Methods for manufacturing connecting rod assemblies and crankshaft assemblies
First Claim
1. A method for manufacturing a connecting rod assembly, wherein a connecting rod comprises a shaft connecting a first end including a first bore with a second end including a second bore, the method comprising:
- fabricating the second end of the connecting rod via additive manufacturing wherein a plurality of stacked metal layers are formed by selectively applying heat or energy to one or more metal precursors which includes a metal wire precursor, and the additive manufacturing conditions are controlled such that the fabricated second end comprises a first weakened region and a second weakened region on opposing sides of the second bore;
breaking the second end of the connecting rod at each of the first and second weakened regions to form the connecting rod assembly comprising a base having a second end base and a cap having a second end cap, wherein the base comprises a first fracture face and a second fracture face which each respectively correspond to a first fracture face of the cap and a second fracture face of the cap;
wherein the first fracture face of the base, the second fracture face of the base, the first fracture face of the cap, and the second fracture face of the cap are each a non-planar configuration; and
wherein the non-planar configurations of the first fracture face of the base and the second fracture face of the base are concave or convex, and the non-planar configurations of the first fracture face of the cap and the second fracture face of the cap are the other one of concave or convex to mate with the non-planar configurations of the first fracture face of the base and the second fracture face of the base respectively.
1 Assignment
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Accused Products
Abstract
A connecting rod comprises a shaft connecting a first end including a first bore with a second end including a second bore. Methods for forming and assembling a connecting rod and crankshaft assembly include fabricating the second end of the connecting rod via additive manufacturing such that the second end comprises a first and second weakened regions on opposing sides of the second bore, and breaking the second end of the connecting rod at the first and second weakened regions to form a connecting rod assembly comprising a second end base and a second end cap, wherein the base comprises a first fracture face and a second fracture face which each respectively correspond to a first fracture face and a second fracture face of the cap. The methods can further include mating the base and the cap such that a crankpin of a crankshaft is disposed within the second bore.
3 Citations
18 Claims
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1. A method for manufacturing a connecting rod assembly, wherein a connecting rod comprises a shaft connecting a first end including a first bore with a second end including a second bore, the method comprising:
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fabricating the second end of the connecting rod via additive manufacturing wherein a plurality of stacked metal layers are formed by selectively applying heat or energy to one or more metal precursors which includes a metal wire precursor, and the additive manufacturing conditions are controlled such that the fabricated second end comprises a first weakened region and a second weakened region on opposing sides of the second bore; breaking the second end of the connecting rod at each of the first and second weakened regions to form the connecting rod assembly comprising a base having a second end base and a cap having a second end cap, wherein the base comprises a first fracture face and a second fracture face which each respectively correspond to a first fracture face of the cap and a second fracture face of the cap; wherein the first fracture face of the base, the second fracture face of the base, the first fracture face of the cap, and the second fracture face of the cap are each a non-planar configuration; and wherein the non-planar configurations of the first fracture face of the base and the second fracture face of the base are concave or convex, and the non-planar configurations of the first fracture face of the cap and the second fracture face of the cap are the other one of concave or convex to mate with the non-planar configurations of the first fracture face of the base and the second fracture face of the base respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for forming and assembling a connecting rod assembly and a crankshaft assembly, wherein a connecting rod comprises a shaft connecting a first end including a first bore with a second end including a second bore, the method comprising:
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fabricating the second end of the connecting rod via additive manufacturing wherein a plurality of stacked metal layers are formed by selectively applying heat or energy to one or more metal precursors which includes a metal wire precursor, and the additive manufacturing conditions are controlled such that the fabricated second end comprises a first weakened region and a second weakened region on opposing sides of the second bore; breaking the second end of the connecting rod at each of the first and second weakened regions to form the connecting rod assembly comprising a base having a second end base and a cap having a second end cap, wherein the base comprises a first fracture face and a second fracture face which each respectively correspond to a first fracture face of the cap and a second fracture face of the cap, and wherein the first fracture face of the base, the second fracture face of the base, the first fracture face of the cap, and the second fracture face of the cap are each a non-planar configuration; mating the second end base and the second end cap such that a crankpin of a crankshaft is disposed within the second bore; and wherein the non-planar configurations of the first fracture face of the base and the second fracture face of the base are concave or convex, and the non-planar configurations of the first fracture face of the cap and the second fracture face of the cap are the other one of concave or convex to mate with the non-planar configurations of the first fracture face of the base and the second fracture face of the base respectively. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for forming and assembling an automotive component assembly, wherein an automotive component comprises an end including a bore, the method comprising:
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fabricating the end of the automotive component via additive manufacturing wherein a plurality of stacked metal layers are formed by selectively applying heat or energy to one or more metal precursors which includes a metal wire precursor, and the additive manufacturing conditions are controlled such that the fabricated end comprises a first weakened region and a second weakened region on opposing sides of the bore; breaking the end of the automotive component at each of the first and second weakened regions to form the automotive component assembly comprising a base having an end base and a cap having an end cap, wherein the base comprises a first fracture face and a second fracture face which each respectively correspond to a first fracture face of the cap and a second fracture face of the cap, and wherein the first fracture face of the base, the second fracture face of the base, the first fracture face of the cap, and the second fracture face of the cap are each a non-planar configuration; mating the end base and the end cap such that an automotive member is disposed within the bore; and wherein the non-planar configurations of the first fracture face of the base and the second fracture face of the base are concave or convex, and the non-planar configurations of the first fracture face of the cap and the second fracture face of the cap are the other one of concave or convex to mate with the non-planar configurations of the first fracture face of the base and the second fracture face of the base respectively.
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Specification