دستگاه تست کشش و برگشت فنری ورق- استاندارد 12704

ISO 24213:2017 specifies a method for evaluating the amount of springback of sheets of metallic materials known to exhibit large amounts of springback subjected to plane-strain stretch bending, which is a typical deformation mode generated in press-formed panels. By using this method, the amount of springback under stretch bending is evaluated accurately and quantitatively.

انحنا

Curvature

مقدار برگشت فنری

Amount of springback

خم کاری کششی

Stretch bending

فشارورق گیر

Blank holding pressure

تنش کششی اسمی

Nominal Tensile Stress