Invention Grant
US07712396B2 Laminated stamping tool 失效
层压冲压工具

Laminated stamping tool
Abstract:
A stamping tool and a method of making a punch assembly and a die assembly of the stamping tool. At least one of the punch and die assemblies including a plurality of laser-cut steel plates having hardened edges suitable to withstand high pressures and impacts generated during stamping operations. The assembly further including an internal passage defined by holes formed in a number of plates of the plurality of laser-cut steel plates.
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