Springback control method for ultrahigh-strength steel roll-formed part

Abstract

The invention discloses a springback control method for an ultrahigh-strength steel roll-formed part. According to the ultrahigh-strength steel roll-formed part, a steel belt made from ultrahigh-strength steel sequentially passes through a roll-forming pass procedure and a springback compensating pass procedure, and the angle of the ultrahigh-strength steel roll-formed part is measured before thespringback compensating pass procedure after the roll-forming pass procedure is completed; the angle deviation value is calculated based on the detected angle of the ultrahigh-strength steel roll-formed part and a pre-calibrated angle springback compensating coefficient, the angle deviation value is transmitted to a servo motor control system of the springback compensating pass procedure, and angle springback compensation is carried out on the ultrahigh-strength steel roll-formed part according to the angle deviation value in the springback compensating pass procedure. The angle deviation value of an ultrahigh-strength steel material in the roll-forming process is calculated through the control method, and it is ensured that the consistent forming effect of the ultrahigh-strength steel roll-formed part is achieved by automatically compensating for the angle deviation.

Description

technical field [0001] The invention relates to the processing technology of roll-pressed products, in particular to a springback control method of ultra-high-strength steel roll-formed parts. Background technique [0002] With the continuous tightening of national environmental protection regulations and fuel economy policies, energy saving and emission reduction have become an important trend in the current automobile development. At the same time, with the development of the automobile industry, fuel economy, low carbon emissions and higher safety have put forward new requirements and challenges for the lightweight of automobile bodies, which has effectively promoted the steady growth of the application of advanced high-strength steel in the design and manufacture of automobile bodies. . However, advanced high-strength steels, especially ultra-high-strength steels, have technical challenges in production and application technology due to changes in microstructure and mac...

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Problems solved by technology

[0004] However, the applicant found that when the ultra-high-strength steel is applied to roll forming, since the springback of the ultra-high-strength steel is particularly large, it is often necessary to manually adjust repeatedly in order to control the springback during the debugging process, which will result in waste of materials and time-consuming work. , equipment utilization is reduced, and the personnel required to operate the rebound adjustment have a higher skill level

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