Newbie Question about Motors

I am VERY new to the scrapping business and I have been looking over different posts and such but I am curious motors such as out of a dishwasher or dryers etc if it contains copper winding I should split the copper from the motor and do what with the other metal from the motor throw it in the pile of the corresponding metals? If it contains aluminum winding is it better to just sell it as an electric motor and not touch the windings? This maybe a newbie question but I am in need of information have about 20 some of motors with both copper and aluminum windings.

Thanks in advance,
Brock