Plate parts with other machining methods are difficult to make.
Using each type of work combined machining, not only low efficiency, difficult to guarantee the quality, and high cost.
According to statistics, 80% comes from the car dedicated precision stamping parts.
These precision stamping has the characteristics of what?
Mass production and achieve appropriate economic scale of production of parts of mechanical and electronic products, including: the card in the truck, car, motorcycles, and other precision stamping parts, from raw materials exactly rushed out of the forming, no machining.
Complex shape, size and shape of a high precision, the majority of the material thickness t > 3 mm ~ 12.
5 mm, for medium thickness plate and thick plate fine blanking parts, blunt cut flat, bright and clean, quality equivalent to that of machining.
Sharp, flat Angle is small, some of the side of hole spacing and hole spacing (
T and pressure convex, sink holes, blind holes and wheel flange forming fine blanking, especially small modulus involute and cycloid, triangle, rectangle, trapezoid shape and high precision gear fine blanking parts, are made with other processing technology.
Fine blanking punching section because of cold work hardening effect, the surface hardness, strength greatly increased, the friction resistance and weather resistance, used as a movement on the surface of the friction gear tooth profile, collar and other precision metal stamping parts, it will improve the service life.
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