Realization method of oriented and orderly assignment of diamond in tool bit

Abstract

The invention relates to an orientation order distribution of diamond in a tool bit realization method. A dip mold with round orifice structure is adopted, a needle rod coordinated with the round orifice is arranged in the round orifice, the needle rod firstly descends the height of one diamond when beginning cold pressing, then a skip car equipped with diamonds streaks the dip mold and then streaks out, thus realizing putting one diamond in each needle hole, the dip mold containing the diamond descends to form a powder-loaded die cavity, the die cavity is filled with matrix powder and the needle rod pushes the diamond into the matrix powder, and then a top mold descends for pressing and forming on the matrix powder, thus obtaining single layer tool bit blank with orientation order distribution of diamond. One or a plurality of orientation order distribution of diamond tool bit blanks in different needle hole distribution modes which are pressed by different molds are assembled, pressed and sintered in certain way, thus realizing orientation order distribution of diamond in tool bit three dimensional space. The method utilizes popular cold and hot press device applied in the industry and has the characteristics of high preparation efficiency and low cost.

Description

technical field [0001] The invention relates to a preparation method of a diamond tool bit, in particular to a method for realizing the directional and orderly arrangement of diamonds in the bit. Background technique [0002] The diamond tool is a special tool with the diamond with the highest hardness and the strongest abrasive resistance in nature as the cutting unit, such as figure 1 As shown, a general diamond tool is composed of a metal substrate 1 and a diamond segment 2. The feature of the cutter head made by this method is that the diamonds are randomly distributed in the cutter head, and it is easy to form a diamond accumulation area 3 or a rare area 4 . In the accumulation area, because the cutting force of the diamond is too small, it is not easy to produce an edge; in the diamond-sparse area, the diamond concentration is too low, and the single particle bears a huge working load, so that the diamond particles are crushed by the impact force and fall off prematur...

AI Technical Summary

Problems solved by technology

However, in the prior art, the process of realizing the green body of the cutter head with the orderly arrangement of single-layer diamonds has not been effectively solved.

The orderly arrangement of single-layer diamonds in the cutter head generally adopts two methods: manual arrangement and automatic arrangement. The former is inefficient and does not meet the conditions for industrial production; Companies such as Shinhan (KOREA10-0645748-0000) and Ewha (KOREA10-0502573-0000) realize the production of cutter heads, but these methods are usually a systematic project that requires the use of specialized machinery and equipment, so maintenance and manufacturing costs are high

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