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A drawing die needs more than a bore diameter. Its entry, reduction zone, bearing and exit features perform different jobs. This guide explains the profile and shows why angle notation and the supplied nib condition need to be explicit.
Fine, submicron and coarse describe carbide grain structure, but the labels must be read using the supplier’s definitions.
Tungsten carbide and silicon carbide are both used for mechanical seal faces, but the material name alone does not define a replacement. Learn how binder or ceramic composition, the mating face and lubrication change the comparison.
Cobalt binder percentage describes composition, not a complete carbide grade.
Stepped carbide parts need a drawing that relates each diameter, shoulder and taper to the functional reference geometry.
Specify surface finish as a measurable requirement on a named surface.
EDM and diamond grinding solve different carbide geometry problems.
An OD size tolerance, roundness requirement and surface-finish requirement control different things.
A carbide punch and its mating die do not automatically need the same grade.
A straight punch drawing and a pilot punch drawing should distinguish working geometry from locating and supporting features.