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It's officially spring, and our focus naturally turns to everything
that's new. This week, take a look at the 1930's technology behind blind rivets plus recent steps toward error-proof
assembly, learn a new step-by-step approach to solving fastening issues in hydraulic hoses, and see what
academia and industry are doing with atmospheric
plasma.
Don't forget to scroll down for new products and industry updates. And last but not least, mark your
calendars for Machine Design's Energy Efficiency Web Conference & Expo
May 14. Stay tuned for more details on this next month.
Jessica Shapiro
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Straight facts on blind rivets
Rivets have been used to put things together since the Bronze Age,
but it usually took a worker on each side of the join to set them. Then,
in the mid-1930s, engineers developed blind or breakstem rivets. They
let workers install fasteners from one side of a workpiece when the
opposite side is inaccessible or cannot even be seen.Blind rivets are
now used to assemble everything from small electronic components in cell
phones to steel beams in the world’s largest bridges.
Read the full article.
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BobTail.® Huck’s next-generation
lockbolt system
 The advanced
BobTail® lockbolt system from Huck offers quick, quiet, two-second
installation for maximum productivity, with the same vibration-resistant
reliability Huck is known for. Patented BobTail Swageforward®
tooling, exclusive to Huck, is lightweight and ergonomically designed
for ease of use. Available in a wide range of sizes and grades, BobTail
fasteners and tooling are precisely matched to the application, offering
lower installed costs and increased user safety for both assembly and
repair.
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Hose assemblies engineered to last
Hose assemblies simplify many issues when designing, building, and
maintaining hydraulic equipment. And as machine builders continue to
push the engineering envelope to meet customer demands for productivity,
efficiency, and environmental compatibility, so have the requirements
for hose integrity.
These include withstanding higher pressures, extreme heat and cold, and
a wide range of fluids — including today’s “green” variants. And
that’s not to mention the call for longer life despite abrasion,
impact, and generally rough operating conditions.
Read the full article.
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Cool plasmas heat up
Plasma, a mix of ionized gas molecules and free electrons, is often
referred to as the fourth state of matter, and it’s nothing new.
Welding arcs, fluorescent lights, and plasma televisions use it. But
plasmas can also prepare surfaces for bonding and kill bacteria on
delicate living tissues.
Surface-preparation plasmas can destroy organic matter on bonding
surfaces. Reactive oxygen species chemically activate surfaces to
prepare them for bonding. Plasmas can also enable the deposition of
polymerizable precursors to form nanometer-thickness coatings.
Read the full article.
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Compression latch
To obtain a 12-mm compression range, the 1-081SL compression latch
uses D-Snap Technology and Design Symmetry for simple installation
without hardware or tools. The latch’s components are preassembled
into sandwich-type panels for easy installation from the front of the
panel. Standard cam heights are 22 and 28 mm and, depending on cam
length, compression range can be modified. The use of a planetary gear
for actuation gives compression at extremely low torque, and a roller at
the end of the cam minimizes scrape damage to panels and reduces the
required closing force.
With Design Symmetry, the cam’s 180° rotation lets the same latch
install on right or left-hand doors. D-Snap Technology permits blind and
toolless assembly without screws or nuts and withstands vibration.
Dirak Inc.
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Crystal-clear adhesive
Clear Welder is a two-part structural-methacrylate adhesive that
produces a crystal-clear bond line on plastics including ABS, acrylics,
FRP, PETG, PMMA, and PVC. Little or no surface preparation is necessary,
and the adhesive will not discolor or craze when exposed to sunlight.
The adhesive, which comes in 380-ml coaxial cartridges, is mixed as
dispensed in a 10:1 ratio with a manual or pneumatic dispensing gun.
Clear Welder’s mixed viscosity of 22,000 cps makes it easy to apply,
and it is self-leveling. The adhesive’s working time is 4 to 6 min,
fixture time is 12 to 16 min, and functional cure occurs in 2 hr at room
temperature. When fully cured, the adhesive’s typical hardness is 82
Shore D, and it withstands –64 to 200°F.
ITW Devcon
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Liquid-adhesive dispensing guns
Two high-speed, rapid-cycling, electric liquid-adhesive dispensing
guns are said to boost efficiency and productivity while delivering
consistent, high-quality bonding. The LA 825 RC guns, with elongated
reduced-cavity nozzles, are for small adhesive quantities, intermittent
application, and high-line speeds found in folding-carton production.
