Cutting blade
AssigneeTritana Intellectual Property Ltd.
InventorDean Mayerle
Life of this patent
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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.
Claims19
A method for forming a blade for mounting on a rotor of a cutting machine for cutting vegetation comprising:
- defining on a blade body a cutting edge;
- the blade body being formed of a base material;
- applying at least one strip of cladding material to the blade body at the cutting edge so as to provide at least one part of the cutting edge which has the cladding material thereon;
- the cladding material having a resistance to wear greater than that of the base material;
- and applying heat energy to the cutting edge at a plurality of spaced locations along the cutting edge so as to remove away portions of the cutting edge to form a series of recessed pockets along the cutting edge at the locations.
Dependencies are inferred from the claim text.