On the Shearing Process of Ductile Sheet Metals : Material Flow in the Deformation Zone of : the Metal Subjected to Blanking with Tools Having Closed Contours

On the Shearing Process of Ductile Sheet Metals : Material Flow in the Deformation Zone of : the Metal Subjected to Blanking with Tools Having Closed Contours

Behavior of metal which lies in the clearance zone and in its neighborhood has been investigated in the case when circular specimens are blanked by tools having circular contours. To the zones of interest, a particular visioplasticity and a strain gauge method are applied. In the circular blanking,...

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Veröffentlicht in:Bulletin of JSME 1978, Vol.21(154), pp.753-760
Hauptverfasser: KASUGA, Yasuo, TSUTSUMI, Shigeaki, MORI, Toshihiko
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Sprache:eng
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container_end_page 760
container_issue 154
container_start_page 753
container_title Bulletin of JSME
container_volume 21
creator KASUGA, Yasuo
TSUTSUMI, Shigeaki
MORI, Toshihiko
description Behavior of metal which lies in the clearance zone and in its neighborhood has been investigated in the case when circular specimens are blanked by tools having circular contours. To the zones of interest, a particular visioplasticity and a strain gauge method are applied. In the circular blanking, materials in the neighboring zones can constrain radial metal flow into and/or out of the clearance zone, so that the flow changes markedly with the proceeding of the punch. The tool clearance affects the flow pattern during the process. It has been found that the time when the ultimate crack initiates depends on the discontinuity of average radial velocities of material across the product and the scrap sides.
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title On the Shearing Process of Ductile Sheet Metals : Material Flow in the Deformation Zone of : the Metal Subjected to Blanking with Tools Having Closed Contours
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