Though we don't get Hickory over here in England I would say the following. You don't need a draw knife. Any knife caan be used to debark. A 4 to 6 inch sharp blade can lever some barks off or can cut and scrape outer and then inner bark off. An axe or hatchet is not ideal as it is more likley to damage the outer surface, cut through growth rings etc.
You can make wooden wedges out in the woods, or make some to take with you. Get the split started on an end (the thicker end) with the hatchet and mallet, making sure the split goes exactly through the centre pith. Don't knock the hatchet in too far or too hard. As soon as you can get a wedge in there or there is a real danger of getting the hachet stuck.
Good wood hunting.