Progressive Metal Stamping Die

The Progressive Metal Stamping Die uses different materials according to the duty of each component. S45C is listed for the main plates, parallels, die shoes, and punch holder, while Cr8 / 1.2080 is specified for several pads, inserts, and the die plate at HRC 46-48. D2 / 1.2379 is assigned to forming, bending, trimming, and cutting elements at higher hardness. These values should remain traceable through material certificates, heat-treatment reports, and hardness checks. Alternative steels are acceptable only when the die technical standards, dimensions, toughness, and wear requirement are satisfied.

The process route may combine functions normally associated with a progressive bending die, a deep drawing progressive die, and staged cutting. Progressive die forming should not be concentrated in one station when material flow or springback needs gradual control. Draw radii, blank holding, pilot timing, and carrier support are reviewed together. For a progressive sheet metal press die, trimming and piercing inserts should be arranged so burr direction and slug removal are predictable. Hole position, profile, trimming line, and the risk of tool marks are checked on the trial strip before final adjustment.

The specification calls for PVD coating on forming components and identifies OERLIKON BALINIT LUMENA ADVANCED. Coated working areas still require suitable polishing, edge preparation, and lubrication; coating does not correct poor clearance or rough machining. In sheet metal progressive tooling, the highest-wear punches and inserts should be removable and identified for maintenance. The Progressive Metal Stamping Die can also use standard guide and spring components selected from MISUMI or an approved equivalent such as PUNCH INDUSTRY, SANKYO OILLESS, Danly, Dayton, or FIBRO when the customer permits substitution. Before manufacturing release, provide the 2D drawing, 3D drawing, die technical standards, and press specification. Changdong can review the steel schedule, heat-treatment route, station sequence, die clamping, and sample-inspection plan. Any proposed material alternative should be approved in writing before purchase or machining.