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.| Twelve-point socket screw |
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Product description: Tool used for solid cold-forming. Impacting stamp for applying the key geometry of a twelve-point socket screw.
Workpiece data: Exterior diameter: 7.00 mm; length: 25.00 mm; height of twelve-point geometry: 3.00 mm; materials: 1.2083, 1.4034 or 1.4571
PEM task: Precise centric lowering of the cylindrical outer contour of the twelve-point geometry. No thermal influencing of the material structure for increasing tool service life.
PEM solution: 4x electrode made of brass CuSn39Pb3, HSC-milled, generator current of 100 A, erosion depth of 3.00 mm, feed rate of 0.3 mm/min., machining time of 10 min. for four simultaneously-manufactured impacting stamps, surface roughness of Ra < 0.2 µm
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