FASTENERS & SEALING
variations in the shape of the bonded components, ensuring a secure sealing bond even over long splices and large components. In service, the viscoelastic
properties of the acrylic foam allow tesa ACXplus tapes to accommodate movement due to differential thermal expansion. This helps maintain joint integrity during rapid temperature changes, even when the bonded components are different materials with different expansion characteristics. In addition, the foam layer provides excellent vibration absorption. This reduces sound transmission and helps protect components from the long-term effects of continuous vibration.
ON THE TRAIL A leading manufacturer of heavy goods vehicle (HGV) trailers has adopted tesa ACXplus in various widths and formats to improve product durability, appearance and manufacturing productivity. The company is using 19mm and 12mm-wide tesa ACXplus 7812 tape to fasten load securing tracks to the inside walls of its trailers, for example. The tapes replace multiple screws that were previously required to hold the tracks in place. The
The tesa ACXplus product group of adhesive tapes
change has accelerated production, eliminating a fiddly and time- consuming task for operatives. Elsewhere across its product
range, the company has introduced tesa ACXplus in place of screws and rivets to secure roof panels, interior kick plates and the exterior aluminium profiles for body reinforcement and protection.
QUIET IMPROVEMENTS Productivity improvements were also top of mind for a leading global supplier of engineered noise control products when it approached tesa to find a solution to a tricky
A leading HGV trailer manufacturer has adopted tesa ACXplus
manufacturing problem in its range of soundproof doors. Stiffeners, used to provide rigidity to the product, were traditionally spot welded to the inside of the panels and doors. However, this method left surface marks that required extensive sanding and finishing to remove. The quality of the paint around the spot-welded areas was often below standard, resulting in rework and additional costs. Working with tesa’s application
engineering team, the company undertook a test programme to evaluate the use of 19mm tesa ACXplus 7074 in place of spot welding. The programme involved extensive testing on mock panels and doors of various lengths, thicknesses and widths of reinforcement. The performance of ACXplus was tested on original substrates under a wide range of temperature, weather conditions and mechanical impacts. These tests showed that tape offered strong and safe performance, while the reduction in the number of production steps required now saves the company more than 50 hours of manufacturing labour per month. Permanent adhesives tapes offer an
attractive solution to current assembly challenges. Rather than waiting for problems to arise, designers should specify a robust, reliable and efficient alternative at the design stage of their next project.
Semjon Schluger is regional market manager at tesa.
www.tesa.com
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www.engineerlive.com
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