Abstract File band stock and production thereof, comprising: a flexible base metal strip having over at least a surface portion thereof, a strong, tough and adherent, abrasive armoring coating produced in situ from abrasive particles of hard, high melting material selected from the group consisting of metal carbides, borides, nitrides, silicides and combinations thereof, and particles of a matrix metal, said matrix metal particles being in said armoring coating, fusion bonded to each other, to said base metal strip and to said abrasive particles, and partially embedding and anchoring said abrasive particles therein with said particles projecting therefrom in the form of a series of sharp cutting edges, said armoring coating being preferably applied to said base metal strip in spaced regularly recurring pattern areas longitudinally of said strip.
A file band according to claim 1 wherein said weldments are spaced apart for increasing flexibility And fatigue life thereof.
Claim 2
Dependent Claim
21 words
A file band according to claim 1 having unarmored opposite ends welded together to form said band into a continuous loop.
Claim 3
Dependent Claim
34 words
A file band according to claim 1 wherein said weldments of fused matrix metal comprise about one-fourth the weight of the abrasive particles partially embedded therein respectively for exposing sharp edges of said particles.
Claim 4
Dependent Claim
34 words
A file band according to claim 1 wherein the average grain size of said abrasive particles exceeds the average grain size of said brazing metal particles in ratios ranging from about 4:1 to 12:1.
Claim 5
Dependent Claim
22 words
A file band according to claim 5 wherein said abrasive particles have an average grain size of about 0.006 to 0.023 inch.