CN113290720B - Cutting method of diamond with radian and diamond - Google Patents

Cutting method of diamond with radian and diamond Download PDF

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Publication number
CN113290720B
CN113290720B CN202110496885.9A CN202110496885A CN113290720B CN 113290720 B CN113290720 B CN 113290720B CN 202110496885 A CN202110496885 A CN 202110496885A CN 113290720 B CN113290720 B CN 113290720B
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diamond
long side
arc
processed
cutting
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CN113290720A (en
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陈晓燕
何泽华
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Shanghai Yu Garden Jewelry Fashion Group Co ltd
Shenzhen Yichai Fangyuan Technology Co ltd
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Guangji Diamond Shanghai Co ltd
Shanghai Yu Garden Jewelry Fashion Group Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/26—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding workpieces with arcuate surfaces, e.g. parts of car bodies, bumpers or magnetic recording heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Abstract

The invention discloses a cutting method of a diamond with radian and the diamond, comprising the following steps: s1: providing a princess square cut diamond to be processed, wherein the waist of the diamond to be processed is provided with four rectangular long side surfaces which are connected with each other, the long side surfaces are planes, and one corner is defined between every two adjacent long side surfaces; s2: selecting a long side surface, and removing materials at the long side surface to form an arc surface sunken towards the center of the diamond to be processed on the long side surface; s3: and repeating the step S2 until the four long side surfaces form an arc-shaped surface, thereby obtaining the finished product diamond. Compared with the traditional princess square cut type cutting process, the cutting process has more cut facets, the transmission, reflection and refraction times of light rays passing through the diamond are increased, the brightness and the fire are improved to a certain extent, and the process value of the diamond is increased.

