I'm new to this form and heat-treating in general, so please forgive my ignorance...
We work on a wide variety of motorcycle gas tanks and use heat cleaning (burn-off process of approx. 900 degrees f for an hour) on some. We have been testing various dent removal techniques after heat cleaning and have noticed the metal seems to be harder to move and more brittle (dent pulling pins tear holes easily).
Would the time and temps listed alter the working properties of the metal? If so, is there a way to minimize or reverse the effects of the heat?
Thanks in advance for your input.
