TOOL FOR FORMING A THREE DIMENSIONAL ARTICLE OR CONTAINER

摘要

A forming tool assembly and method for forming a cooking element. The forming tool assembly has an upper tool assembly and a lower tool assembly that cooperate to shape the cooking element from an annular cutout. As shown in Fig. 6, the cylindrical head (217) includes a lip (233) (broadly ?projection?) forming the outer radial edge of the axial surface.(209) of the knockout (205). The head (217) has spaced apart axial openings (237) spaced radially inward from the lip (233.). The lip (233) facilitates clamping of the annular cutout (5) between the upper tool assembly (61) and lower tool assembly (63) during operation of the forming tool (15). The axial openings (237) create low-pressure cavities on the axial surface (209) of the knockout (205) that grip the annular cutout (5) by receiving portions of the annular cutout and prevent the cutout from sliding during formation of the cooking ring (1).