What Tonnage is Ideal for Cookware Deep Drawing
Selecting the correct press tonnage is one of the most critical steps in the cookware deep drawing process. Using too little tonnage results in wrinkled, poorly formed pieces, while too much tonnage can damage the tooling, the press, and the material itself. The "ideal" tonnage is not a single number but a calculated range based on several key factors. Key Factors That Determine Required Tonnage Tonnage (the force exerted by a hydraulic press) directly correlates to the resistance of the material and the demands of shaping. The following factors are non-negotiable in calculations: 1. Material Type & Thickness Different cookware materials have unique tensile strengths and plasticity, while thickness increases the force needed to deform the metal. Aluminum: Soft and ductile, requiring lower tonnage. For 1–3mm thick aluminum (common in lightweight pots/pans), 100–315 tons suffice. Stainless Steel: Harder (especially 18/10 grades) with higher tensile strength. 0.8–2mm ...