This study investigates the pattern of thinning in the square-shaped deep drawing of aluminium alloy by focusing on the die-punch alignment. The thickness measurements of the drawn blank are obtained by analysing the images obtained from the Alicona Infinite System, a commercial 3D non-contact surface measurement system. The thinning pattern is then mapped on the basis of the measurements made on a few locations along the drawn blank cross-sectional profile. Results show that misalignments may cause unbalanced thickness, thus leading to the premature failure of the blank. Furthermore, misalignments also increase the load required for the drawing process.
This study investigates the pattern of thinning in the square-shaped deep drawing of aluminium alloy by focusing on the die-punch alignment. The thickness measurements of the drawn blank are obtained by analysing the images obtained from the Alicona Infinite System, a commercial 3D non-contact surface measurement system. The thinning pattern is then mapped on the basis of the measurements made on a few locations along the drawn blank cross-sectional profile. Results show that misalignments may cause unbalanced thickness, thus leading to the premature failure of the blank. Furthermore, misalignments also increase the load required for the drawing process.
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