Video: Burn metal hot enough and you can do whatever the hell you want with it. Here’s a glimpse of how a coil spring, which is used in a car’s suspension, gets made. It’s interesting that even though the machines do most of the work in shaping the spiral, there are still a lot of hands involved in transforming the rod into the final spring. Imagine accidentally dropping it on your foot.
Watch A Red Hot Metal Rod Get Wound Up Into A Coil Spring
