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The significance of high-strength steel concepts for vehicle parts has increased in the last years due to the meeting of reduction in weight and enhanced safety requirements. However these steels have high strength values , this feature is not adequate to reduce the weight of chasis parts due to the reason that weld zones have a limited strength without depending on the strength of steel. This case is a major problem in terms of fatigue requirements.
OEMs usually prefer forged lower control arms as well as the control arms which consist of welded two or more parts on the commercial vehicles. Reduction of stresses on weld zones is one of the targets.
Lower control arms are mostly manufactured from forged , cast and sheet steels and absorb the loads such as braking , acceleration, lateral , longitudinal.
In this study , a lower control arm (LCA) for a light-commercial vehicle is designed by welding of double metal sheets. LCA design has been analyzed on FEA softwares in order to obtain linear and nonlinear test requirements by using inertia relief option , tensile test requirements by using rubbers.
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