| 摘要 |
A method of progressive die stamping manufacturing a biopsy forceps jaw comprising the steps of cutting a sheet of metal into a strip. The strip of metal may then be punched with a series of guide holes. A shape larger than a pattern of the biopsy forceps jaw may then be defined in the strip of metal. An actuating hole may be punched into the shape. A concave shaped cup portion of the biopsy forceps jaw may be drawn. The pattern of the biopsy forceps jaw may then be cut to expose a cutting edge and expos ed edges of the pattern. The cutting edge can be coined to provide a hardened, sharp, cuttin g edge. The exposed edges may be chamfered and then the pattern may be folded and shaped to form a biopsy forceps jaw cup and an arm positioned relative to the biopsy forceps jaw cup. A pivot hole may then be punched into the arm. The biopsy forceps jaw may then go through a calibration so that the cutting edge is in a plane perpendicular to a plan e of the arm. The jaw cup may then be cut off of the strip of metal.
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