WO2018006562A1 - 一种孕镶金刚石钻头的3d打印模具制作方法 - Google Patents

一种孕镶金刚石钻头的3d打印模具制作方法 Download PDF

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WO2018006562A1
WO2018006562A1 PCT/CN2016/112814 CN2016112814W WO2018006562A1 WO 2018006562 A1 WO2018006562 A1 WO 2018006562A1 CN 2016112814 W CN2016112814 W CN 2016112814W WO 2018006562 A1 WO2018006562 A1 WO 2018006562A1
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drill bit
mold
diamond
manufacturing
printing
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PCT/CN2016/112814
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English (en)
French (fr)
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姚建林
冯明
付晓平
胡畔
陈立
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四川川庆石油钻采科技有限公司
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Publication of WO2018006562A1 publication Critical patent/WO2018006562A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor

Definitions

  • the invention relates to a method for manufacturing a mold, belonging to the field of mold manufacturing, and more particularly to a method for manufacturing a 3D printing mold for impregnating a diamond drill bit.
  • the impregnated diamond drill bit is widely used due to its long service life and fast drilling speed in complex layers such as high abrasiveness and interlayer.
  • the impregnated diamond drill bit is mainly composed of a threaded rod and a bit body connected with the drill pipe.
  • the bit body is sintered with pre-formed pregnant insert teeth, and the pregnant insert teeth contain small granular diamond.
  • the manufacture of impregnated diamond drill bits is mainly made by powder metallurgy and steel body sintered by a combination of molds. In the production of diamond-inlaid diamond bit molds, due to the complex structure of the impregnated diamond drill bit, the number of pregnant inserts is irregular and irregular.
  • the mold In the process of graphite mold processing, the mold is engraved by the milling machine to form the placement position of the pregnant insert, and the mold is finished after the engraving. Trimming the mold, the mold has a long manufacturing cycle, low precision, serious graphite dust pollution and high cost.
  • the design of the impregnated diamond drill bit is greatly affected by the manufacturing capacity of the processing equipment; It is difficult to arrange the pregnant teeth in the narrow space of the bit space, which causes the diamond content of the cutting component in the area to decrease, and the wear of the bit during the high-speed drilling process is severe, which leads to the failure of the drill bit, and it is difficult to realize the environmental protection and the cost of drilling.
  • the invention overcomes the deficiencies of the prior art, and provides a 3D printing mold manufacturing method for a diamond-inlaid diamond bit, which solves the technical problem that the conventional diamond-inlaid diamond bit mold is cumbersome to manufacture, high in cost, long in cycle, and low in precision.
  • the present invention adopts the following technical solutions:
  • a method for manufacturing a 3D printing mold for impregnating a diamond drill bit comprising the following steps:
  • the digital negative model of the diamond-inlaid diamond bit is obtained by reversing the processing
  • the clay mold is assembled to place the pregnant inserts, and the sintered material and the alloy are sintered to form the drill bit.
  • the sintered material is a carbide powder or a copper nickel alloy.
  • the print data is a data file in the stl format.
  • the manufacturing method of the present invention is designed to have the influence of the manufacturing capability of the manufacturing equipment and the interference of human factors, and the manufacturing precision is high.
  • the manufacturing method of the present invention can be repeatedly used, with a short manufacturing cycle and low environmental pollution.
  • Figure 1 is a front elevational view of a female mold of the present invention
  • Figure 2 is a schematic view showing the structure of a female mold of the present invention
  • Figure 3 is a rubber male mold that is turned over by a 3D printed negative mold
  • a 3D printing mold manufacturing method for a diamond-impregnated drill bit includes the following steps:
  • the digital negative model of the diamond-inlaid diamond bit is obtained by reversing the processing
  • the clay mold is assembled to place the pregnant inserts, and the sintered material and the alloy are sintered to form the drill bit.
  • the sintered material is a carbide powder or a copper nickel alloy.
  • the print data is a data file in the stl format.
  • the three-dimensional digital model of the drill bit can be designed by using three-dimensional drawing software such as NX, Pro-E, CATIA and Solidworks, and the digital negative model is processed into the data file of the required format by using Geomagic Studio, Magics and the like. .
  • the invention adopts a three-dimensional model of a diamond-impregnated drill bit--printing a bit model of a drill bit by using a 3D printing and forming technique--production of a male mold by using a rubber-turned drill bit--a step of using a male mold to convert a clay mold-mold assembly-filling a powder sintered drill bit Production of 3D printing dies.
  • the 3D printing mold manufacturing process of the impregnated diamond bit of the invention has the following advantages: 1 The design of the impregnated diamond bit is not affected by the manufacturing capability of the manufacturing equipment, and the design is convenient and fast; 2 the 3D printing technology is used to manufacture the mold with high precision and is not subject to Human factors interfere with; 3 molds can be reused, compared with the traditional mold making process, the mold can only be used once to reduce the cost; 43D printing mold process is shorter than the traditional mold manufacturing process, the production cycle is short, and the environmental pollution is small.

