Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Tolerance Analysis and Design of Refrigerator Door System for Functional and Aesthetic Quality of Gap and Flush

갭과 단차의 기능 및 심미적 품질을 고려한 냉장고 도어 시스템의 공차해석 및 설계

  • Kim, Jinsu (Department of Mechanical & System Design Engineering, Hongik Univ.) ;
  • Kim, Jae-Sung (Department of Mechanical & System Design Engineering, Hongik Univ.) ;
  • Yim, Hyunjune (Department of Mechanical & System Design Engineering, Hongik Univ.)
  • 김진수 (홍익대학교 기계.시스템디자인공학과) ;
  • 김재성 (홍익대학교 기계.시스템디자인공학과) ;
  • 임현준 (홍익대학교 기계.시스템디자인공학과)
  • Received : 2013.11.25
  • Accepted : 2013.12.16
  • Published : 2014.01.01
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Abstract

The central seam, the vertical 'line' between doors, in the front view of a refrigerator must have its gap and flush within certain ranges to meet functional and aesthetic requirements. The conventional criteria for gap and flush control in the industry are to keep the gap and flush within certain ranges at each of various points along the seam. For aesthetics, however, the uniformity of the gap is also as important because a 'tapered' seam is negatively perceived by human eyes. This paper shows a case study of tolerance design for a refrigerator door system. It presents a step-by-step procedure, which consists of datum flow chain analysis, identification of assembly features, computer modeling of feature tolerances, assembly operations and measurements, tolerance simulation, and tolerance adjustments based on the simulation results. It is found that extra care may need to be used to satisfy the aesthetical criterion for gap uniformity.

Keywords

References

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  2. Case Study of Accumulated Tolerance Analysis Using Monte Carlo Simulation for a Portable Medical Appliance vol.25, pp.2, 2016, https://doi.org/10.9709/JKSS.2016.25.2.083
  3. An Advanced Prediction Technology of Assembly Tolerance for Vehicle Door vol.41, pp.4, 2018, https://doi.org/10.11627/jkise.2018.41.4.091