Creation of the Outside Surface of Car Door and its Quality Analysis Based on CATIA

In view of the structural features of car door,a method based on CATIA V5 for rapid modeling and its quality evaluating is proposed.This method,at first adopting the compositive modeling function of CATIA V5,created the three-dimensional outside plate surface model of car front door,and then a variety of surface quality evaluating methods including isophotes mapping,multi-section curvature comb,Gauss curvature and reflection lines are discussed.The result verified that the model of the car door satisfied the standards of Class A surfaces,and it provided reliable theoretical evidence for the subsequent mould manufacturing of car door.