Investigation of the effects of main roll-forming process parameters on quality for a V-section profile from AHSS

The cold-roll-forming process is one of the main processes for mass production of the profiles with constant cross-section in many industrial sectors. The introduction of advanced high-strength steels (AHSS), such as DP-series and TRIP-series, into the production of roll-formed profiles has brought new challenges. The current paper exploits the finite elements (FE) method and investigates the effects of the main roll-forming process parameters, namely the roll-forming line velocity, rolls inter-distance, rolls gap, and rolls diameter, on quality characteristics. These characteristics are the distribution of longitudinal and transversal strains on final profile, total, and elastic longitudinal strains and longitudinal residual strains at strips edge along the forming direction and dimensional accuracy of the profile after the final roll station.