CN106761428B - A kind of efficient chip removal preform composite polycrystal-diamond of probing - Google Patents
A kind of efficient chip removal preform composite polycrystal-diamond of probing Download PDFInfo
- Publication number
- CN106761428B CN106761428B CN201710149094.2A CN201710149094A CN106761428B CN 106761428 B CN106761428 B CN 106761428B CN 201710149094 A CN201710149094 A CN 201710149094A CN 106761428 B CN106761428 B CN 106761428B
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- Prior art keywords
- groove
- cutting edge
- chip removal
- diamond
- cuttings
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- 239000010432 diamond Substances 0.000 title claims abstract description 60
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 59
- 239000002131 composite material Substances 0.000 title claims abstract description 45
- 238000005520 cutting process Methods 0.000 claims abstract description 83
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 18
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 239000011435 rock Substances 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 description 3
- 235000008434 ginseng Nutrition 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003079 shale oil Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
- E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
- E21B10/5673—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts having a non planar or non circular cutting face
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a kind of efficient chip removal preform composite polycrystal-diamonds of probing, including polycrystalline diamond layer and the carbide matrix supporter bonding with polycrystalline diamond layer；The polycrystalline diamond layer includes upper surface and outer fringe surface, and the juncture area of the upper surface and outer fringe surface forms the radial cutting edge tooth in center and groove for cuttings；Direction is connected and radially extends and is distributed in a ring at a certain angle for the cutting edge tooth and groove for cuttings.Structure of the invention has stronger sharpness and efficient chip removal advantage, can increase substantially drilling efficiency and prevent mud drum phenomenon, it is ensured that the stationarity of drilling platforms manipulation.
Description
Technical field
The invention belongs to super-hard compound material technical field more particularly to a kind of efficient chip removal preform plycrystalline diamond gold of probing
Hard rock composite sheet is mainly used for the fields such as oil drilling, engineering driving and mine locating.
Background technique
Diamond is considered as creeping into material and machining material preferably with the hardness of its superelevation, wearability, and plycrystalline diamond
The appearance of diamond compact (PDC) then becomes an important milestone in applications of diamond technograph.Currently, PCD
Composite sheet has used in rotary drilling-head, the first-class tool of diamond drill machine as superabrasive cutting elements, be widely used in petroleum,
The fields such as natural gas probing.With the transformation of exploration theory, innovation, unconventional oil and gas (such as shale oil, gas etc.) exploration obtains fast
Exhibition is hailed, the performance of drill bit design and its composite polycrystal-diamond that deeper bad ground uses needs constantly to be promoted, especially
It is drilling competent bed, the stratum such as tough and tensile interlayer, often because difficult drilling depth, chip removal are obstructed etc., occurs collapsing tooth or even bit freezing etc.
Serious drilling failure.
Easily occur collapsing tooth problem in view of above-mentioned extremely difficult formations drilled and drill bit, patent CN200820070865.5 provides one
Kind solves the problems, such as to cause to collapse tooth in extended surface because of crackle, and still not competent in terms of efficient chip removal.The present invention proposes one kind
Efficient chip removal preform composite polycrystal-diamond is drilled, is given using its sharp cutting edge tooth and fluent chip removal structure comprehensive
It closes and solves difficult drilling, collapses the problems such as tooth, mud drum.
Summary of the invention
It is an object of the invention to the upper surface of the polycrystalline diamond layer by changing PCD composite sheet and outer fringe surface knots
Structure, provides a kind of efficient chip removal preform composite polycrystal-diamond of probing of knife-edged, this PCD composite sheet is bored for difficult
Difficult drilling can be overcome the problems, such as, reduce and collapse tooth by visiting in stratum, avoid that the drilling failures such as mud drum occur, and improves bit life and drilling well is flat
The manipulation stationarity of platform.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of efficient chip removal preform composite polycrystal-diamond of probing comprising polycrystalline diamond layer and with plycrystalline diamond gold
The bonding hard alloy supporter of hard rock layer.Wherein, the polycrystalline diamond layer includes upper surface and outer fringe surface, it is described on
Surface and outer fringe surface are at least partly juncture area formation cutting edge tooth and groove for cuttings.
