Optically improved diamond wire die
First Claim
1. A die for drawing wire comprises(1) a substantially transparent polycrystalline CVD diamond body having a thermal conductivity greater than 4 watts/cm-k and a uniform small diamond grain structure of less than about 5 microns throughout its cross section and an opening for receiving wire fed through said opening during drawing, and(2) a support body for supporting the diamond body, whereby the wear resistance of said die is substantially improved.
3 Assignments
0 Petitions
Accused Products
Abstract
A die for drawing wire of a predetermined diameter comprising an optically non-opaque CVD diamond body having a thermal conductivity greater than 4 watts/cm-K with an opening extending through said body and having a wire bearing portion of substantially circular cross-section determinative of the diameter of the wire.
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Citations
5 Claims
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1. A die for drawing wire comprises
(1) a substantially transparent polycrystalline CVD diamond body having a thermal conductivity greater than 4 watts/cm-k and a uniform small diamond grain structure of less than about 5 microns throughout its cross section and an opening for receiving wire fed through said opening during drawing, and (2) a support body for supporting the diamond body, whereby the wear resistance of said die is substantially improved.
Specification
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- Resources
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Current AssigneeDiamond Innovations Incorporated (Sandvik AB)
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Original AssigneeGeneral Electric Company
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InventorsMcNamara, Karen M., Williams, Bradley E., Anthony, Thomas R.
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Primary Examiner(s)Crane, Daniel C.
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Application NumberUS08/148,803Time in Patent Office739 DaysField of Search72/467, 423/446, 156/DIG. 68, 51/309US Class Current72/467CPC Class CodesB21C 3/025 comprising diamond parts
