Using tongs will not only be much easier & faster, but it's also much safer. Last thing you want to do is to have to dodge a glowing piece of steel flying thru the air because you didn't have a good grasp on it. Google "dempsey twist tongs" which is the method I've used or search for "Ken's Custom Iron Quick Tongs" I haven't tried the quick tongs, but it would seem like a good option for someone new.
Here's what I did, right or wrong. When forge welding the bit of file onto the end I first upset & squared up the end of the spike, cooled it just so I wouldn't burn myself then locked it in my post vise. Then I took the piece of file, heated it to orange and shaped it into a U-shape to fit on the end of the spike. I have a jack hammer bit I forged into a bickern that helps make the tight radius'. Once it's shaped to fit onto the spike I tack weld it w/ my arc welder. Once that's all done I proceed to forge weld, which I would recommend learning how to do first which I'm still learning as well. You'd be best off reading what's already out here than me telling you how I did it, or even better going to a local ABANA group and have someone show you.
I don't anneal it at any point, but after I forge it into the hatchet I'll normalize 2-3 times, harden it in oil and then temper to a purple in the kitchen oven. If I was making a spike hawk w/o the bit of file welded into the end I'd harden it in ice water and then put it in the oven at 350' for an hour only to relieve stresses, but not temper since even the HC spikes aren't that high in carbon.