APPLICATION TECHNOLOGY tesa®
ACXplus
bonding were found to be ineffective. As a result, Traffic Technology decided to search for a high performance double-sided tape solution that could effectively fasten and provide a long lasting, durable seal on the dissimilar substrates of the sign’s polycarbonate screen and powder coated aluminium frame. To ensure they delivered benefits in line with the 4 Ps – people,
T
products, processes, performance – that make up the tesacohesion™ philosophy, tesa’s customer team visited Traffic Technology and engaged with it in a thorough assessment of its requirements. Any proposed solution needed to provide a high strength bond on the dissimilar substrates in an outdoor environment. A watertight seal was also required to enable an IP65 rating on
New PEM® PEM® Type THFE™ Type THFE™
heavy-duty studs PennEngineering®
says that its new heavy-duty studs
clinch permanently into thin metal sheets to provide robust fastening solutions and practical alternatives to weld studs.
P EM® Type THFE™ heavy-duty studs feature an
enlarged head diameter that distributes axial tightening force over a wide area to reduce compressive stress on the host panel; improve
pull through performance; and develop full thread strength. In addition, a thicker head design serves to accommodate larger holes in attached panels. These studs install easily and quickly using any standard
press by inserting them into a properly sized mounting hole (punch side) and into the anvil hole and then applying sufficient squeezing force. This action embeds the ribs on the head of the stud into the host sheet and the fastener becomes a permanent part of the assembly. Type THFE self-clinching studs install reliably into steel or aluminium sheets as thin as 0.031 inches/0.8mm with hardness of HRB 85 or less on the Rockwell ‘B’ scale and HB 165 or less on the Hardness Brinell scale. Thread sizes range from 1
/4 – 20 through 5 /16 – 18 and M6 through M8.
Standard stud lengths are available up to 2 inches/50mm. Detailed specifications, CAD models, and performance
data (Bulletin THFE) for these RoHS-compliant studs can be accessed online.
raffic Technology Ltd is a UK supplier of advanced vehicle monitoring technologies, road safety equipment and services. During the design phase of an interactive cycle awareness sign, the options explored in conventional
When UK based vehicle monitoring technology provider Traffic Technology Ltd was looking to integrate new bonding methods into its manufacturing processes, it called on the tesacohesion™
helps promote safety for cyclists for help.
team at tesa®
the unit. As such, whilst a double-sided closed cell foam tape was originally requested by the customer, the tesa team recommended the tesa®
ACXplus 706x series of acrylic double-sided tapes, as a
more suitable alternative. tesa says that its ACXplus
double-sided tapes for constructive
bonding offer a very high bond that can last for decades on materials with different surface characteristics. Excellent stress dissipation properties allow substrates with different rates of thermal expansion and contraction to be reliably joined. The temperature, weather and chemical resistance make these tapes suitable for long-term outdoor applications, where materials can be bonded without damaging or changing them. As well as optimising the wetting of different surfaces, the
specially balanced viscous and elastic performance absorbs dynamic forces and vibrations to relieve stresses, leading to the creation of dimensionally stable and permanent bonds.
NORMA Group sponsors student
formula racing team NORMA Group has recently supported the Global Formula Racing team by providing push and seal connectors, as well as spring band hose clips in various sizes, for the new electric formula racing car GFR14e.
Student Germany (FSG) racing series. The team develops and constructs formula racing cars as part of an academic research project and participates in student racing events. The GFR14e hit the road recently during the FSG racing series at the Hockenheimring racing tracks. “We are excited that our high-quality and weight reducing
G
joining technology products are used in a project that is entirely about innovation and efficiency,” says Werner Deggim, CEO of NORMA Group. The NORMAQUICK PS3 quick connectors and the
NORMACLAMP (FBS) spring band clips are used in the dual cooling system of the racing car’s drive components. It consists of two electric motors and two inverters. “We used to connect the components with screwable hose clamps, however this proved increasingly problematic during servicing,” says Karl Klöss, a member of the Global Formula Racing e.V. Association. “The NORMAQUICK connectors make work on the cooling system quicker and more efficient. We will continue to use NORMA products going forward.”
www.normagroup.com
124 Fastener + Fixing Magazine • Issue 89 September 2014
lobal Formula Racing team is a student collaboration of the technical department of Duale Hochschule Baden-Württemberg Ravensburg and Oregon State University in the context of the Formula
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