At the die try-out stage, the strain signature, taken across the comer ABCD of a pressed steel box, is found to lie in the danger region of the FLD (see Fig, XXXXXXXXXXList the most likely...

At the die try-out stage, the strain signature, taken across the comer ABCD of a pressed steel box, is found to lie in the danger region of the FLD (see Fig, 15.14). List the most likely modifications that could be made to make the pressing safe. Given that the original sheet thickness is 1.5 mm and the «- value is 0.2, employ the construction in Fig. 15.12 to recommend possible material changes.