Abstract

一种孕镶金刚石钻头的3D打印模具制作方法，包括以下步骤：建立孕镶金刚石钻头三维数字模型；根据钻头三维数字模型进行求反处理得到孕镶金刚石钻头的数字阴模模型；将数字阴模模型通过电脑处理成3D打印机所需的打印数据；将阴模模型打印数据通过3D打印机打印成阴模模具；通过打印的阴模模具翻制孕镶金刚石钻头生产用的橡胶阳模；通过橡胶阳模翻制生产陶土模；陶土模组装安放孕镶齿，装填烧结粉料和合金烧结后钻头成型。该方法具有精度高、制作周期短的优点。

Description

一种孕镶金刚石钻头的3D打印模具制作方法 技术领域
本发明涉及一种模具制作方法，属模具制造领域，更具体的说是涉及一种孕镶金刚石钻头的3D打印模具制作方法。
背景技术
石油钻井过程中，孕镶金刚石钻头由于在高研磨性、夹层等复杂地层具有使用寿命长、钻进速度快等特性而被广泛应用。孕镶金刚石钻头主要由与钻杆连接的丝扣、钻头体组成，钻头体上烧结有预制成型的孕镶齿，孕镶齿含有小颗粒金刚石。目前，孕镶金刚石钻头制造主要采用粉末冶金与钢体经模具组合烧结而成。孕镶金刚石钻头模具制作，由于孕镶金刚石钻头结构复杂，孕镶齿多而不规则，在石墨模具加工过程中，采用铣床刻制模具，形成孕镶齿的安放位置，模具刻制完后人工修整模具，模具制作周期长、精度低、石墨粉尘污染严重、成本高，孕镶金刚石钻头设计受加工设备制造能力影响较大；进而在充分考虑了孕镶金刚石钻头包镶能力的前提下，在钻头局部空间狭窄位置难以布置孕镶齿，造成该区域切削元件金刚石含量减少，在钻头高速钻进过程磨损严重，导致钻头失效，难以实现降能环保和降低钻井成本的需求。
发明内容
本发明克服了现有技术的不足，提供了一种孕镶金刚石钻头的3D打印模具制作方法，解决了以往孕镶金刚石钻头模具制作繁琐、成本高、周期长、精度低的技术难题。
为解决上述的技术问题，本发明采用以下技术方案：
一种孕镶金刚石钻头的3D打印模具制作方法，包括以下步骤：
①建立孕镶金刚石钻头三维数字模型；
②根据钻头三维数字模型进行求反处理得到孕镶金刚石钻头的数字阴模模型；
③将数字阴模模型通过电脑软件处理成3D打印机所需的打印数据；
④将阴模模型打印数据通过3D打印机打印成阴模模具；
⑤通过打印的阴模模具翻制孕镶金刚石钻头生产用的橡胶阳模；
⑥通过橡胶阳模翻制生产陶土模；
⑦陶土模组装安放孕镶齿，装填烧结材料和合金烧结后钻头成型。
所述烧结材料为碳化物粉料或铜镍合金。
所述打印数据为stl格式的数据文件。
与现有技术相比，本发明的有益效果是：
1、本发明的制造方法设计孕镶金刚石钻头孕镶齿布局不受加工制造设备制造能力和人为因素干扰的影响，制造精度高。
2、本发明的制造方法模具可以重复使用，制作周期短及环境污染小。
附图说明
下面结合附图和具体实施方式对本发明作进一步详细说明。
图1是本发明阴模模具的主视图；
图2是本发明阴模模具的结构示意图；
图3利用3D打印的阴模翻制的橡胶阳模模具；
具体实施方式
下面结合附图对本发明作进一步的说明。本发明的实施方式包括但不限于下列实施例。
如图1-图3所示，一种孕镶金刚石钻头的3D打印模具制作方法，包括以下步骤：
⑧建立孕镶金刚石钻头三维数字模型；
⑨根据钻头三维数字模型进行求反处理得到孕镶金刚石钻头的数字阴模模型；
