Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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Consideration of thickness change during progressive drawing process of automotive coupler parts(AL5052-H32)

자동차 커플러 부품(Al5052-H32)의 프로그래시브 드로잉 공정 시 두께 변화 고찰

  • Received : 2020.09.15
  • Accepted : 2020.09.30
  • Published : 2020.09.30
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Abstract

Progressive drawing processing is one of the manufacturing processes used to mass-produce a variety of products on the industrial site. In this study, the goal is to achieve a uniform product thickness of at least 1.3mm by reducing the wall thickness of the coupler parts used in automotive air conditioning systems to within 15% using A5052-H32 materials. The progressive die was designed using Blank's law of volume invariance. Due to the characteristics of the drawing process, the material thickness in the punch R part decreases and the thickness in the die R part increases. When designing the progressive die of the coupler part, an ironing method, a push back method, and a stand-alone die pad method were applied to each process to design a mold in consideration of the drawing rate and to artificially adjust the thickness change. The suitability of the method used in die design was investigated by measuring the thickness change of forming parts for each process. In the final part, it was confirmed that the thickness measurement values of the five regions of a radial line were implemented as 1.34-1.36 mm.

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References

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