Effect of forming factors on surface temperature and residual deformation of the plate in line heating
by Liang Qi; Chenglong Zhang; Shunyi Shi; Xialong Li; Jian Liu; Yunqing Tang; Xiuwen Yang; Ping Yang
International Journal of Materials and Structural Integrity (IJMSI), Vol. 7, No. 1/2/3, 2013

Abstract: Parameters of line heating input are key factors which determine temperature field and deformation field in line heating for ship hull plate manufacturing. Two coupling variables named as qs (average energy input per unit area), qs•t (average energy input per unit area and time) are constructed with line heating input parameters to describe relations between final deformation of plate and acetylene flux, heating velocity, heat source radius, heat source efficiency, and length of heating line in line heating. The relation between the new variables and residual deformation is revealed via numerical simulation. The results show that the new variables can reflect the relation between heating parameters and final residual deformation.

Online publication date: Sat, 12-Jul-2014

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