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Research on deep drawing with multi-ring blank holder technique
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Abstract
In this paper, a novel multi-ring blank holder technique is developed. The blank holding force (BHF) provided by each ring can be independently and effectively applied on all radial regions. The principles and advantages of the multi-ring technique are first explained and analyzed by theoretical derivation, stress analysis, and forming simulation. The results indicate that the distribution of the blank holder force per unit area (FUA) applied by the new blank holder technique is more reasonable than using the conventional single blank holder, and can better suppress the wrinkles. Finally, the effectiveness of the multi-ring blank holder technique is proven by a deep drawing experiment of the 08Al plate. It is verified that due to the reasonable FUA distribution, the use of the blank holder technique can suppress the wrinkles on the flange very well.
Title: Research on deep drawing with multi-ring blank holder technique
Description:
Abstract
In this paper, a novel multi-ring blank holder technique is developed.
The blank holding force (BHF) provided by each ring can be independently and effectively applied on all radial regions.
The principles and advantages of the multi-ring technique are first explained and analyzed by theoretical derivation, stress analysis, and forming simulation.
The results indicate that the distribution of the blank holder force per unit area (FUA) applied by the new blank holder technique is more reasonable than using the conventional single blank holder, and can better suppress the wrinkles.
Finally, the effectiveness of the multi-ring blank holder technique is proven by a deep drawing experiment of the 08Al plate.
It is verified that due to the reasonable FUA distribution, the use of the blank holder technique can suppress the wrinkles on the flange very well.
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