Patent ID: 8011081
Filing Date: 2011-09-06
Classification: A01D,B23K,Y10T

Abstract:
1. A method of manufacturing a bedknife for a reel cutting unit of a reel mower, the bedknife cooperating with a plurality of blades of a rotatable cutting reel such that grass is pushed against a cutting edge of the bedknife by the blades of the rotatable cutting reel to cut the grass by shearing the grass between the cutting edge of the bedknife and the reel blades, the bedknife further having a base with an insert fitted or secured to the base in a seat at a leading edge of the base such that the insert forms the cutting edge of the bedknife, which comprises: (a) selecting a heat treatable steel as a material for the base and selecting a tool steel as a material for the insert; (b) heat treating the base and the insert materials prior to the insert being joined to the base; (c) brazing the insert to the base material by heating the insert and the base material assembly locally or generally to a temperature high enough to cause a filler between the base material and the insert to melt and flow with the insert and the base material becoming an integral unit as the filler solidifies during subsequent cooling; and (d) wherein the filler shall have a melting temperature that is equal to or less than approximately 1300° F. to avoid substantially softening the insert or the base material during brazing.