morse cone removal

[lodola235]

thanks for your answer, Olderdan,
I wished that was my problem, but it isn't I've got the thing for free from an friend

so i have the morse cone 3 taper out of the drill machine, and on the slightly bend cone is an good quality drill chuck (I don't know the exact english word) where you tighten your drill in, it is an keyless head, and I would like to mount an new straight cone in in order to drill wel centered instead of an swinging drill
so in order to remove the head i puted the thing in the freezer, and then took it out, and warmed the drillhead with my warm air gun to let it expand, bur no succes, then I grinded two flat sides on each side and put wigs in to have more force, and taped on the cone with an hammer in order to shock it but still no succes,

now i wil weld an nut on the end side of the morse taper, and with the bearing extractor tool sliding on the bar an try to knock it out that way,

but maybe there is an magical trick to do this right ?