Old 07-07-22, 12:59 PM
  #32  
Atlas Shrugged
Senior Member
 
Join Date: Mar 2010
Posts: 1,629
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1217 Post(s)
Liked 1,281 Times in 653 Posts
Originally Posted by Racing Dan
Thats fine, however bonding metals with different coefficient of thermal expansion is very much likely to produce warping in the presence of heat. The principle is used in a long variety of mechanical and electrical contraptions exactly for that reason. Shimano may be able to out engineer the effect, but reducing warping sure is a lot easier in a single piece brake disc.

https://en.wikipedia.org/wiki/Bimetallic_strip
Your internet sleuthing missed a key point, BiMetal does not have the corresponding material on the other side of this the warping. Given the design I would state that the trimetal design is actually more stable than a solid disk. Much like a sheet of plywood is more stable than a single plank.
Atlas Shrugged is offline