DRAWING DIE FOR TROUGH-SHAPED BODY PANELS Russian patent published in 1997 - IPC

FIELD: cold sheet stamping, may be used for producing parts such as hood panels, rear panel of truck cabin etc. SUBSTANCE: drawing die has punch, die and pressing member with working recesses. Pressing member has lowered portions in locations corresponding to panel open end zones. Pockets are positioned in angular end and side wall junctions on die and pressing member. Drawing die is provided with devices positioned in pressing member pockets and adapted to change shape of sheet blank clamped prior to drawing process. It allows optimum adjustment of drawing die and high quality of panels at variable mechanical characteristics of different metal batches to be provided. EFFECT: reduced metal usage for total allowance and improved quality of panels by reduced tearing and waviness of side surfaces. 2 cl, 5 dwg