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In this issue of Fastening & Joining there are articles on new
connectors for drums, the top ten innovative products, and designing for
reliability.
The highlighted products are optical-fiber connectors, parallel
grippers, and polymides that take the heat.
Be sure to check out the Industry Update to find out about upcoming
seminars on fastening.
Linear Motion Components Survey
We need your input. Simply complete our brief survey
and you can WIN a $500 American Express gift card.
Thanks for reading and have a fabulous day!
-- Julie Kalista
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Sound Good? The Secret's in the
Connectors
Developers at drum maker Head Drums in Lakewood, Colo., devised a
new attachment method after analyzing how drum heads are typically
attached to shells. The thinking among drum designers had been that the
relatively small mass of metal attachments would not affect the
instrument's overall sound. However, experiments revealed otherwise.
Typical tie-down hardware stiffens wooden drum shells and raises the
drum's pitch. This hardware is usually tube-lug anchors that also
tension the drum head. Threaded inserts on either end of the anchor let
a tension rod (screw) pull on a steel hoop pressing on the head. Tension
around the head is distributed through a channel-shaped collar into
which the head is epoxied.
Full Article
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FLARE-IN ACCESS HARDWARE (Bulletin
PF11MF)
 PEM®
threaded flare-in access hardware introduces a captive screw assembly
for permanent installation into most any panel hardness or material. The
panel fasteners install flush on the back side of a panel using minimal
squeezing force with punch and anvil to flare their retainer. A
shoulder on the retainer provides a positive stop to promote easier
installation and improved performance.They are ideally suited for close
centerline-to-edge applications and will not mar painted
surfaces.
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Top 10 Innovative Products
Technology experts at Battelle explore emerging areas of science,
develop and commercialize technology, and manage laboratories for
customers. They periodically forecast what products will have the
greatest impact on life and in the office in years to come. Examples
include the flat-screen TVs that hang from the wall, devices to track
where our children are, and instant medical reports at home. Originally
forecast in 1995, the experts say these will be the most successful
technology-based products developed by 2009.
Full Article
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Adhesive Has Exceptionally High Thermal
Conductivity
 Master Bond
EP21AN is a two
part epoxy resin system with a thermal conductivity in excess of
22Btu•inch/ft2•hr•°F.
It is an outstanding electrical insulator with a dielectric strength
of >400 volts/mil and a volume resistivity greater than 1013
ohm cm. This easy to use adhesive
has been formulated with a non-critical one to one mix ratio by
weight or volume.
It cures readily at ambient temperatures. Its coefficient of thermal
expansion is a desirable
18-20 x 10-6
in/in/°C.
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Joining Design and Assembly: Designing for
Reliability
Though the uncertainties involved make exact predictions impossible,
designers can solve many problems based on past experience, trial and
error, tests, and the like.
Much experience is accumulated in design rules or recommendations, such
as the rules for bolted joint design in the ASME Boiler and Pressure
Vessel Code. Many industries and companies have similar guidelines.
Where such rules do not apply, designers must create their own, building
on experience with the product as it is manufactured and used. It helps
to document decisions and discoveries. If early assemblies fail, careful
records of assembly practices can produce better results. Likewise,
information about failures and customer problems can evaluate a design
more accurately than simple experiments or tests.
Full Article
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Optical-Fiber Connectors
FiberExpress Secure/Keyed LC now includes
preterminated MPO-keyed LC fiber and keystone modules. These components
meet stringent network security requirements, according to the company.
Networking equipment runs applications at 1 Gigabyte/sec and over.
Different divisions in a company or different tenants can be physically
segregated and different levels of security can be assigned to
individuals. The line includes FiberExpress LC duplex adapter modules in
MDVO and keystone styles, LC patch cords and pigtails, LC adapter
strips, LC FiberExpress manager modules and LC optimax connectors. They
are available in 12 colors. The components are tamper resistant. All
modules are keyed on the front and back to prevent installation errors
and security breaches. All components exceed industry standards for SFF
connectors and comply with the Focis 10 standard.
More Information
Belden
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Find an Easier Path to Electronic Latch
and Lock
Convenience and Security
 Send for
Southco's FREE Solutions Guide and discover how to upgrade from
mechanical latches and locks to the convenience of electronic access,
without altering enclosure designs. This designer's guide shows how
electromechanical latches, electronic locks and switch locks offer easy
implementation with exceptional flexibility. Plus offer secure
convenient access using a variety of electronic input devices -- key
fobs, smart-cards, bio-metric readers and more.
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Parallel Gripper
The JGP parallel gripper, available in Sizes 64 to
160, is for use in clean to slightly dirty environments and where space
is limited. The gripper's oval pistons, wedge-hook kinematics, and
T-slot guidance let the grippers hit 56.2 to 537.3-lbf gripping forces
at 0.6 to 7.3 lb. Stroke ranges are 0.24 to 0.63 in./finger. Recommended
workpiece weights are 2.8 to 18.1 lb in standard cases. Available
accessories include pressure-maintenance valves, finger blanks,
fittings, and quick-change jaw system.
More Information
Schunk Inc.
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Polyamide 46 Takes the
Heat
Stanyl Diablo OCD2100, a polyamide 46 (PA46),
withstands temperatures above 230°C for 3,000 hr. It has low creep
and is a candidate for under-the-hood (UTB) equipment. The material can
replace metal and reportedly outperforms other resins (PPS, PPA, and
PEI) on weldability, weld strength, and the weld's long-term heat
stability.
