| 摘要 |
<p>Novel methods and apparatus for providing a facet (52, 54, 56) on opposed surfaces (50) of a cutting instrument such as a razor blade (10) or the like. Essentially, the methods and apparatus are designed to initially abrade opposed surface portions of the instrument concurrently with a relatively high degree of coarseness at a relatively low included angle and thereafter concurrently abrading the opposed surface portions with progressively decreasing degrees of coarseness at progressively increasing included angles. The facets provided by the methods and apparatus on the opposed surfaces of the instrument have a surface in which the included angle decreases as the distance from the edge of the instrument increases.</p> |
