| 摘要 |
The present invention relates to a planar member for fuel cells. According to the present invention, the distance for slide movement with a cutting die is reduced by decreasing local elongation via optimization of the particle diameter of titanium, thereby decreasing abrasion of the cutting die. The planar member for the fuel cells is either an expand flow path (10a) or a separator (10b). For instance, the die cutting parts (13, 14) are formed by a die cutting press, and are made of titanium or a titanium alloy, wherein the average particle diameter of titanium is less than or equal to 15.9 μm. |