Both applicators maintain consistent bead length regardless of line
speed. The applicators feature a 250-Hz continuous cycle rate, sharp
adhesive cutoff, clean operation, and improved stroke adjustment.
Nordson Corp.
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Energy Efficiency Web Conference & Expo –
May 14
Do you know you can get in-depth education on energy-efficiency and all
the benefits of an in-person trade show without ever leaving your desk
or spending a dime?
The intelligent use of energy is making headlines. Product designers and
manufacturers are striving to deliver products that consume less power,
extend battery life, generate less heat, or work from alternative energy
sources. Our Energy Efficiency Web Conference and Expo will
educate design engineers, product developers, and managers on how to
make the best use of energy-efficient product innovations and devices,
and on how to arrange them in systems to lower power consumption and
stay "green." This special one-day event will include sessions
on such areas as:
- Power-efficient drive techniques for lighting
- ROI for high-efficiency capital equipment
- Energy monitoring and energy standards
- Designing for SEMI S23 and the Energy Act of 2007
- Working with alternative power and battery technology
Make plans now to attend the Energy Efficiency Web Conference and Expo. The
event offers a full day of live webinars and interactive booths, along
with a Resource Center where visitors can download or link to additional
materials.
Register Now!
Machine Design Video Spotlight
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High-flex silicone
flat cable |
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A silicone injection molding process
developed by Cicoil Corp. embeds wires, coax, fiber optics, and even
piping into a single highly flexible flat cable for industrial
applications. |
Check Out the New Machinedesign.com
Our newly redesigned web site still features the best content and
information for engineers provided by engineers but with these new great
features.
Multiple Path Navigation
Find content your way. Improved site navigation creates multiple ways to
find the content you are looking for.
Supercharged Search
The search function has been highly improved and tested to provide the
most effective results for engineers.
Highlighted Resources
Looking for CAD drawings? Find them in our CAD Library.
Download whitepapers in the Whitepaper
Library. Valuable educational content is featured in the eBook
section. Check out the latest in editorial and sponsored video
in the Video
section.
UPCOMING WEBCASTS
Design Essentials for Plastic Gear Peformance
Sponsored by Thermotech
DATE: April 9th, 2009
TIME: 2:00pm ET/11am PT
Engineers are focused on creating cost effective, energy efficient
designs that offer performance and high value to the end customer.
Luckily, advancements in design, materials, manufacturing and inspection
have made it possible to meet product development goals and expand
plastic gear applications.
The webinar presents a unique approach to plastic gear development
including:
Critical gear design principles
Performance requirements to determine optimal materials
selection
Overview of tooling optimization technique
Metrology methods for plastic gears
Live question/answer session with presenters
Click here to register!
Efficiency in Fractional HP Motors & Gearmotors
Sponsored by Groschopp
DATE: April 16th, 2009
TIME: 2:00pm ET/11am PT
Efficiency is often one of the last factors that design engineers think
about when specifying for an OEM application, yet it is critical to a
successful, optimized design in many ways. Join Groschopp engineers Ron
Didier and Jared Birk for an overview of efficiency as it relates to
other design considerations such as power source, operating cost,
temperature, purchase cost and size.
Webcast attendees will receive an early release download of the new STPe
desktop design tool that allows engineers to calculate operating cost
based on speed, torque and power requirements and local kwh energy
costs.
Click here learn more and to register!
ARCHIVED WEBCASTS AVAILABLE FOR FREE VIEWING
Click
Here for a list of archived Machine Design webcasts.
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Atlantic Fasteners chosen as Lockheed Martin
STAR Supplier
Lockheed Martin-Electronic Systems has named Atlantic Fasteners,
West Springfield, Mass., a STAR Supplier. The STAR award recognizes
high-performing suppliers of Lockheed's Electronic Systems unit and
other business areas.
Atlantic Fasteners met quality, delivery, and other business
requirements set for at least 12 months. Companies are re-evaluated
annually.
For more information, visit Atlantic Fasteners
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Engineering Calculation Toolbar
Work through challenging conversions faster with a toolbar on your
desktop to handle unit conversions, material densities, and other
calculations. Learn more
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Editorial questions: Jessica Shapiro
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