TOOLING BY DESIGN

摘要

Last month a reader submitted a question regarding press tonnage calculations. The reader had commented, "On several occasions we had to move our dies to a larger press because the press we selected did not have enough power. In fact, the press slowed down noticeably during production. When we moved the die to a larger tonnage press the problem went away. "His concern was that his engineers were using incorrect formulas when calculating the required press forces.