| 摘要 |
A metallic slide fastener element in which an exposed portion outside of an element is finished uniformly with a high smoothness and the fixing strength to a fastener tape is intensified, and a method for effectively manufacturing the same element, wherein a metallic flat type wire rod (11) is placed on a die (13) and the flat type wire rod (11) is punched out with a punch (12) so as to produce a slide fastener element (1), and at this time, a mouth on a punch side of the die (13) or a peripheral edge (13a) of the die is chamfered at a radius of 0.01 to 1.0 mm and a clearance (T) between the punch (12) and the die (13) is set to 0 to 30 mu m, so that an element (1), which has a cut surface comprising a shear surface (C1) of 80% or more and a fracture surface (C2) of less than 20% and is suitable as a slide fastener to be attached to a high quality product, is obtained. <IMAGE> |
