ผลิตภัณฑ์โลหะ
เอกสารมาตรฐาน
ญี่ปุ่น
JSA
JIS Z 2247 : 2006
Method of Erichsen cupping test
2006
8
JISf 2021 V.1
This Standard specifies a standard test method for determining the ability of metallic sheets mainly having a thickness from 0.1 mm up to 2 mm and a width of 90 mm or greater to undergo plastic deformation in stretch forming, using the said metallic sheets as a standard test piece.