両面しごき容器の残留応力分布 : 両面しごき加工の研究 III [in Japanese] Residual Stress Distribution of Both-Sided Ironing Cans : A Research of Both-Sided Ironing Process III [in Japanese]
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Requirements for the qualities of ironed cans have become increasingly severe. A newly developed both-sided ironing process can iron the inner and outer surfaces at the same time using inner and outer dies. A comparison between the conventional one-sided ironing and both-sided ironing is described with respect to the residual stress distribution of ironed cans. The residual stress distribution in the walls of cylindrical cans prepared by drawing, one-sided ironing, and both-sided ironing was investigated with Crampton's method. The high tensile residual stress of the circumferential direction in deep drawn cans is largely decreased by ironing, and also by both-sided ironing and an increase of the ironing ratio. In both-sided ironing, the residual stress in the ironed cans can easily be controlled by changing the design of the ironing die profiles and either height of the two dies. Notably, as the height of the inner die decreases, the residual stress tends to change from tension to compression.
- Journal of the Japan Society for Technology of Plasticity
Journal of the Japan Society for Technology of Plasticity 47(549), 948-952, 2006-10-25
The Japan Society for Technology of Plasticity