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3D printing manufacturing method of PDC drill body

A manufacturing method and 3D printing technology, applied in the directions of additive manufacturing, process efficiency improvement, energy efficiency improvement, etc., can solve the problems of cumbersome production, high cost, long cycle, etc., to improve the overall performance, reduce the production cost, make up for the machine Effects of defects in machining and casting processes

Inactive Publication Date: 2017-12-22
CHANGSHA YUANDAHUA INFORMATION TECH CO LTD
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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

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  • 3D printing manufacturing method of PDC drill body
  • 3D printing manufacturing method of PDC drill body

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] The schematic diagram of the PDC drill body structure in the present embodiment, 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 screw thread 1 of the PDC bit body, the shackle groove 2, the nozzle hole 3, and the scraper Wing 4, PDC cutter 5, gauge and crown 6, bit body 7, etc., use the software RP-Tools to process the 3D model of the PDC bit body in two dimensions:...

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Abstract

The invention provides a 3D printing manufacturing method of a PDC drill body. According to the technical scheme, the 3D printing manufacturing method comprises the following steps of: establishing a three-dimensional model of the PDC drill body; performing two dimensionalization treatment on the three-dimensional model; generating a corresponding laser scanning path according to the formed two-dimensional pattern; uniformly paving multiple layers of metal material powder on an additive manufacturing equipment processing platform; scanning the metal material powder on the processing platform according to the laser scanning path, and separating the PDC drill body from the surface of the processing platform by way of wire cutting; and based on the technical demand on the designed PDC drill body, performing various process treatment such as spray welding of a wear-resistant layer on the drill body, and finally forming and manufacturing the PDC drill body through flaw detection and cleaning. The 3D printing manufacturing method provided by the invention has the beneficial effects that the problem that the PDC drill body manufactured by a conventional subtractive manufacturing method is single in structural form is solved, and meanwhile, defects of conventional machining and foundry technologies are made up hugely, so that the integral performance and the manufacturing efficiency of the PDC drill body are increased, and the manufacturing cost is lowered.

Description

technical field [0001] The invention relates to an oil development drilling device, in particular to a 3D printing manufacturing method of a PDC drill bit body. Background technique [0002] In the process of oil drilling, PDC bits are widely used due to their long service life and fast drilling speed. Partial composition, the drill bit body is provided with a nozzle hole, the drill bit body is the key component of the diamond drill 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 through mold combination sintering , the other is made of round steel through forging, turning and milling, and then the cutting teeth are embedded on the drill body, which belongs to the mechanical production method of "subtractive manufacturing". These two methods have long manufacturing cycle, high cost, and welding It becomes the weak link of the drill bit, and it is difficult to realize the demand of energy red...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B22F5/00B33Y10/00B33Y80/00
CPCB22F5/00B33Y10/00B33Y80/00B22F2005/001B22F10/00B22F10/66B22F10/28B22F10/68Y02P10/25
Inventor 石一先
Owner CHANGSHA YUANDAHUA INFORMATION TECH CO LTD
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