The new mill is equipped with a solid state high frequency welder (Thermatool, UK) for high frequency solid state induction welding, seam annealing and on-line inner bead
Rays wheels were modified to add serrations on the inner bead
to keep the wheel from spinning inside the tire, and the spokes were strengthened to prevent them from twisting under hard cornering as they had while testing at Germany's Nurburgring.
No wave reflections are generated except those reflected from an air-plastic interface at the inner bead
This is relatively simple for the outer weld bead, but troublesome and time-consuming for the inner bead