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in a matter of hours.
The press was installed in late 2008 at DEMA’s Somma Vesuviana (NA) facility
and is now in full operation.
"With the new Flexform press, we can now form larger and more complex parts
than with the rubber pad press", said Agostino Marino, General Manager of
DEMA SpA. "This has significantly expanded the capabilities we can offer our
customers, and at the same time has lowered our production and maintenance
costs. We were quite pleased with the excellent support provided by the Avure
project management team throughout the build and install process".
Flexform presses employ a relatively simple operating principle. Unlike
mechanical and hydraulic presses which use upper and lower forming dies,
(often in three pieces), Flexforming uses a single, rigid, shape-defining tool half
(also known as a hydroblock or die). A sheet metal blank is placed over this tool
and is pressed into shape by a flexible rubber diaphragm under uniform
hydrostatic pressures as high as 80 MPa (11,600 psi), an equivalent pressing
force of up to 215 MN. Multiple tools and blanks are placed freely in large forming
trays at each end of the press which shuttle in and out of the central frame
containing the pressurized diaphragm. Multiple part sizes, shapes and gauges
can be formed in a single one- to three-minute cycle.
About Avure Technologies, Inc.: Avure Technologies specializes in the design,
manufacturing, installation, and global support of high pressure presses for
densification of advanced materials and critical industrial parts, forming of sheet
metal components, and high pressure pasteurization to keep food pathogen-free
and fresh longer. With over 50 years of experience, the company has installed
and serviced more than 1,700 systems in 43 countries. For more information,
visit www.avure.com, or contact Glenn Hewson, Vice President of Global
Marketing, at glenn.hewson@avure.com.
The newsletter from the British Society for Strain Measurement • February 2009 Issue 6
Dimensions • February 2009 • 1
Code of Practice - for the installation of
Electrical Resistance Strain Gauges
A new, 2009 edition of the Code of Practice for Strain Gauge Installation
has been produced following an extensive review of the original 1992
document. The very latest procedures have been included following
consultation with the most experienced practitioners in the field.
The characteristics and performance of electrical resistance strain
gauges are covered by several standards, none of which has universal
international recognition. These include BS 6888 (UK), NAS 942 (USA),
VDI/VDE 2635 and OIML recommendation Number 62. However, none of the
standards describe methods of installation. Most advice was provided by manufacturers and
suppliers and this inevitably reflected commercial interests. The new Code of Practice
describes the best practice for the installation of electrical resistance strain gauges.
Strain gauges are usually installed as sensing elements in transducers, or for the
purpose of acquiring strain data for stress analysis. As many such measurements are safety
critical, the British Society for Strain Measurement believes a universally accepted Code of
Practice for the installation of strain gauges is of great benefit to users.
Please note that the Code of Practice is not intended as an instruction manual and does
not provide all of the information necessary to complete the installation of a strain gauge.
Also, the code does not purport to address all of the safety regulations associated with its
use. It is the responsibility of the user to establish local Health and Safety requirements prior
to the strain gauge installation.
The Code of Practice is available to BSSM members at the substantially reduced rate of
£30 (normal price £80). Please contact bianagale@bssm.org
YSA organiser Dr Jimmy Evans
The Young Stress Analyst competition has been
running for over two decades. Its success is
directly related to the enthusiasm of the young
researchers at the forefront of experimental
mechanics. The competition is designed to
provide recognition of these researchers at a
key stage in their career.
I am writing this piece as a previous
winner of the event. In 2005 I was selected as
a finalist for the event that formed part of the
BSSM’s 4th International Conference on
Advances in Experimental Mechanics, held at
the University of Southampton. I spent many
hours carefully rehearsing my presentation,
before the fateful moment came to present in
front of a packed auditorium. I can remember
being nervous, but also feeling a sense of pride
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