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Integral PCD round rodlike cutting tool and preparation method thereof

A technology of cutting tools and round rods, which is applied in the field of integral PCD round rod cutting tools and its preparation, and can solve problems such as inability to achieve surface finish, passivation of tool edges, and reduced surface accuracy of parts.

Inactive Publication Date: 2018-04-10
FUNIK ULTRAHARD MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a limit to the strengthening of scheme one, and it still cannot get rid of the status quo of low strength and poor wear resistance of the material itself after strengthening; scheme two changes the characteristics of the material itself through a flexible coating process, but the problem is caused by adding the coating. The tool edge is passivated, the precision of the machined surface of the part is reduced, and even the required surface finish cannot be achieved

Method used

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  • Integral PCD round rodlike cutting tool and preparation method thereof
  • Integral PCD round rodlike cutting tool and preparation method thereof
  • Integral PCD round rodlike cutting tool and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The present embodiment provides a kind of integral PCD circular rod-shaped cutting tool, such as figure 1 and figure 2 As shown, it includes a carbide handle 1 and an integral PCD circular rod-shaped cutter head welded on the carbide handle 1;

[0028] The integral PCD circular rod-shaped cutter head comprises a cemented carbide substrate layer 2 and a diamond layer 3 arranged on one side of the cemented carbide substrate layer 2, and the other side of the cemented carbide substrate layer 2 is connected to the The tungsten carbide handle is welded in 1 phase to form a weld 6;

[0029] The overall PCD circular rod-shaped cutter head is provided with a chip removal groove 5, and the chip removal groove 5 extends from the diamond layer 3 to the middle part of the hard alloy substrate layer 2, and is located on the diamond layer 3 The edge of the chip flute forms the cutting edge 4.

[0030] Wherein, the chip removal groove 5 is a spiral chip removal groove. The integr...

Embodiment 2

[0039] The present embodiment provides a kind of integral PCD circular rod-shaped cutting tool, such as figure 1 and image 3 As shown, it includes a carbide handle 1 and an integral PCD circular rod-shaped cutter head welded on the carbide handle 1;

[0040] The integral PCD circular rod-shaped cutter head comprises a cemented carbide substrate layer 2 and a diamond layer 3 arranged on one side of the cemented carbide substrate layer 2, and the other side of the cemented carbide substrate layer 2 is connected to the Carbide handle 1-phase welding;

[0041] The overall PCD circular rod-shaped cutter head is provided with a chip removal groove 5, and the chip removal groove 5 extends from the diamond layer 3 to the middle part of the hard alloy substrate layer 2, and is located on the diamond layer 3 The edge of the chip flute forms the cutting edge 4.

[0042] Wherein, the chip removal groove 5 in this embodiment is a spiral chip removal groove. The integral PCD circular r...

Embodiment 3

[0048] This embodiment provides an integral PCD circular rod-shaped cutting tool, the specific structure is roughly the same as that in Embodiment 2, the difference is that:

[0049] In the integral PCD circular rod-shaped cutting tool structure provided in this embodiment, the outer peripheral surface of the diamond layer is also provided with a cutting cone and a calibration thread to form an integral PCD circular rod-shaped tap.

[0050] The present invention also provides a method for preparing the above-mentioned integral PCD circular rod-shaped cutting tool, the specific steps are roughly the same as those in Example 2, the difference is that:

[0051] In this embodiment, the step of preparing the integral PCD circular rod-shaped cutter head also includes the sub-step of grinding the cutting cone and calibrating thread on the outer peripheral surface of the diamond layer by using the vitrified bond diamond grinding wheel.

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Abstract

The invention provides an integral PCD round rodlike cutting tool. The integral PCD round rodlike cutting tool comprises a hard alloy knife handle and an integral PCD round rodlike tool bit; the integral PCD round rodlike tool bit comprises a hard alloy substrate layer and a diamond layer arranged on one side of the hard alloy substrate layer; a chip removal groove is formed in the integral PCD round rodlike tool bit; and the chip removal groove extends from the diamond layer to the middle of the hard alloy substrate layer. The invention also provides a method of preparing the integral PCD round rodlike cutting tool. The method comprises the following steps: preparing a PCD compound round bar blank; preparing the integral PCD round rodlike tool bit; and carrying out welding and forming. The method can be used for preparing the integral PCD round rodlike tool bit which is complex in structure, and the processing precision of the PCD cutting tool is improved and the service life of the cutting tool is prolonged.

Description

technical field [0001] The invention belongs to mechanical processing tools, in particular to an integral PCD circular rod-shaped cutting tool and a preparation method thereof. Background technique [0002] Round rod-shaped tools (drills, taps, end mills, etc.) are widely used in machining, and play an important role in milling and drilling of parts. For a long time, due to the complex structural characteristics of round rod-shaped tools, the tool materials are usually made of alloy steel and hard alloy materials that are easy to process, but the service life of such tools is generally low, and they need to be replaced frequently during high-speed machining. Cutting the knife or increasing the loading capacity of the cutter head seriously restricts the processing efficiency and increases the cost of the equipment at the same time. Therefore, improving the service life of the circular rod-shaped cutting tool is the goal pursued by people in the field of metal cutting. At pr...

Claims

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Application Information

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IPC IPC(8): B23B51/00B23G5/00B23C5/18B23P15/32B23P15/34B23P15/52
CPCB23B51/00B23C5/18B23G5/00B23P15/32B23P15/34B23P15/52
Inventor 马宁王彬彬解亚军陈培李丙文王丽
Owner FUNIK ULTRAHARD MATERIAL
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