Further, the cutting edge tooth is angled with polycrystalline diamond layer outer fringe surface and is greater than or equal to 90 °.
Further, the cutting edge tooth height is not less than 0.5 mm not less than 0.3mm, radical length.
Further, the cutting edge tooth and groove for cuttings are radially extended and are distributed in a ring.
Further, the groove for cuttings is angled with polycrystalline diamond layer outer fringe surface and is greater than or equal to 90 °.
Further, chamfering is equipped between the cutting edge tooth, groove for cuttings and outer fringe surface or without chamfering.
Further, the longitudinal angle between the cutting edge tooth and groove for cuttings is less than 60 °.
Further, polycrystalline diamond layer upper surface centre, which exists, holds bits groove.
Further, appearance bits groove is rounded, rectangular etc..
Further, the appearance bits depth of groove is less than polycrystalline diamond thickness 1/10.
The invention has the benefit that the present invention in drilling drilling process, utilizes this efficient chip removal preform plycrystalline diamond gold
For hard rock composite sheet as wear-resisting cutting element, structure is there are sharp cutting edge tooth and fluent groove for cuttings or holds bits knot
Structure can reduce PCD composite sheet working region grinding heat, and reduction collapses tooth, avoids the drilling failures such as the unsmooth generation mud drum of chip removal, can be big
The manipulation stationarity of amplitude raising drilling well drilling efficiency and drilling platforms.
Detailed description of the invention
Fig. 1 is a kind of structural representation without the efficient chip removal preform composite polycrystal-diamond for holding bits structure in the present invention
Figure；
Fig. 2 is a kind of structural representation of the efficient chip removal preform composite polycrystal-diamond of band appearance bits structure in the present invention
Figure；
Fig. 3 is a kind of structural schematic diagram of the efficient chip removal preform composite polycrystal-diamond of four sword teeth；
Fig. 4 is the structural schematic diagram of the efficient chip removal preform composite polycrystal-diamond of another four sword teeth；
Fig. 5 is a kind of structural schematic diagram of the efficient chip removal preform composite polycrystal-diamond of five sword teeth；
Fig. 6 is the structural schematic diagram of the efficient chip removal preform composite polycrystal-diamond of another five sword teeth；
Fig. 7 is a kind of structural schematic diagram of the efficient chip removal preform composite polycrystal-diamond of eight sword teeth；
Fig. 8 is the structural schematic diagram of the efficient chip removal preform composite polycrystal-diamond of another eight sword teeth；
Fig. 9 is a kind of structural schematic diagram of the efficient chip removal preform composite polycrystal-diamond of ten sword teeth；
Figure 10 is the structural schematic diagram of the efficient chip removal preform composite polycrystal-diamond of another ten sword teeth；
Figure 11 is a kind of structural schematic diagram of the efficient chip removal preform composite polycrystal-diamond of 12 sword teeth；
Figure 12 is the structural schematic diagram of the efficient chip removal preform composite polycrystal-diamond of another 12 sword teeth.
Specific embodiment
For a clearer understanding of the present invention, below in conjunction with the embodiment content that the present invention is furture elucidated, but this hair
Bright content is not only limited to the following examples.Based on embodiment in the present invention, those of ordinary skill in the art are not being done
Creative work precursor is lower out obtains other all embodiments, would fall within the scope that the present invention protects.
As illustrated in fig. 1 and 2, the present invention includes polycrystalline diamond layer 100 and the hard alloy supporter bonding with it
200.The polycrystalline diamond layer 100 includes upper surface 101 and outer fringe surface 102, the upper surface 101 and outer fringe surface 102
Cutting edge tooth 103 and groove for cuttings 104 are formed at least partly juncture area.In addition, as illustrated with reference to fig. 2, the plycrystalline diamond gold
There are hold to consider groove 105 to be worth doing in hard rock layer upper surface centre.
