Section Knife

摘要

A method of manufacturing a section is formed from a blank having the perimeter of a truncated generally isosceles triangle. Each angled side of the truncated generally isosceles triangle includes a plurality of substantially semi-circular channels. The long axis of each substantially semi-circular channel is substantially parallel to the base of the truncated generally isosceles triangle. The top of the substantially semi-circular channel intersects the front surface of the section knife. The bottom of the substantially semi-circular channel intersects the back surface of the section knife. A cutting edge is formed at the intersection of the substantially semi-circular channel and the back surface of the section knife.

主权项

1. A section knife made according to a process comprising:
forming a metal blank having a back surface and a front surface and a perimeter in the form of a truncated generally isosceles triangle, said truncated isosceles triangle having a thickened base and angled sides; engaging said angled sides with a forming tool to create substantially semi-circular channels, said substantially semi-circular channels being oriented substantially parallel to said thickened base , said substantially semi-circular channels running from said back surface to said front surface.