⑩将数字阴模模型通过电脑软件处理成3D打印机所需的打印数据；
Figure PCTCN2016112814-appb-000001
将阴模模型打印数据通过3D打印机打印成阴模模具；
Figure PCTCN2016112814-appb-000002
通过打印的阴模模具翻制孕镶金刚石钻头生产用的橡胶阳模；
Figure PCTCN2016112814-appb-000003
通过橡胶阳模翻制生产陶土模；
Figure PCTCN2016112814-appb-000004
陶土模组装安放孕镶齿，装填烧结材料和合金烧结后钻头成型。
所述烧结材料为碳化物粉料或铜镍合金。
所述打印数据为stl格式的数据文件。
本发明根据设计具体要求，可以使用NX、Pro-E、CATIA及Solidworks等三维制图软件设计钻头三维数字模型，并使用Geomagic Studio、Magics等软件将数字阴模模型处理成打印所需stl格式数据文件。
本发明通过孕镶金刚石钻头三维模型-利用3D打印成型技术打印钻头阴模模型-利用橡胶翻制钻头生产阳模模具-利用阳模翻制陶土模具-模具组装-装填粉料烧结钻头的步骤完成3D打印模具的制作。本发明孕镶金刚石钻头3D打印模具制作工艺具有以下优点：①设计孕镶金刚石钻头孕镶齿布局不受加工制造设备制造能力影响，设计方便快捷；②采用3D打印技术制造模具精度高，不受人为因素干扰；③模具可以重复使用，相较传统刻模模具制作工艺模具仅能使用1次降低了成本；④3D打印模具工艺较传统刻模制造工艺而言，制作周期短，环境污染小。
如上所述即为本发明的实施例。前文所述为本发明的各个优选实施例，各个优选实施例中的优选实施方式如果不是明显自相矛盾或以某一优选实施方 式为前提，各个优选实施方式都可以任意叠加组合使用，所述实施例以及实施例中的具体参数仅是为了清楚表述发明人的发明验证过程，并非用以限制本发明的专利保护范围，本发明的专利保护范围仍然以其权利要求书为准，凡是运用本发明的说明书及附图内容所作的等同结构变化，同理均应包含在本发明的保护范围内。

Claims (3)

  1. 一种孕镶金刚石钻头的3D打印模具制作方法，其特征在于，包括以下步骤：
    ①建立孕镶金刚石钻头三维数字模型；
    ②根据钻头三维数字模型进行求反处理得到孕镶金刚石钻头的数字阴模模型；
    ③将数字阴模模型通过电脑软件处理成3D打印机所需的打印数据；
    ④将阴模模型打印数据通过3D打印机打印成阴模模具；
    ⑤通过打印的阴模模具翻制孕镶金刚石钻头生产用的橡胶阳模；
    ⑥通过橡胶阳模翻制生产陶土模；
    ⑦陶土模组装安放孕镶齿，装填烧结材料和合金烧结后钻头成型。
  2. 根据权利要求1所述的一种孕镶金刚石钻头的3D打印模具制作方法，其特征在于，所述烧结材料为碳化物粉料和铜镍合金。
  3. 根据权利要求1所述的一种孕镶金刚石钻头的3D打印模具制作方法，其特征在于，所述打印数据为stl格式的数据文件。
PCT/CN2016/112814 2016-07-08 2016-12-29 一种孕镶金刚石钻头的3d打印模具制作方法 WO2018006562A1 (zh)

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