Earthworking machine cutting element having carbide insert and method for forming the cutting element
AssigneeCaterpillar Inc.
InventorsRichard L. Adrian, Phillip J. Shankwitz
Life of this patent
Estimating the term…
Abstract
A carbide insert having fracture orienting grooves and a method for forming a cutting element for an earthworking machine. The carbide insert is placed in a groove formed on the cutting edge of the cutting element and there maintained by deforming walls of the cutting element into intimate contact with the carbide insert.
Claims30
A method for forming an elongated cutting element for an earthworking machine, said cutting element having an elongated carbide element extending along the cutting edge of said cutting element, comprising:
- forming an elongated groove of preselected dimensions along said cutting edge of the cutting element;
- providing an elongated carbide insert having a longitudinally extending axis, a length of greater than 1 foot and grooves angularly oriented relative to the insert longitudinal axis and extending a preselected distance about the periphery with said grooves spaced preselected distances one from the other;
- inserting the carbide insert within the elongated groove;
- heating to a preselected temperature the cutting element having the carbide insert;
- and
- deforming walls of the groove into contact with the carbide insert.
An elongated carbide insert for association with a cutting edge of an elongated cutting element of an earth working machine, comprising:
- said elongated carbide insert having a longitudinally extending axis, a plurality of grooves angularly oriented relative to the longitudinal axis and extending transverse the longitudinal axis of the insert and having forward and rearward edges, said insert grooves extending a preselected distance about the periphery of the insert and being spaced preselected distances one from another.
A method for forming an elongated cutting element for an earthworking machine, said cutting element having an elongated carbide element extending along the cutting edge of said cutting element, comprising:
- forming an elongated groove of preselected dimensions along said cutting edge of the cutting element;
- providing an elongated carbide insert having a longitudinally extending axis, a length of greater than 1 foot and grooves angularly oriented relative to the insert longitudinal axis and extending a preselected distance about the periphery with said grooves spaced preselected distances one from the other, said carbide insert having rearward and forward edges, said rearward edge being of a greater thickness "T" than the thickness "t" of the forward edge and including inserting the carbide insert into the cutting element groove with the rearward edge of the insert immediately adjacent the bottom of the groove.
An elongated carbide insert for association with a cutting edge on an elongated cutting element of an earth working machine, comprising:
- said elongated carbide insert having a longitudinally extending axis, a plurality of grooves angularly oriented relative to the longitudinal axis and extending transverse the longitudinal axis of the insert and having forward and rearward edges, said insert grooves extending a preselected distance about the periphery of the insert and being spaced preselected distances one from another, said rearward edge of the carbide insert being of arcuate cross sectional configuration.
Dependencies are inferred from the claim text.