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Remanufactured parts and fealsic thermal sprayed wire for remanufactured parts

A technology for remanufacturing and components, applied in the field of FeAlSiC thermal spraying coating, can solve the problems such as constraints and cost are difficult to achieve

Active Publication Date: 2016-10-05
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, finding a technology for adding materials, and finding an appropriate metallic material for addition during remanufacturing, while satisfying many different but often contradictory constraints, including cost, can be extremely difficult to achieve

Method used

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  • Remanufactured parts and fealsic thermal sprayed wire for remanufactured parts
  • Remanufactured parts and fealsic thermal sprayed wire for remanufactured parts
  • Remanufactured parts and fealsic thermal sprayed wire for remanufactured parts

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Embodiment Construction

[0011] There are many different components, especially engine components, that can be remanufactured and returned to service for a second useful life that can even exceed the useful life of newly manufactured components. The used part will generally have a uniform body having a first shape as a result of using the part. Those skilled in the art will recognize that the dimensional specifications of a part are typically established in engineering drawings, which typically specify materials, surface finishes, multiple dimensions, and often specify tolerances for those dimensions and other specifications known in the art . Depending on the part, the first shape of the body of the part as a result of use may result from at least one of wear and / or degradation, and removal of additional material from the body in order to properly prepare the surface for remanufacturing. For example, it may be desirable to remove some of the original first metallic material so that the resulting coa...

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Abstract

A used component, such as an engine block (30) or engine head (20), has at least one dimension (12, 112) that does not match a dimensional specification of the component. A thermal spray coating (13, 113) of FeAlSiC is applied to the build scale (12, 112). Excess coating (13, 113) is milled away to provide the body (11, 111) and coating (13, 113) with a second shape matching the dimensional specification of the component. The coating (13, 113) has an ordered DO3 crystal structure with a stable alumina scale that develops oxidation resistance at about 700°C.

Description

technical field [0001] The present disclosure relates generally to remanufactured components, and more particularly to a FeAlSiC thermal spray coating that is millable and oxidation resistant at about 700°C. Background technique [0002] Because manufacturing new parts can be prohibitively expensive, engineers are constantly looking for ways to refurbish or remanufacture used parts as new parts that match the part's process and dimensional specifications. For example, in the engine industry there is an ongoing effort to find new and more economical ways to remanufacture components such as engine blocks and engine heads. Remanufacturing metal parts often requires adding material to the used body to create a surface that no longer meets the dimensional specifications of the part. For example, in the case of an engine block, the distance between the end face and the centerline of the crankshaft support bore may decrease somewhat over the life of the block in use. Therefore, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/06C23C4/131C23C4/18B23P6/00
CPCC23C4/08C23C4/18B23P6/00F02F1/24F02F7/00F05C2253/12C23C4/131Y10T428/2918Y10T428/20
Inventor R·E·夏普K·J·卢克M·B·比尔德斯利K·A·希普尔D·J·索德勒特J·D·莫斯M·D·维利兹
Owner CATERPILLAR INC