Rotors siezed to hub, chevy cavalier?

I hammered for 4 hours to no avail. I have hammered it everywhere, in between the studs, the outside of the inner edge of the rotors, the outer edge of the rotors and from behind also. I have tried wd-40 and rust remover. I started with rubber mallet and then worked up to a 4lb sledge and I banged this son of a bit*h and still nothing has worked. I will not torch it. Also, there is no threaded holes for me to put bolts in to loosen it that way. Any help or tips would be great. I don't have a 3 way puller.