Bonded Assembly Having Low Residual Stress
First Claim
1. A method for forming a bonded assembly comprising:
- providing a first and second portion of the assembly;
preparing a mating surface on each portion that conforms substantially to the mating surface of the other portion;
rapidly heating a bonding material while substantially heating no more than a thin surface zone adjacent each mating surface; and
rapidly assembling the two portions in such a manner as to confine a fraction of the bonding material between the mating surfaces.
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Accused Products
Abstract
In one aspect of the present invention, a method for forming a bonded assembly comprises providing a first and second portion of the assembly; preparing a mating surface on each portion that conforms substantially to the mating surface of the other portion; rapidly heating a bonding material while substantially heating no more than a thin surface zone adjacent each mating surface, and rapidly assembling the two portions in such a manner as to confine a fraction of the bonding material between the mating surfaces. The first portion may comprise polycrystalline diamond or thermally stable polycrystalline diamond; the second portion may comprise cobalt-cemented tungsten carbide. The assembly may comprise a tool for high-impact applications.
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Citations
25 Claims
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1. A method for forming a bonded assembly comprising:
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providing a first and second portion of the assembly; preparing a mating surface on each portion that conforms substantially to the mating surface of the other portion; rapidly heating a bonding material while substantially heating no more than a thin surface zone adjacent each mating surface; and rapidly assembling the two portions in such a manner as to confine a fraction of the bonding material between the mating surfaces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A high impact tool formed by a process comprising the steps of;
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providing a first and second portion of the tool; preparing a mating surface on one portion that conforms substantially to the mating surface of the other portion; rapidly heating a bonding material while substantially heating no more than a thin surface zone adjacent each mating surface; and rapidly assembling the two portions in such a manner as to confine a fraction of the bonding material between the mating surfaces. - View Dependent Claims (22, 23)
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24. A method of bonding a high impact tool to a tool holder, comprising the steps of:
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preparing a mating surface on the high-impact tool that conforms substantially to a mating surface on the tool holder; rapidly heating a bonding material while substantially heating no more than a thin surface zone adjacent each mating surface; and rapidly assembling the high impact tool and the tool holder in such a manner as to confine a fraction of the bonding material between the mating surfaces. - View Dependent Claims (25)
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Specification