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Heat treatment of wheels

Heat treatment of wheels

Heat treatment of wheels

(OP)
Hello!  Since there are so many questions on the process of creating wheels. I have question on the heat treatment of wheels.  May someone please describe (in detail please :D) the heat treatment process of aluminum or steel wheels (preferably both :D). Thanx.

P.S. I posted in another forum, I hope this doesn't annoy anyone.

RE: Heat treatment of wheels

WaLLy863,

Steel wheels are not heat treated subsequent to fabrication.  Current practice is to use a microalloy steel (HSLA-- high strength low alloy), which obtains its strength through a combination of small alloy additions (usually Nb, V, Ti and maybe Cu, Mo, & Cr, as well as N) and controlled thermomechanical processing (time, temperature, strain, etc. used during the sheet rolling process).

I am also including the reply that I originally posted in the Metal and Metallurgy forum:

Aluminum alloy wheels used in the automotive industry are generally castings produced in permanent molds.  The alloy used is 356 or A356 (Aluminum Association designation).  They are usually given a T6 heat treatment, which means that they are solution heat treated, then quenched, then artificially aged.  A typical heat treatment schedule would look like this:

Solution heat treat at 540 C for 4-12 hours
Quench into hot water: ~ 65-100 C
Artificial aging treatment is usually 155 C for 3-5 hours


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