If you are crazy about technical stuff...
HERE IS HOW WE MANUFACTURE THE CENTERS OF 3 PIECE WHEELS :
Sorry this is in french, but at least, you can look at the images !
HERE IS HOW RIM HALVES ARE MADE :
The used method is called METAL SPINNING. The pieces are made out of aluminium or stainless steel discs.
The disk is first cut to the right diameter and then bent on the mold progressively..
The material is bent slowly, in order to guarantee the quality of the final product.
At the end of the spinning process, a small machining enables us to have a perfectly round piece.
And if you are really nosy, don't hesitate to call us, we will be happy to inform you !
By phone +33 385 57 75 88 or by email at firstname.lastname@example.org