Composite metal article and method of making
AssigneeWilliam Engineering LLC
InventorsPaul Armand Dion, Gregg Anthony Dion
Life of this patent
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Abstract
A composite metal article from two dissimilar metals is prepared. A metal base is comprised of a first metal and having first and second opposing surfaces and a least one longitudinally-positioned depression in each of the first and second opposing surfaces for receiving a wire. An elongated metal element comprised of a second metal is introduced into each of the at least one first and second depressions of the metal base to form a composite assembly, and the composite assembly is heated under pressure to urge the adjacent surfaces of the second metal elements and the depressions together to form a bonded article.
Claims40
A method of making a composite cutting tool having two dissimilar metals, comprising:
- (a) providing a metal base comprised of a first metal and having first and second opposing surfaces, said base having at least one longitudinal depression in at least one of said first and second opposing surfaces;
- (b) introducing a wire comprised of a second metal into said at least one depression of the metal base to form a composite assembly, said second metal comprising a cutting tool grade steel and being harder than the first metal;
- (c) heating the composite assembly under pressure to urge the adjacent surfaces of the wire and the at least one depression together to form a bonded article and to reduce the thickness of the metal base at least at the wire/base interface;
- (d) constraining a lateral spread of the composite assembly using a turks head during at least a portion of the step of heating under pressure under conditions to maintain a lateral bonding pressure on the composite assembly;
- and
- (e) forming the bonded article into a cutting tool having a cutting edge comprising cutting tool grade steel.
A method of making a composite cutting tool having two dissimilar metals, comprising:
- (a) providing a metal base comprised of a first metal and having first and second opposing surfaces;
- (b) positioning at least one wire comprised of a second metal at a location on at least one of said first and second surfaces, wherein the second metal comprises a cutting tool grade steel and is harder than the first metal;
- (c) restricting the lateral movement of the wire relative to its location on said surface to form a composite assembly;
- (d) heating the composite assembly under pressure to urge the adjacent surfaces of the at least one wire and the metal base together to form a bonded article and to reduce the thickness of the metal base at the base/wire interface, wherein at least a first rolling step using a turks head consolidates the composite assembly and maintains a lateral bonding pressure on the composite assembly;
- and
- (e) forming the bonded article into a cutting tool having a cutting edge comprising cutting tool grade steel.
Dependencies are inferred from the claim text.