Building Taxis with Adhesives
Apparently, this is the case for the LEVC black cabs, the new aluminum-intensive hybrid vehicles that were launched earlier this year. (See: adandp.media/articles/the-london-cab-where-tradition-intersects-with-contemporaneity)
According to Christophe Van Herreweghe, Marketing Manager, Adhesives, Dow Automotive Systems, “Dow’s high-performance solutions contributed to achieving a lightweight bonded extruded aluminum monocoque body-in-white and also eliminated the need for mechanical fasteners. The result is a fully bonded body structure that is stronger and significantly lighter than an equivalent steel construction. In addition to increased safety for the occupants, the weight savings can also contribute to greater autonomy when in electric mode.”
Dow estimates the overall weight save compared to a conventionally built vehicle is on the order of 30 percent.
The number of Dow products used to build the TX5 is rather extensive, including Betamate structure adhesives, Betaforce composite bonding adhesives, Betaseal glass bonding systems, Betaprimer primers, Betawipe cleaners and Betafill sealers.
The taxis, which have a battery-only range of up to 80 miles and a 1.5-liter gasoline engine that is used when the electricity is used up (the total range for a fully charged/fueled vehicle is up to 377 miles), is built in a new £325-million factory outside Coventry.
If aluminum-intensive cars are ever to become more than an occasional curiosity, automakers may have to give up their weld shops.
While aluminum vs. steel is getting more contentious in the world of light-duty trucks, when it comes to creating structures, the heavy-duty truck people know something important about strength and mass.
Yes, the 8th generation Corvette is red-hot