What are they made of and what’s the heat treatment?
Heat treating mild steel will do little.(the larger diameter still wins)
I’ve made a few small leaf springs recently the heat treatment then relaxing process is really tricky. At the end you give them a squeeze with a pair of pliers and they might squash, they might shatter and bits fly across the garage or you might have done it just right.
All the aluminium alloys commonly used in bicycle parts are solution heat treated and artificially aged, nearly always to the T6 or similar condition. If somebody chooses to draw attention to that, it's only because they have nothing else to say.
What are they made of and what’s the heat treatment?
Heat treating mild steel will do little.(the larger diameter still wins)
I’ve made a few small leaf springs recently the heat treatment then relaxing process is really tricky. At the end you give them a squeeze with a pair of pliers and they might squash, they might shatter and bits fly across the garage or you might have done it just right.