More Information:
DSM Engineering Plastics
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Introducing Engineering TV, an innovative online video
program by engineers for engineers. Twice a week, each 5-8 minute
episode shows cutting-edge technology in
action and looks behind the scenes as today's engineers shape tomorrow's
breakthroughs. Brought to you by the Penton Media Design and Electronics
Engineering groups.
View
Videos
Rev up your interdisciplinary design skills
What happens when a microcontroller turns on a power FET, sending a
current pulse to a motor coil that develops a magnetic field which turns
the rotor shaft, advancing a timing belt that drives a pair of nip rolls
suspended on bearings in a web-processing operation on a form, fill, and
seal machine installed on a potato chip line at a Frito Lay plant in
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And will the signals get through the networks fast enough, without being
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intended? It's a lot to think about, and it only scratches the surface
of what many engineers grapple with today. If you happen to be one of
them, then the place for you — where you can find answers and meet
others with similar concerns — is www.Mechatronic-Design.com.
Backed by some of engineering's top information sources including
Machine Design, Electronic Design, Motion System Design, and Power
Electronics, Mechatronic-Design.com is the interdisciplinary engineer's
desktop, toolbox, library, and lifeline in one easily accessible
place.
Find. Learn. Apply.
Mechatronic-Design.com.
Experience National Instruments Technologies From
the Comfort of Your Own Computer!
 With more
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tutorials and demos available for users of any experience level, it is
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Begin your search here with a collection of
webcasts specifically chosen for design and automation engineers.
CAD Library offers advanced CAD Resources
The Machine Design CAD
Library, includes millions of configurable 2D and 3D CAD models
of
components and assemblies downloadable for easy use in new and existing
designs. Our models are in native CAD formats. No translation
required!
Linear Motion Components Survey
We need your input. Simply complete our brief survey
and you can WIN a $500 American Express gift card.
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Sponsored
by:
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UPCOMING IN-PERSON EVENTS
Design-2-Part Shows are America's longest running and most trusted
events for sourcing custom parts and services.
Ten shows covering the country offer OEMs, engineers and purchasing
personnel the opportunity to meet job shops and
contract manufacturers face-to-face.
Linear Analysis Training Class
February 11-15, 2008
Students will be shown demonstrations of how to set up, analyze, and
investigate typical structures. Workshops let students put this new
knowledge into practice. The important features of the FEMAP GUI are
introduced and, at the same time the essentials of Nastran are explored.
Emphasis during the class is on the construction of proper analysis
models, and the effective use of the various solution types. Additional
troubleshooting techniques are discussed, as well as the various types
of common error messages generated by NEiNastran. The objective of this
class is to give a solid grounding in FEA basics and good practice to
enable the student to carry out real world linear static analysis.
UPCOMING WEBCASTS
Customization for the Competitive
Edge
Sponsored by PTC
DATE: March 5th, 2008
TIME: 2:00pm ET
As customers shun the "take it or leave it" mentality of mass production
in favor of customized product development, industrial manufacturers
respond by offering more and more product options and variants.
Launching a product that can be configured to customer needs may add a
competitive edge and improve customer satisfaction, but it can also lead
to lower profits, increased costs, and strained engineering resources.
For many manufacturers, the solution is modular product design. This
webinar reviews the benefits of modular design - both for your customer
and your internal organization. We also walk the viewer through
important organizational challenges of implementing modular product
architecture, which should be considered when deciding whether or not it
is the solution for you.
Click here to register!
Two-Shot Silicon and Thermoplastic Molding:
The Innovative Cost Saving Solution for Medical OEM's
Sponsored by Saint-Gobain
DATE: April 2nd, 2008
TIME: 2:00pm ET/11am PT
Medical device designers are facing intense pressure to create
innovative designs and maintain the highest quality over a product's
lifecycle while also being forced to design for lower cost
manufacturing. This is a challenge we recognize, but one that can be
overcome by leveraging the cost savings and benefits of two-shot molding
technology. Saint-Gobain's engineering team will present on two-shot
molding, how this process innovation can provide cost savings, increased
design freedom, and provide the quality and performance you demand.
Click here to register!
ARCHIVED WEBCASTS AVAILABLE FOR FREE VIEWING
Click Here for a list of archived Machine Design
webcasts.
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2008 Seminars for Fastening
Sensor Products Inc. is sponsoring both
seminars. The fastening technology and bolted joint design seminar was
developed to give engineers and technicians up-to-date specifications
and a better understanding of the complexity of mechanical joining with
fasteners. It incorporates the most recent techniques and guidelines
from both international and domestic engineering societies and research
groups. Topics include the bolted/screwed joint, elastic interactions
and preload stress, review of proper tightening methods, selecting
optimal fasteners for design, evaluating dissimilar materials for
thermal expansion, and gaining insights into materials, threads and
product standards. The bolted joint design seminar focuses on best
practices and selecting the proper technologies for each unique mold.
Critical areas addressed include the molding cycle, mold
classifications, the cavity and core, runner and runnerless molding
systems, plastic part analysis, mold materials and cost factors.
2008 Fastening Technology and Bolted Joint Design
Seminar
2008 Fundamentals of Injection Mold Design
Seminar
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When it comes to components, we own precision.
Vlier components are high quality, low cost and in stock. Our
High-Value Leveling Devices are Stud and Socket styles, Zinc/Gold
Chromate and Stainless and Nickel options. Vlier-Lock Ball Lock
Pins have T- and Button-handle configurations. For a complete
catalog contact us at Vlier.com, or call 1-800-821-1090.
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Contact Information
Editorial questions: Julie Kalista
216-931-9458
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216-931-9893
Machine Design
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