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3D (3-dimnesional) printing manufacturing method for PDC (primary domain controller) drill bit body

A manufacturing method and 3D printing technology, applied in the direction of improving process efficiency, improving energy efficiency, etc., can solve the problems of cumbersome production, high cost, long cycle, etc., to improve overall performance, reduce production cost, and make up for machining and casting. The effect of defects in craftsmanship

Inactive Publication Date: 2015-02-18
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a 3D printing manufacturing method for a PDC bit body in view of the above-mentioned defects in the prior art, so as to overcome the problems of cumbersome production, high cost and long cycle time of the traditional PDC bit body

Method used

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  • 3D (3-dimnesional) printing manufacturing method for PDC (primary domain controller) drill bit body
  • 3D (3-dimnesional) printing manufacturing method for PDC (primary domain controller) drill bit body

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specific Embodiment

[0021] The structure diagram of the PDC bit body in this embodiment, such as figure 1 As shown, the specific operation steps are as follows figure 2 Shown. According to the specific requirements of the design, use 3D drawing software such as AutoCAD, Unigraphics NX, Pro-E or CATIA to design the overall 3D model of the PDC bit body, including the thread 1, shackle groove 2, nozzle hole 3, scraper of the PDC bit body Wing 4, PDC cutting teeth 5, gauge and crown 6, bit body 7, etc., use the software RP-Tools to perform two-dimensional processing on the 3D model of the PDC bit body:

[0022] That is, the structure is cut into a series of two-dimensional graphic layers with a layer thickness of 0.01 μm in the Z-axis direction, and then the series of two-dimensional graphics are imported into the software EOS PSW3.5, which automatically calculates the two-dimensional layer of each layer according to the image The laser scanning path and use parameters of the graphics, and then spread...

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Abstract

The invention relates to a 3D (3-dimnesional) printing manufacturing method for a PDC (primary domain controller) drill bit body. The method has the technical scheme of comprising the following steps that a 3D model of the PDC drill bit body is built; the 3D model is subjected to 2D (2-dimnesional) processing; a corresponding laser scanning path is generated according to a formed 2D pattern; multiple layers of metal material powder is uniformly paved on a material increasing manufacturing equipment platform; metal material powder on the processing platform is scanned according to the laser scanning path; the PDC drill bit body is separated from the surface of the processing platform in a line cutting mode; the drill bit body is subjected to various process processing such as wear-resistant layer spraying and welding on the drill bit body by using the technical requirement of the designed PDC drill bit body as the criterion; flaw detection and cleaning are carried out, and finally, the PDC drill bit body after the manufacturing completion is formed. The 3D printing manufacturing method has the beneficial effects that the problem of single structural form of the PDC drill bit body manufactured by adopting a traditional material decreasing manufacturing method is solved, meanwhile, the defects of the traditional machining and casting process are greatly overcome, the integral performance and the manufacturing efficiency of the PDC drill bit are improved, and the manufacturing cost is reduced.

Description

Technical field [0001] The invention relates to a petroleum development drilling device, in particular to a 3D printing manufacturing method of a PDC bit body. Background technique [0002] In the process of oil drilling, PDC bit is widely used because of its long service life and fast drilling speed. The PDC bit body is mainly composed of a thread connected to the drill pipe, a bit body and a blade welded to the bit body. Part of the composition, the bit body is provided with a nozzle hole, the bit body is a key part of the diamond bit. At present, there are two main methods for the manufacture of the PDC bit body. One is to use powder metallurgy and steel body sintered by mold combination , The other is made by forging, turning and milling from round steel, and then inserting the cutting teeth on the bit body. It belongs to the mechanical production method of "subtractive manufacturing". These two methods have long manufacturing cycles, high costs, and welding As the weak ...

Claims

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Application Information

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IPC IPC(8): B22F3/105B22F3/115
CPCY02P10/25
Inventor 王明波孙晓东李罗鹏
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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