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Diamond for drawing die, heat sink or down direction in front of the direction, a method for producing the diamond and a die produced thereby.
Diamond for drawing die, heat sink or down direction in front of the direction, a method for producing the diamond and a die produced thereby.
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机译:用于拉模的金刚石,散热片或在该方向前方的向下方向的金刚石的制造方法和由此制得的模具。
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摘要
A synthetic single crystal diamond for wire drawing die, dresser or heat-sink; the process of manufacturing it and a wire drawing die to utilize it are disclosed. At least one plane of the diamond for wire drawing die is a cleavage plane of (111) faces, and the drawing hole of wire drawing die lies vertical to the cleavage plane. The diamond for the wire drawing die is produced by providing a synthetic single crystal having 20 - 400 ppm nitrogen of Ib type diamond. A groove is made on the diamond surface parallel to (111) faces employing energy beams such as a laser beam, an ion beam and an electron beam. A wedge is struck into the groove to cleave the diamond, and a plate is obtained. Furthermore, the plate is divided into polyhedrons, employing either an energy beam or a blade. The cleavage plane of the polyhedron is almost parallel to the (111) faces of crystal, therefore the cleavage plane is used as the standard plane to build the drawing hole.
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