What is the roll roll forming machine? (Serial) 2

        Bending deformation zone roll cold molding cross section, curved pieces of the outer fiber elongation by Ramen, the inner fiber pressure and shortened between the two regions shortening and elongation, there is a layer of fibers of constant length called neutral layer, which in cross section form an arc called the neutral line. Since the outer layer of a pressure strain into a pull, it is likely to cause thinning deformation, the inner layer of compressive strain, is not conducive to plastic flow, coupled with the rigid contact bump forming rolls round, so that the metal nowhere to flow, but to make the inner layer shift, thus the thickness of the bent portion thinning, thinning amount is generally small.

      In determining the thickness and width of the blank that: before and after molding strip thickness change, expand each part after forming (line) and neutral line length equal to the width of the blank.

http://www.chinaformingmachine.com/index.html
mail:chinaformingmachine@gmail.com
86－0317－8223331  13832775288
Click this link to contact us directly:
http://www.chinaformingmachine.com/contact_us.html