Open AccessA first step towards an in-line shape compensation for UHSS roll forming
Author(s) -
Buddhika Abeyrathna,
Bernard Rolfe,
Matthias Weiß
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/651/1/012063
Subject(s) - sheet metal , roll forming , electromagnetic coil , forming processes , process (computing) , compensation (psychology) , automotive industry , engineering , formability , structural engineering , line (geometry) , forging , mechanical engineering , material properties , materials science , computer science , composite material , geometry , psychology , electrical engineering , mathematics , psychoanalysis , aerospace engineering , operating system
Roll forming is an important sheet metal forming process and is being used increasingly in the automotive industry for the manufacture of structural and crash components from Advanced High Strength Steel (AHSS) and Ultra High Strength Steel (UHSS). In AHSS and UHSS, the material properties can change from coil to coil or within the same coil and this can lead to varying part quality in roll forming. The effect of changes in material properties on part quality depends on the geometry of the part being formed as well as on the process parameters. There is a strong interest in developing in-line shape compensation for roll forming, and this will only be possible if the relationship between part quality, material properties, process- and part shape- parameters is understood. In this paper, the effect of material properties and both process and geometrical parameters on longitudinal bow is analysed. A new technique is introduced for the identification of variations in the longitudinal bow in a roll formed component based on roll load and torque measurements as well as process parameters and part geometry.