503 金属薄板の角筒深絞り成形に関する研究(OS 塑性加工)

概要

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Combined effects of forming condition on deep-drawability of square cups were studied. In order to investigate the fundamental deep-drawability , drawing of rectangular shell of steel sheet was carried out under various deep-drawing condition . (1) As for the square cups, the increase of sheet thickness cause the increase of deformability and elongation, and the control of reduction of sheet thickness. (2) As for the die-radius of drawing, the increase of die-radius cause the increase of elongation and the control of reduction of sheet thickness. (3) The shape of square cups was close connected with sheet thickness, die-radius, and clearance. For example, good deep-drawing of SPCEN sheet could be finished, under the condition of optimum blank shape, blank holding force 5(kN), punch speed 0.5(mm/sec), die-radius 6.0(mm), the sheet thickness 0.7, 0.907 [mm], and die-radius 8(mm), the sheet thickness 1.2 [mm] .
社団法人日本機械学会の論文
2000-11-24