Patent
Diamond wire drawing die blanks and methods of making the same
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TLDR
A wire drawing die blank and method of producing the same is provided in this article in which the blank is made by forming a compact of a superalloy powder containing a diamond and having an outside diameter smaller than the diameter of the drawing apparatus die aperture in which it is to be used.Abstract:
A wire drawing die blank and method of producing the same is provided in which the blank is made by: A. forming a compact of a superalloy powder containing a diamond and having an outside diameter smaller than the diameter of the drawing apparatus die aperture in which it is to be used, B. pressing a ring of powdered stainless steel having an inner annular opening adapted to receive the sintered superalloy compact containing a diamond and an outer diameter adapted to fit a drawing die apparatus aperture in which it is to be used, said powdered stainless steel having a shrinkage coefficient on sintering sufficient to cause the ring to shrink onto and tightly engage said compact, and C. sintering the stainless steel at a temperature below the melting point of the compact to consolidate and shrink the stainless steel onto the compact and to metallurgically bond the stainless steel and the superalloy of the compact.read more
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Mo Rui,Luo Ying,Zhang Yanjun,Zhang Jun,Zhou Zhicheng,Yang Liqing,Yu Xiaoming,Li Yunhai,Mo Chengle,Zhu Yuanchang,Qin Huaipeng +10 more
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Diamond wire drawing die and process for manufacturing same
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Composite wire drawing die
TL;DR: Composite wire drawing die construction is described in this paper in which a centrally-located mass of diamond, cubic boron nitride or a polycrystalline mixture thereof defines at least the throat of the wire drawing hole, the mass being flanked or girded by at least one mass of metal bonded carbide that is directly bonded thereto.
Patent
Diamond wire drawing die blanks and methods of making the same
TL;DR: A diamond wire drawing die blank and method for making the same are provided in this paper, where a diamond die blank is formed by metering about one half of a metal powder required to form a shroud around a diamond into a die cavity, partially compressing said one half while forming a central conical depression in said powder, placing a diamond in the formed conical cavity, adding the remaining metal powder to the mold over the die and first compressed half, compressing the metal powder around the diamond and sintering said powder compact