Embodiment one
It as shown in Figure 3 and Figure 4, is to have the efficient chip removal preform polycrystalline diamond of four sword teeth of similar structure compound
Piece.Refering to what is shown in Fig. 3, the cutting edge tooth 103 of this four swords tooth composite sheet radially extends length 1.87mm, height 1.23mm, with
The angle of outer fringe surface 102 is 90 °；And groove for cuttings 104 is connected with 22 ° with cutting edge tooth 103 and is distributed in a ring, with outer rim
The angle on surface 102 is 112 °.Chamfering is 0.35 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.Ginseng
It examines shown in Fig. 4, the cutting edge tooth 103 of this four swords tooth composite sheet radially extends length 1.83mm, height 1.23mm, with outer rim table
The angle in face 102 is 99.5 °；And groove for cuttings 104 is connected with 33.2 ° with cutting edge tooth 103 and is distributed in a ring, with outer rim table
The angle in face 102 is 123.2 °.Chamfering is 0.35 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.
Embodiment two
It as shown in Figure 5 and Figure 6, is to have the efficient chip removal preform polycrystalline diamond of five sword teeth of similar structure compound
Piece.Refering to what is shown in Fig. 5, the cutting edge tooth 103 of this five swords tooth composite sheet radially extends length 1.91mm, height 1.23mm, with
The angle of outer fringe surface 102 is 90 °；And groove for cuttings 104 is connected with 20 ° with cutting edge tooth 103 and is distributed in a ring, with outer rim
The angle on surface 102 is 110 °.Chamfering is 0.35 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.Ginseng
It examines shown in Fig. 6, the cutting edge tooth 103 of this five swords tooth composite sheet radially extends length 1.87mm, height 1.23mm, with outer rim table
The angle in face 102 is 100.1 °；And groove for cuttings 104 is connected with 35.6 ° with cutting edge tooth 103 and is distributed in a ring, with outer rim
The angle on surface 102 is 125.6 °.Chamfering is 0.35 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.
Efficient chip removal preform composite polycrystal-diamond provided by embodiment one and embodiment two is suitable for extremely hard rock
The probing of the bad grounds such as layer, tough and tensile interlayer, especially extremely hard rock stratum.This multiple-cutting-edge toothing also greatly improves the utilization rate of composite sheet
And reduce drilling cost etc..
Embodiment three
It as shown in Figure 7 and Figure 8, is to have the efficient chip removal preform polycrystalline diamond of eight sword teeth of similar structure compound
Piece.Refering to what is shown in Fig. 7, the cutting edge tooth 103 of this eight swords tooth composite sheet radially extends length 1.78mm, height 1.23mm, with
The angle of outer fringe surface 102 is 90 °；And groove for cuttings 104 is connected with 23 ° with cutting edge tooth 103 and is distributed in a ring, with outer rim
The angle on surface 102 is 113 °.Chamfering is 0.40 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.Ginseng
It examines shown in Fig. 8, the cutting edge tooth 103 of this eight swords tooth composite sheet radially extends length 1.76mm, height 1.23mm, with outer rim table
The angle in face 102 is 99.3 °；And groove for cuttings 104 is connected with 32.8 ° with cutting edge tooth 103 and is distributed in a ring, with outer rim table
The angle in face 102 is 122.8 °.Chamfering is 0.40 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.
Example IV
It is to have the efficient chip removal preform polycrystalline diamond of ten sword teeth of similar structure multiple with reference to shown in attached drawing 9,10
Close piece.Refering to what is shown in Fig. 9, the cutting edge tooth 103 of this ten swords tooth composite sheet radially extends length 1.69mm, height 1.23mm,
Angle with outer fringe surface 102 is 90 °；And groove for cuttings 104 is connected with 25 ° with cutting edge tooth 103 and is distributed in a ring, and it is outer
The angle on edge surface 102 is 115 °.Chamfering is 0.40 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.
