【Common roll forming problem 】: Roll forming machine troubleshooting “LOTOS

Common Problems with a Roll Forming machine: 1. Twist twist in the roll-formed part is like a corkscrew effect and is often caused by excessive forming pressure and asymmetrical profiles. generally, twists can be held to less than 5 degrees in 10 feet or 3 meters. 00:57 = TWIST PROBLEM 2. Bow The vertical plane deviation from a straight line can be a cross or longitudinal bow, it is caused by uneven vertical gaps on symmetrical cross-sections and uneven forming areas on asymmetrical sections in the general bow can be held to plus or minus 1/8 inch in 10 feet or 3mm in 3 meters. 4:05 = BOWING PROBLEM 3. camber Camber is the deviation of a side edge from a straight line measured prior to roll forming. The maximum allowable camber is 3/8 of an inch in 10 feet or 9.5 mm in 3 meters. Excessive camber induces curved bow and twists in the finished roll from parts. 7:14 CAMBE PROBLEM 4. Edge wave Edge waves easily happen in the roll-forming process of thin steel parts, which greatly