Cutting blade
AssigneeTritana Intellectual Property Ltd.
InventorDean Mayerle
Life of this patent
Estimating the term…
Abstract
A cutting blade for vegetation is provided for example for use in a straw chopper or rotary mower. The blade includes a first base material and a plurality of hard surface beads of at least two different materials formed on at least one surface of the base material extending up to a cutting edge of the base material wherein the plurality of hard surface beads lie alternately side by side with touching side edges and one contains at least one different material of a different hardness relative to the other so that differential wear rates are created, and a wear profile is controlled. The softer material is burnt away at the edge by the cladding laser to form pockets so that the blade is serrated by the pockets when supplied with additional wear increasing the pockets to maintain the serrations.
Claims21
A blade for mounting on a rotor of a cutting machine for cutting vegetation, the blade comprising:
- a blade member comprising a first base material;
- at least one cutting edge on the blade member;
- side by side strips of cladding material applied to the blade member so as to extend from a position at the cutting edge in a direction transverse to the cutting edge;
- wherein the applied cladding material of said side by side strips is of a greater hardness than the first base material;
- and wherein at least one of the strips of the applied cladding material has greater resistance to wear than at least one of others of the strips of applied cladding material.
A blade for mounting on a rotor of a cutting machine for cutting vegetation, the blade comprising:
- a blade member comprising a first base material;
- at least one cutting edge on the blade member;
- side by side strips of cladding material applied to the blade member so as to extend from a position at the cutting edge in a direction transverse to the cutting edge;
- wherein the applied cladding material is of a greater hardness than the first base material;
- wherein at least one of the strips of applied cladding material has greater resistance to wear than at least one of others of the strips of applied cladding material;
- wherein the greater resistance to wear of said at least one of the strips is provided by applying said applied cladding material in greater thickness;
- and wherein an outer end portion of the blade is clad with cladding material of greater thickness than said at least one of others of the strips of applied cladding material.
A blade for mounting on a rotor of a cutting machine for cutting vegetation, the blade comprising:
- a blade member comprising a first base material;
- at least one cutting edge on the blade member;
- side by side strips of cladding material applied to the blade member so as to extend from a position at the cutting edge in a direction transverse to the cutting edge;
- wherein the cladding material is of a greater hardness than the first base material;
- and wherein at least one of the strips of cladding material has greater resistance to wear than at least one of others of the strips of applied cladding material;
- wherein the greater resistance to wear of said at least one of the strips is provided by applying said applied cladding material in greater thickness;
- and wherein a portion of said at least one of others of the strips of applied cladding material at the edge is removed by application of heat energy to form a recessed pocket at the edge with a series of the pockets along the edge defining a serrated edge.
Dependencies are inferred from the claim text.