| 摘要 |
A method for manufacturing a contoured die wherein a workpiece is formed with depressions extending across the top surface of the workpiece from front to back thereof. The depressions are formed spaced apart from one another to retain flat top surface portions therebetween. Smoothly contoured edge surfaces are then formed on the workpiece in the regions of intersection of the top surface with the front and back surfaces, to produce a die with ridge projections surrounded by top surface portions having a concave elevational contour as viewed in a vertical plane perpendicular to the side surfaces of the workpiece.
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