Grid-like working layer diamond drill bit and its 3D printing manufacturing process
A diamond drill, 3D printing technology, applied in drills, process efficiency improvement, additive manufacturing, etc., can solve problems affecting the development of drilling technology, low drilling efficiency of drills, increase construction costs, etc., to improve drilling efficiency, The effect of sufficient cooling and long service life
Active Publication Date: 2018-02-06
CENT SOUTH UNIV
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Problems solved by technology
The traditional manufacturing of drill bits is done by powder metallurgy or electroplating. It is difficult to manufacture the lip surface structure of the working layer into various complex shapes that are conducive to breaking rocks. Low efficiency or short life of the drill bit will greatly increase the construction cost and affect the improvement and development of drilling technology
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Embodiment 1
[0015] Such as figure 1 , 2 , 3, grid-like working layer 1, non-working layer 2 and drill bit steel body 3 are three parts, grid-like working layer 1 is composed of working layer entities 4 and working layer voids 5 distributed in radial and circumferential directions , in the grid-like working layer, the solid thickness along the radial direction is 0.08mm, and the thickness of the interstitial body is 0.1mm; The solid thickness outside the inner diameter of the working layer and inside the outer diameter is 0.3 mm wider than the solid thickness of the middle grid part; the grid-shaped working layer impregnated block 7 is close to the two ends of the nozzle 6, and the solid thickness is wider than the solid thickness of the middle grid part 0.3mm; the grid-shaped working layer, the non-working layer and the steel body of the drill bit together constitute the whole drill bit.
[0016] Its production process is as follows:
[0017] ①Steel body and mold machining.
[0018] ②...
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Abstract
A grid-shaped working layer diamond drill bit and its 3D printing manufacturing process. The grid-shaped working layer of the present invention is composed of entities and voids distributed along the radial and circumferential directions. The grid-shaped working layer and non-working layer, drill steel The bodies together constitute the whole drill bit. The laser sintering process is used to 3D print the grid-shaped working layer on the lip surface of the non-working layer carcass. The invention reduces the contact area between the working layer and the rock mass, increases the drilling pressure, increases the cutting edge of the abrasive grains, and improves the grinding efficiency, optimizes the diamond bit crushing method for hard and extremely hard formation rocks, and eliminates the existing rock on the contact surface. In addition to elastic contact and plastic contact, there is also a strong cutting mechanical action, which greatly improves the drilling efficiency. The invention adopts intelligent 3D printing manufacturing technology, which is beneficial to improve and make up for the deficiencies in the traditional drill bit manufacturing, facilitates the manufacture of complex special-shaped working face drill bits, and improves production efficiency.
Description
technical field [0001] The invention belongs to the field of mechanical processing and drilling engineering, and in particular relates to a grid-shaped working layer diamond drill used in the drilling process and a processing and manufacturing process using 3D printing. Background technique [0002] Intelligent 3D printing technology does not need to make molds, not only can obtain complex special-shaped structure products, but also has fast production speed and high precision. The traditional manufacturing of drill bits is done by powder metallurgy or electroplating. It is difficult to manufacture the lip surface structure of the working layer into various complex shapes that are conducive to breaking rocks. Low efficiency or short life of the drill bit will greatly increase the construction cost and affect the improvement and development of the drilling technology level. Contents of the invention [0003] The purpose of the present invention is to provide a grid-shaped ...
Claims
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IPC IPC(8): E21B10/46B22F3/105B22F7/06B33Y10/00C22C32/00C22C29/08C22C26/00
CPCE21B10/46C22C26/00C22C29/005C22C29/08C22C32/0052B22F7/06B22F10/00B22F12/222B22F12/63B22F10/36B22F10/25B22F10/28Y02P10/25
Inventor 张绍和张昊旸曲飞龙曹函孙平贺舒彪谢煜吴晶晶曾月松
Owner CENT SOUTH UNIV