Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2004.11a
- /
- Pages.430-434
- /
- 2004
Design of a Mandrel for Expansion of the Tube of the Heat Exchanger
열교환기 튜브확관을 위한 맨드렐 설계
Abstract
Specifically designed mandrel is needed to expand tube of the heat exchanger with inner grooves. Configuration of the expanded tube depends upon the shape and feeding velocity of the mandrel. 3D simulation software LS-DYNA was used to obtain optimum design conditions of the mandrel. We show how configuration of the expanded tube varies with different design parameters such as the approaching angle, diameter , and the feeding velocity of the mandrel. Material property data for analysis were obtained through experiments with SHPB ( Split Hopkinson Pressure Bars ).