| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for warm working a stainless steel foil capable of preventing the occurrence of cracks and more securely performing deep drawing even in a case of a thin stainless steel foil having a thickness of 300 μm or less.SOLUTION: A ferrite-based stainless steel foil 2 having a thickness of 300 μm or less is disposed so as to face a punch 12, and the stainless steel foil 2 is subjected to a drawing process in a state where an annular region 2a of the stainless steel foil 2 with which a shoulder part of 12d of the punch 12 comes into contact is set to be 20°C or less and an external region 2b of the annular region 2a is set to be 40°C or more and 100°C or less. |
