Progressive Metal Stamping

In Progressive Metal Stamping, the contact area should be treated as a functional surface, not simply as another formed feature. C1100 is conductive and ductile, but a 1.5 mm section can still work-harden around tight bends and coin areas. Progressive stamped components may need generous punch support and staged forming to avoid edge cracking or unwanted thinning. For progressive stamping products that will be crimped, bolted, or plated, the die should keep the mating face flat and prevent tool marks from crossing the electrical contact zone.

Progressive press stampings depend on accurate feed pitch and positive pilot entry. The strip must remain stiff enough after piercing so later forming does not pull the pitch or rotate the terminal. Burr direction should be agreed before layout approval, especially around cable-entry and fastening features. Progressive stamping parts of this thickness can carry substantial cut-off load; the final station should separate the part without bending the contact section. Scrap and finished pieces need different routes so they cannot mix beneath the press.

Progressive sheet metal parts should be approved from measured samples taken after the tool reaches a stable temperature and feed condition. Inspection may include hole position, profile, bend angle, contact flatness, burr height, and coating or plating areas if required. For quotation, provide the 2D drawing, 3D drawing, die technical standards, press specification, annual demand, and material temper. Changdong can then review the Progressive Metal Stamping sequence, strip utilization, likely forming risks, and the sample plan before steel is released for machining.

The approved setup should identify feed height, lubrication, pilot timing, shut height, and the condition of the cut-off station. Copper from different lots can vary in temper and surface behavior, so incoming material certificates should be retained. First-off and last-off samples from a production run provide a practical check that contact geometry has not shifted as the tool warms or wears.