Those who are not angry at the things they should be angry at are thought to be fools, and so are those who are not angry in the right way, at the right time, or with the right persons.
Understanding transforms, it does not sublimate. If you understand, anger disappears and the same energy becomes compassion. Not that you sublimate: anger simply disappears, and the energy that was involved, invested in anger, is released and becomes compassion. When you understand hate, hate disappears and the same energy becomes love. Love is not against hate -- it is absence of hate.
If you strike a child, take care that you strike it in anger, even at the risk of maiming it for life. A blow in cold blood neither can nor should be forgiven.
One cannot completely get rid of the six passions: lust, anger, greed, and the like. Therefore one should direct them to God. If you must have desire and greed, then you should desire love of God and be greedy to attain Him.