So why is Springback hard to predict, if the calculation is so easy?

So I delved into some shaky territory last week/month/post when I proposed that calculation of springback is an easy formula. Simply take the stress at the time of forming and divide by modulus of elasticity and you will get a result of the elastic strain at the time of forming. EASY PEASY-Mac and Cheesy. Bust [...]

Design in a vacuum

in discussion of development of sheet metal forming tools and processes the rules and fashion of the day, govern what is deemed as acceptable in design–as  just about anything else. In one of our very enlightening discussions with a Die-know-it-all recently, I and the other self-proclaimed die expert in the room learned that :  re-strike [...]