120
No problem
with EJOT
®
Beat the clock
Car body manufacturing has always placed
Time Sport International has recently requirements, giving each bicycle
exceptionally high requirements on joining
worked with Huntsman Advanced unparalleled performance for its rider.
technology. There is increasingly more hybrid
Materials to develop a unique high Each aerodynamic frame is available
construction where different materials such as steel
performance bike – the RXR. in four sizes, weighing just 1,300g in
and aluminium are used. This production method
makes markedly high demands on fasteners.
Time Sport, of Charancieu, France, is a total, and includes the latest state of the
EJOT says that its FDS® screw provides
composite sports bicycle frame and art Translink integrated seat tube.
process-sure fastening under complex working
accessories manufacturer. By using
The Araldite® system used to produce
conditions. The screw allows aluminium sheet metal
special multi-part assembly technology,
the carbon components is Araldite® LY
thicknesses of up to 4mm and steel sheet metal up to
based on high modulus carbon
564/Aradur® 22962 which can be cured
2mm to be fastened from one-side without the need
composite components, Time Sport says
at temperatures >100
o
C. This amine
of a pilot hole. the RXR can be built to the optimal
cured laminating system has very low
Also in the area of detachable connections, the design for individual customer
problems with process-safe assembley of thin
viscosity which makes it suitable for the
requirements.
pre-punched sheet metal, where the requirements
Each bicycle frame comprises three
latest injection moulding techniques
increase and the sheet metal thickness is reduced, is
component parts made in mould ‘shells’
used by Time Sport, such as Resin
solved by EJOT’s SHEETtracs
®
, which offer optimsed
using Araldite® epoxy system with
Transfer Moulding. It also has a long pot
thread geometry.
carbon fibre. This unique technology
life (up to 150 minutes at 23
o
C) and high
EJOT will be exhibiting at EuroBLECH Fair 2008 in
enables the mechanical features of each
reactivity, for example curing for 15
Hannover, Germany, in Hall 13, Stand C72.
shell to be modified according to specific minutes at 100
o
C.
Ultrasonic measurement ensures mechanical joint integrity
Although measurement of the torque applied to a bolt or other accomplished in fasteners of any metal from 1 inch to over 50 feet long.
threaded fastener during tightening provides sufficient feedback in Ultrasonic measurement is based on the time of flight principle. In use,
most applications, there are more specialised tasks where a small transducer placed against the head or stud end of the fastener
measurement of the fastener tension is essential to ensure the sends an ultrasonic sound wave through the length of the bolt. When
integrity of the mechanical joint. the echo signal returns, the microprocessor in the USM-3 converts the
To address this requirement, Norbar has introduced the USM-3 transit time to a precise length, using constants based on the bolt
ultrasonic bolt meter – a compact, lightweight, field-portable unit that material, and digital signal.
gives precise measurement of elongation and load in threaded The USM-3’s 1/4VGA backlit LCF display provides easy to interpret
fasteners. results of load, elongation data and waveform. Norbar’s exclusive five
Traditionally, ultrasonic measurement has been a highly skilled task, point DSP algorithms also provide an evaluation of signal quality.
requiring extensive knowledge of material properties to determine the The USM-3 can also provide a 0-10V analogue output to precisely
correct transducer diameter, the correct transducer frequency, and to shut off torque tools when a predetermined bolt stretch or load has
interpret the results. The USM-3 overcomes all of these challenges, and been attained. In addition, the onboard flash memory can store
gives the operator a highly accurate yet easy-to-use tool for determining measurements on up to 80 bolts, with up to five measurements of load
the tension in a fastener. Real time, precise bolt measurement can be and elongation for each bolt.
One Smalley step for man…
TFC says it has taken a giant leap for spring kind by announcing that one of its Smalley springs has been used in the latest Phoenix
Mars Lander mission.
TFC’s Smalley springs have been used within the protective back shell of the craft. TFC says that its springs were chosen due to their ability to
function in harsh environments and their ability to endure the rigors of the terrain.
Various TFC products have been used in a mixture of difficult environments, but this is the first time that they have been used on a mission in
space.
The 420 million mile mission launched from Cape Canaveral Air Force Station in Florida, US, on a Delta II rocket, and will determine whether
icy ground near the planet's North Pole could ever have supported life.
TFC’s technical director, Brian Goode commented “TFC’s Smalley Wave Springs are designed for use in the harshest of climates, on Earth or in
space. In this application, a Smalley Crest-to-Crest® wave spring is being used on the Mars Lander. Not only do wave springs reduce spring
height by up to 50%, they allow for a smaller, lighter assembly. Often vital components such as changing from traditional springs to Smalley’s
can result in substantial gains such as increased operating ratios, improved fuel consumption and being able to operate more efficiently in
demanding situations.”
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