When bending metal tubing, the ever-present issue is the inherent desire of that tubing to buckle and fold rather than stretch in just the right places and bend smoothly. There are a number of ways to overcome this when bending tubing, but this is one of the simplest and cheapest: bending springs. Read on to learn how and why they work.
Bent tubing is key. Roll cages need it. Tube frame chassis need it. Even the storage arrangement for my welding clamps needed it. There are a number of ways to go about bending tubing. Rotary draw benders like the Hossfeld Universal bender make a tight bend at one point. Three-roll benders create more gradual curves. But none of them compare to this automated CNC tube bender that just spits out steel in any shape you want. I could watch it all day.