology to deal with it."

Roberson found a partner in Sandia sensor expert JR Russell, who has helped bring R3's Concealed Bomb Detector, or CBD-1000, close to commercialization over the past two years. "JR has been all over it and really turned things around for our company," Roberson said. "He brings in sharp people from Sandia. I love working with those guys."

Russell said his role largely has been to develop ways to measure how well the technology works. He zeroed in on the device's accuracy by analyzing false positives and pushed to redevelop software so it would more reliably detect a bomb threat. "After getting to know Robby and the team, I got more and more interested in the problem," said Russell, who enlisted Sandia engineers Matt Erdman and Michael Bratton in the project. "The technical part of me took over. Engineers want to validate the model, and we needed to validate the performance of Robby's system. We threw out a lot of the existing technology. Early versions were a good start, but not where the technology needed to be."

Screening for bombers in public places
The CBD-1000 uses X-band radar to detect metallic and nonmetallic explosives. Roberson said it can detect ball bearings, glass, nails, ceramics, rocks, and other materials frequently used as shrapnel in suicide vests.

The device is designed to detect bombs that current metal detector technology would miss and is intended for screening areas, such as airports, embassies, public and government buildings, border crossings, transportation hubs, and military compounds. It is portable and could also be used at large special events.

The CBD-1000 is the size of a cereal box, weighs about 13 lb, and is mounted on a tripod. It is electric or battery powered and works with proprietary embedded software. The device uses a spread-spectrum, stepped, continuous-wave radar to bounce a signal off a subject. The software analyzes both horizontal and vertical polarized signals to determine the presence of a potential threat. "If the person is not carrying a threat, the return signal is in the same polarity as when it was transmitted," Roberson said. "A threat will rotate the polarity of the signal, and it comes back differently."

The system sets up in about 15 minutes, and an operator, who does not need a working knowledge of radar, can be trained in 30 minutes. The scan takes about 1.3 seconds from 9 ft away. Roberson said the team is refining algorithms that will allow people in motion to be scanned at greater distances.

"We're working toward an instantaneous scan, so a person can be checked while moving through the beam field. And we hope to extend the range to 100 feet," Roberson said. "We want to take movement out of the equation. People who want to protect their citizens want to detect at a distance, keep the threat away. They want to scan crowds and stop threats before they get too close."

First system didn't work
The original technology was developed by another Albuquerque company in the early 2000s as a hand-held, radar-based sensor that police could use to scan people moving at a distance who they suspected might be armed. It evolved into a stationary system. After years of development, the technology just didn't work. "It became apparent that the system was not completely accurate," Roberson said.

Roberson and his father, Coda Roberson, founded R3 Technologies to further develop and commercialize the technology. They approached Sandia for help through the NMSBA and added partners including Manuel Rangel of APPI Inc. in Las Cruces, the acclaimed radar scientist Don McLemore of McLemore Enterprises LLC in Albuquerque, Lawrence Sher of Wind Mountain Research Associates in Albuquerque, and Julie Seton of Indelible Enterprises in Las Cruces.

"When JR came onboard, we all took a hard look at what we had, what it did, and how it worked," Roberson said. "JR came at this problem from a different point of view. He wanted to know everything about it. He helped us realize we had to go in a completely different direction. We reverse engineered the hardware and software. I can't stress enough how important JR was."

Russell said the Sandia employees studied noise surrounding the radar signal and how it impacted true positives and true negatives. They found a way to reduce noise and strengthen the signal, improving accuracy by minimizing false positives. "If the signal is bigger than the noise, it can scan people as they're walking. They don't have to stop," he said. "These breakthroughs will enable new applications in security of the future and will increase the marketability and desirability in the field of the CBD-1000."

Continuing the NMSBA collaboration
Roberson hopes to go to market this year after working with Sandia to further improve the machine's speed, distance, and accuracy. He said the CBD-1000 will cost about $50,000 and that several hundred units have been produced. The device is patented, and the company has received inquiries from Pakistan, Afghanistan, Singapore, Kuwait, Saudi Arabia, and Nigeria, he said.

Russell said he enjoys helping a small business. "It's good for our community," he said. "Helping someone succeed helps us succeed, too, as a lab. I get to see science though the eyes of business people. And I've learned things that will help me in my work."

Russell said R3's suicide bomb detector resonates with Sandia's national security mission. "We want to help our nation protect our people, our assets," he said. "If we can save one life, we can make a difference. The opportunity to make us safer from attacks is one of the idealistic things that drive us."

NMSBA was created in 2000 by the state legislature to bring national laboratory technology and expertise to small businesses in New Mexico, promoting economic development with an emphasis on rural areas.

Source: Sandia

Published March 2016

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