Warpage analysis of a Door Carrier Plate in the injection molding Considering the characteristics of LFT

LFT소재 특성을 고려한 Door Carrier Plate 변형 해석

  • You, Ho-Young (School of Mechanical Engineering, Ulsan College) ;
  • Park, Sihwan (School of Mechanical Engineering, Ulsan College)
  • 유호영 (울산과학대학교 디지털기계학부) ;
  • 박시환 (울산과학대학교 디지털기계학부)
  • Received : 2013.07.09
  • Accepted : 2013.08.07
  • Published : 2013.08.31


The modularization accomplished a big contribution in cost down and assembly-time shortening and the quality increase. But few improvements were made to this design largely due to the inflexibility of steel. In recent years, door modules made of PP-LFT material is manufactured using injection molding method. As a result, the plastic door modules allow more flexibility of door shape and become lighter. Warpage is generally large in the molded plastic door carrier plate due to the limitation of gate location and the fiber orientation. So after a few test injection the mold compensation processing for the improvement of an assembly characteristic. This research was performed to determine the factors that contribute to warpage for a injection-molded door carrier plate and presented differences in three mesh types of meshing method and its results. as a result we can improve process of tooling modification can reduce process of trial and error.


Injection molding;LFT;Mesh type;Warpage


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