It is and outer refering to what is shown in Fig. 10, the cutting edge tooth 103 of this ten swords tooth composite sheet radially extends length 1.68mm, height 1.23mm
The angle on edge surface 102 is 99.1 °；And groove for cuttings 104 is connected with 36.5 ° with cutting edge tooth 103 and is distributed in a ring, and it is outer
The angle on edge surface 102 is 126.5 °.Chamfering is 0.40 between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102
mm。
Embodiment five
It as is illustrated by figs. 11 and 12, is the efficient chip removal preform polycrystalline diamond with 12 sword teeth of similar structure
Composite sheet.With reference to shown in Figure 11, the cutting edge tooth 103 of this 12 sword tooth composite sheet radially extends length 1.72mm, height
1.23mm, the angle with outer fringe surface 102 are 90 °；And groove for cuttings 104 is connected with 26 ° with cutting edge tooth 103 and divides in a ring
Cloth, the angle with outer fringe surface 102 are 116 °.Chamfering is between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102
0.40 mm.With reference to shown in Figure 12, the cutting edge tooth 103 of this 12 sword tooth composite sheet radially extends length 1.70mm, height
1.23mm, the angle with outer fringe surface 102 are 99.7 °；And groove for cuttings 104 is connected with 38.3 ° in ring with cutting edge tooth 103
Shape distribution, the angle with outer fringe surface 102 are 128.3 °.Between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102
Chamfering is 0.40 mm.
Efficient chip removal preform composite polycrystal-diamond provided by embodiment three, example IV and embodiment five is applicable in
In the probing of the bad grounds such as extremely hard rock stratum, tough and tensile interlayer, especially tough and tensile interlayer and deeper bad ground.This multiple-cutting-edge toothing
It can solve stratum difficulty drilling, machine fast the problems such as mud drum occurs slowly and easily.
The above description is only a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from technical solution of the present invention, several modifications or equivalent substitute can be also made, this is accordingly to be regarded as the present invention
Protection category.
Claims (6)
1. a kind of efficient chip removal preform composite polycrystal-diamond of probing, including polycrystalline diamond layer and and polycrystalline diamond
The bonding hard alloy substrate of layer, it is characterised in that: the polycrystalline diamond layer includes upper surface and outer fringe surface, described
Upper surface and the juncture area of outer fringe surface form the radial cutting edge tooth in center and groove for cuttings；The cutting edge tooth
It radially extends with groove for cuttings and is distributed in a ring；The groove for cuttings and polycrystalline diamond layer outer fringe surface it is angled and
More than or equal to 90 °；Longitudinal angle between the cutting edge tooth and groove for cuttings is less than 60 °；On the polycrystalline diamond layer
Centre of surface position, which exists, holds bits groove.
2. the efficient chip removal preform composite polycrystal-diamond of a kind of probing according to claim 1, it is characterised in that: institute
State cutting edge tooth and polycrystalline diamond layer outer fringe surface it is angled and be greater than or equal to 90 °.
3. the efficient chip removal preform composite polycrystal-diamond of a kind of probing according to claim 1, it is characterised in that: institute
The cutting edge tooth height stated is not less than 0.3mm, and radical length is not less than 0.5 mm.
4. the efficient chip removal preform composite polycrystal-diamond of a kind of probing according to claim 1, it is characterised in that: institute
Chamfering is equipped between cutting edge tooth, groove for cuttings and the outer fringe surface stated or without chamfering.
5. the efficient chip removal preform composite polycrystal-diamond of a kind of probing according to claim 1, it is characterised in that: institute
The appearance bits groove stated is rounded or rectangular.
6. the efficient chip removal preform composite polycrystal-diamond of a kind of probing according to claim 1, it is characterised in that: institute
The appearance bits depth of groove stated is greater than polycrystalline diamond thickness 1/10.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149094.2A CN106761428B (en) | 2017-03-14 | 2017-03-14 | A kind of efficient chip removal preform composite polycrystal-diamond of probing |
