Study on process optimization of wrinkling defect in transition area of D-pillar trim plate of side wall outer plate
Taking the D-pillar perfoliating trim plate of the side wall outer plate as an example,the height of mounting surface and the appearance surface of the trim plate was different,and the tran-sition was sharp.Due to the requirement of negative flanging length of 30 mm for spot welding elec-trode holder,it would occur wrinkling and cracking by adopting conventional side sizing process.The problem were analyzed one by one and the corresponding countermeasures were formulated in the phase of synchronous engineering design,CAE software was applied to simulate analysis,and the wrinkling problem caused by long negative flanging was solved by using side clamping flanging process,and the field verification was completed.
NETL
NSTL
万方数据
