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US 10,479,155 B2Granted
Cladding structure and method
AssigneeCaterpillar Inc.
InventorJohn Johnson
Life of this patent
Estimating the term…
Abstract
A cladding structure and method for cladding machine components to inhibit crack propagation includes at least one set of primary bands, with each primary band being deposited adjacent to and abutting at least one other primary band, forming at least one inter-pass clad boundary, and at least one set of secondary bands deposited in a spaced configuration and oriented so as to intersect at least one inter-pass clad boundary.
Claims15
A machine component comprising:
- a body including a one-piece core formed of a core material and having at least one fatigue sensitive region and at least one fatigue insensitive region, and
- a cladding formed upon the one-piece core and extending throughout the at least one fatigue sensitive region;
- the cladding being formed by a set of primary bands of cladding material deposited upon and bonded to the one-piece core in contact with the core material, and a set of secondary bands of cladding material deposited upon and bonded to the one-piece core in contact with the core material;
- each of the primary bands being adjacent to and abutting at least one other primary band;
- and
- each of the secondary bands being oriented transverse to a plurality of the primary bands to inhibit propagation of cracks within an inter-pass clad boundary formed between adjacent ones of the primary bands;
- and
- each of the secondary bands being spaced apart from one another and each oriented so as to interrupt at least one of the inter-pass clad boundaries.
5 more elements
A machine component comprising:
- an elongate body defining a longitudinal axis, the elongate body including a core formed of a core material, and
- a cladding upon the core, the cladding including a set of primary bands and a set of secondary bands, and each of the set of primary bands and the set of secondary bands being in contact with the core material;
- the primary bands being oriented adjacent to and abutting at least one other primary band, such that an inter-pass clad boundary extends between adjacent ones of the primary bands, the adjacent ones of the primary bands extending at least 360 degrees around the longitudinal axis such that the inter-pass clad boundary forms a continuous boundary around the machine component;
- the set of secondary bands being spaced apart from one another and each oriented so as to interrupt at least one of the inter-pass clad boundaries;
- and
- at least one of the inter-pass clad boundaries being uninterrupted by the set of secondary bands.
3 more elements
Dependencies are inferred from the claim text.