| PCT/CN2017/105474 WO2018166191A1 (en) | 2017-03-14 | 2017-10-10 | Drilling pre-formed polycrystalline diamond compact with efficient debris removal function |
| US16/297,718 US20190203539A1 (en) | 2017-03-14 | 2019-03-11 | Polycrystalline diamond compact |
| US17/170,869 US11873684B2 (en) | 2017-03-14 | 2021-02-08 | Polycrystalline diamond compact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149094.2A CN106761428B (en) | 2017-03-14 | 2017-03-14 | A kind of efficient chip removal preform composite polycrystal-diamond of probing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761428A CN106761428A (en) | 2017-05-31 |
| CN106761428B true CN106761428B (en) | 2019-04-23 |
Family
ID=58961493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710149094.2A Active CN106761428B (en) | 2017-03-14 | 2017-03-14 | A kind of efficient chip removal preform composite polycrystal-diamond of probing |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20190203539A1 (en) |
| CN (1) | CN106761428B (en) |
| WO (1) | WO2018166191A1 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11873684B2 (en) * | 2017-03-14 | 2024-01-16 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact |
| CN106761428B (en) * | 2017-03-14 | 2019-04-23 | 河南四方达超硬材料股份有限公司 | A kind of efficient chip removal preform composite polycrystal-diamond of probing |
| CN207673290U (en) * | 2017-11-15 | 2018-07-31 | 河南四方达超硬材料股份有限公司 | Complicated hard rock stratum probing high impact-resistant type on-plane surface composite polycrystal-diamond |
| US10577870B2 (en) * | 2018-07-27 | 2020-03-03 | Baker Hughes, A Ge Company, Llc | Cutting elements configured to reduce impact damage related tools and methods—alternate configurations |
| USD924949S1 (en) | 2019-01-11 | 2021-07-13 | Us Synthetic Corporation | Cutting tool |
| CN111764829A (en) * | 2019-04-01 | 2020-10-13 | 成都百施特金刚石钻头有限公司 | Polycrystalline diamond compact for plastic stratum |
| GB201907976D0 (en) * | 2019-06-04 | 2019-07-17 | Element Six Uk Ltd | A cutting element and methods of making same |
| CN110500039A (en) | 2019-07-10 | 2019-11-26 | 河南四方达超硬材料股份有限公司 | Polycrystalline diamond compact with extension |
| US11208849B2 (en) | 2019-11-04 | 2021-12-28 | National Oilwell DHT, L.P. | Drill bit cutter elements and drill bits including same |
| CN115038852A (en) | 2020-01-09 | 2022-09-09 | 斯伦贝谢技术有限公司 | Cutting element with non-planar face for improved cutting efficiency and durability |
| CA3165503A1 (en) * | 2020-02-05 | 2021-08-12 | Baker Hughes Oilfield Operations Llc | Cutting element with improved mechanical efficiency |
| US20230417109A1 (en) * | 2020-11-24 | 2023-12-28 | Schlumberger Technology Corporation | Pdc cutter with enhanced performance and durability |
| USD1026979S1 (en) | 2020-12-03 | 2024-05-14 | Us Synthetic Corporation | Cutting tool |
| USD1026980S1 (en) | 2021-10-14 | 2024-05-14 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised surface and groove therein |
| USD1006073S1 (en) | 2021-10-14 | 2023-11-28 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised surface sloping to a peripheral extension |
| USD997219S1 (en) | 2021-10-14 | 2023-08-29 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a double-layer structure |
| USD1006074S1 (en) | 2021-10-14 | 2023-11-28 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised triangular structure |
| USD1026981S1 (en) | 2021-10-14 | 2024-05-14 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a tripartite raised surface |
| USD1011395S1 (en) * | 2021-12-01 | 2024-01-16 | Element Six (Uk) Limited | Friction stir welding tool assembly |
| CA216752S (en) * | 2021-12-01 | 2023-10-12 | Element Six Uk Ltd | Part of a welding machine |
| JP1758866S (en) * | 2021-12-01 | 2023-12-05 | welding machine parts | |
| USD1004649S1 (en) * | 2022-05-24 | 2023-11-14 | Element Six (Uk) Limited | Friction stir welding tool assembly |
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- 2017-03-14 CN CN201710149094.2A patent/CN106761428B/en active Active
- 2017-10-10 WO PCT/CN2017/105474 patent/WO2018166191A1/en active Application Filing
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2019
- 2019-03-11 US US16/297,718 patent/US20190203539A1/en not_active Abandoned
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| CN205778558U (en) * | 2016-05-30 | 2016-12-07 | 成都百施特金刚石钻头有限公司 | Ridged cutting tooth |
| CN206693924U (en) * | 2017-03-14 | 2017-12-01 | 河南四方达超硬材料股份有限公司 | The efficient chip removal preform composite polycrystal-diamond of one kind probing |
Also Published As
| Publication number | Publication date |
|---|---|
| US20190203539A1 (en) | 2019-07-04 |
| WO2018166191A1 (en) | 2018-09-20 |
| CN106761428A (en) | 2017-05-31 |
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