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High-frequency induction brazed diamond drill bit

A technology of high-frequency induction brazing and diamond drills, which is applied in the fields of diamond drills (opening drills) and high-frequency induction brazing diamond drills (opening drills), which can solve the problem of insufficient holding force of material alloy binders and diamond particles falling off , Shorten service life and other issues, to achieve good heat dissipation, improve service life, and prolong service life

Inactive Publication Date: 2011-10-05
JIANGSU FUNLIN SUPER HARD TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The holding force of the material alloy binder is insufficient, and the diamond particles fall off prematurely;
[0005] 2. The matrix wears quickly;
[0006] 3. The high temperature generated during processing makes diamond carbonization invalid, and the matrix becomes white and soft, which affects the opening effect and shortens the service life

Method used

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  • High-frequency induction brazed diamond drill bit
  • High-frequency induction brazed diamond drill bit
  • High-frequency induction brazed diamond drill bit

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Embodiment Construction

[0039] see Figure 1~3 , figure 1 It is a structural schematic diagram of the high-frequency induction brazing diamond drill bit of the present invention. figure 2 for figure 1 A-A cut-away diagram. image 3 for figure 1 top view. Depend on figure 1 , figure 2 and image 3 It can be seen that the high-frequency induction brazing diamond drill bit of the present invention comprises a drill bit matrix 1, and the composition of the drill bit matrix alloy is: 65 manganese steel and WC powder; There are only three, and there are three symmetrically on the other side of it) the first circular heat dissipation flute 3 with a diameter of 4mm, the second circular heat dissipation flute 4 with a diameter of 12mm, and two lengths of 29.2 mm and a third heat-dissipating flute 5 with a width of 4.7 mm; two layers of diamond particles 2 are brazed by high-frequency induction on the surface of the drill bit base body 0-15 mm away from its lower edge (the first brazing layer is 40 m...

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Abstract

The invention relates to a high-frequency induction brazed diamond drill bit. The high-frequency induction brazed diamond drill bit comprises a drill bit base body (1); tungsten and carbon (WC) powder is added into an alloy of the drill bit base body; first round heat dissipation chip removal slots (3), second round heat dissipation chip removal slots (4) and a third round heat dissipation chip removal slot (5) are formed on the drill bit base body (1); an inner layer of diamond particles and an outer layer of diamond particles are brazed on the surface, 0 to 15 millimeters away from the lower edge, of the drill bit base body (1) in a high-frequency induction manner; the granularity of the inner layer of diamond particles is 40 / 45, and the granularity of the outer layer of diamond particles is 45 / 50; and the inner layer of diamond particles and the outer layer of diamond particles are intermittently arranged on the surface of the drill bit base body in a strip manner, so a diamond working layer is formed. The high-frequency induction brazed diamond drill bit has good perforating effect, high perforating speed and long service life.

Description

technical field [0001] The invention relates to a diamond drill bit (hole drill). Specifically, it relates to a high-frequency induction brazing diamond drill bit (hole drill). It is mainly used for drilling holes of various hard and brittle materials. It belongs to the technical field of diamond tools. Background technique [0002] At present, in the field of high-temperature brazing, commonly used methods include resistance furnace heating vacuum high-temperature brazing, high-frequency induction heating brazing, and laser brazing. High-frequency induction heating brazing is a method of using the induction phenomenon of alternating magnetic field and electric field, and the eddy current effect on the workpiece in the field to heat the workpiece to melt the solder to achieve brazing. The alternating frequency of the current is above 10KHZ. Compared with other brazing methods, induction brazing has unique characteristics: fast heating speed, easy to achieve local heating,...

Claims

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Application Information

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IPC IPC(8): B23K1/002B23K1/19B23K1/20
Inventor 庄政伟
Owner JIANGSU FUNLIN SUPER HARD TOOLS
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