Description

Cutting method of diamond with radian and diamond
Technical Field
The invention relates to the technical field of diamonds, in particular to a cutting method of a diamond with a radian and the diamond obtained by the cutting method.
Background
As the diamond processing industry develops, the cutting precision of the diamond is required to be higher and higher, and different cutting shapes and techniques of the diamond are gradually disclosed. However, the currently used diamond cuts include round multi-facet cuts, princess square cuts, oval cuts, love heart cuts, and ledean cuts, which cannot stay in the conventional form as the demand for diamonds increases, so that the nine-heart one-flower, ten-heart ten-arrow, and plum blossom drill have been developed in hundreds of years, but such cuts mainly change the cut surface inside the form and do not change much from the whole body. Taking blue flame as an example, the diamond has 89 cutting surfaces, 32 surfaces more than that of a standard round drill, the aspect ratio is 50-65%, the full depth ratio is 65-72%, the crown height ratio is 12-14%, the pavilion depth ratio is 47-54%, and the waist thickness ratio is 2-6.5%. The round cut is changed into an octagon through cutting, so that light rays enter the waist edges and are refracted by the lower waist surface stroke to form unique fire colors, but the overall diamond shape is still similar to a round shape and is not broken through greatly.
With the improvement of living standard of people, diamond jewelry is widely used. The quality of diamonds is evaluated mainly from four aspects: color (Colour), clarity (Clarity), weight (Carat), cut (Cut) are not changeable because color, clarity, weight are properties of the diamond itself as it is formed. With the continuous development of cutting technology and the fact that consumers are not satisfied with traditional cutting of diamonds, new cutting can give diamonds better quality embodiment and value improvement, and satisfy better design works.
Disclosure of Invention
In view of the above, the present invention is directed to a method for cutting a diamond with a curvature.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for cutting a diamond with a radian, comprising the following steps:
s1: providing a princess square cut diamond to be processed, wherein the waist of the diamond to be processed is provided with four rectangular long side surfaces which are connected with each other, the long side surfaces are planes, and one corner is defined between every two adjacent long side surfaces;
s2: selecting one long side surface, and removing the material at the position of the long side surface to form an arc surface sunken towards the center of the diamond to be processed;
s3: and repeating the step S2 until the four long side surfaces form the arc-shaped surface, so as to obtain the finished product diamond.
The method for cutting the diamond with the radian, wherein the step S2 comprises the following steps:
s2.1: roughly cutting the long side surface, and removing partial material of the diamond to be processed, which is close to the long side surface, from the long side surface to the center of the diamond to be processed so as to form a roughly cut waist surface near the original position of the long side surface, wherein a first distance and a second distance are respectively reserved between the two ends of the roughly cut waist surface and the corners at the two ends of the long side surface;
s2.2: and finely cutting and finishing the rough cutting waist surface to enable the rough cutting waist surface to form the arc surface, wherein two ends of the arc surface are respectively flush with the angle.
The method for cutting the diamond with the radian, wherein the step S2 further comprises the following steps:
s2.3: and polishing the arc-shaped surface.
In the method for cutting the diamond with the radian, in the S2.1, rough cutting is performed through laser; in S2.2, fine cutting and trimming are performed by a grinding disc.
In the method for cutting a diamond with a radian, a part of the crown of the diamond to be processed, which is close to each long side surface, is provided with a trapezoidal surface, a long side of each trapezoidal surface shares a molded line with one long side surface, a short side of each trapezoidal surface faces to the center of the diamond to be processed, and a base angle of each trapezoidal surface forms a part of the angle.
In the method for cutting the diamond with the radian, the arc top of the arc-shaped surface is positioned inside the trapezoidal surface.
In the method for cutting the diamond with the radian, the arc top of the arc-shaped surface is tangent to the short side of the trapezoidal surface.
In the method for cutting the diamond with the radian, the trapezoidal surface is cut into the first surface and the second surface which are connected by the arc surface, the first surface and the second surface are symmetrically arranged, and the first surface and the second surface are respectively provided with two bevel edges with included angles of obtuse angles and an arc edge for connecting the two bevel edges.
A diamond obtained by the method for cutting a diamond with a radian according to any one of the above.
The diamond, wherein the crown of said diamond has 25 facets, the pavilion has 40 facets, and the girdle has 4 said facets.
Due to the adoption of the technology, compared with the prior art, the invention has the following positive effects:
(1) Compared with the traditional princess square cut type cutting process, the cutting process has more cut facets, the transmission, reflection and refraction times of light rays passing through the diamond are increased, the brightness and the fire are improved to a certain extent, and the process value of the diamond is increased.
(2) The invention has the star burst-shaped diamond outer contour line, reduces the weak edge part of the cut of the princess square cut, and concentrates the refracted light to the middle part of the diamond to form a shining star burst-shaped brilliant burst.
(3) The star burst shaped diamond outline line of the invention is composed of four arcs, and the line is beautiful and smooth.
Drawings
FIG. 1 is a schematic view of a diamond to be cut according to the method of the present invention for cutting a diamond with a curvature.
FIG. 2 is a schematic diagram of rough cutting of a diamond with a curvature according to the present invention.
FIG. 3 is a schematic diagram of the fine cut of the method of cutting a diamond with a curvature according to the present invention.
Fig. 4 is a schematic diagram of the crown of finished diamond in S3 of the method for cutting diamond with radian according to the present invention.
FIG. 5 is a schematic bottom view of a diamond product of the method of cutting a diamond with a curvature according to the present invention.
FIG. 6 is a schematic side view of a diamond product of the method of cutting a diamond with a radius according to the present invention.
Fig. 7 is a perspective view of a diamond product of the method of cutting a diamond with a curvature according to the present invention.
In the drawings: 1. a long side surface; 11. roughly cutting waist surface; 12. an arc-shaped surface; 2. an angle; 3. removing the structure; 31. a bevel; 4. a trapezoidal surface; 5. a first side; 6. a second face; a. a first distance; b. a second distance.
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Fig. 1 is a schematic view of a diamond to be cut according to the cutting method of the present invention, fig. 2 is a schematic view of rough cutting, fig. 3 is a schematic view of fine cutting, fig. 4 is a schematic view of crown of a finished diamond in S3 of the cutting method of the present invention, fig. 5 is a schematic view of bottom of the finished diamond according to the cutting method of the present invention, fig. 6 is a schematic view of side of the finished diamond according to the cutting method of the present invention, fig. 7 is a schematic view of perspective of the finished diamond according to the cutting method of the present invention, and fig. 1 to 7 show a preferred embodiment of the cutting method of the curved diamond, including:
s1: providing a princess square cut diamond to be processed, wherein the waist of the diamond to be processed is provided with four rectangular long side surfaces 1 which are connected with each other, the long side surfaces 1 are planes, and a corner 2 is defined between every two adjacent long side surfaces 1;
s2: selecting a long side face 1, and removing materials at the position of the long side face 1 to form an arc-shaped face 12 which is sunken towards the center of the diamond to be processed on the long side face 1;
s3: and repeating the step S2 until the four long side surfaces 1 form an arc-shaped surface 12 to obtain the finished product diamond.
Further, as a preferred embodiment, wherein S2 includes:
s2.1: roughly cutting the long side face 1, and removing part of the material of the diamond to be processed, which is close to the long side face 1, from the direction from the long side face 1 to the center of the diamond to be processed so as to form a roughly cut waist face 11 near the position of the original long side face 1, wherein a first distance a and a second distance b are respectively arranged between two ends of the roughly cut waist face 11 and the corners 2 at two ends of the long side face 1;
s2.2: and finely cutting and finishing the rough cut waist surface 11 to enable the rough cut waist surface 11 to form an arc surface 12, wherein two ends of the arc surface 12 are respectively flush with the angle 2.
Further, as a preferred embodiment, wherein, S2 further includes:
s2.3: the arcuate face 12 is polished.
Further, as a preferred embodiment, in S2.1, rough cutting is performed by laser; in S2.2, fine cutting and trimming are performed by a grinding disc.
Further, in a preferred embodiment, in S2, the diamond to be processed forms a removing structure 3 (i.e. a space similar to a groove) at the removed part of the material, the removing structure 3 is in an obtuse triangle or other similar shape when viewed from the crown of the diamond to be processed to the base tip direction of the diamond to be processed, and two corners of the removing structure 3 form a first distance a and a second distance b with corners of two ends of the long side 1 respectively.
Further, in a preferred embodiment, further grinding reduces both the first distance a and the second distance b to 0, i.e., further grinding causes the removal structure 3 to form an arc-shaped surface, and causes both ends of the removal structure 3 to approach the corners 2 gradually until flush/coincident, eventually forming the arc-shaped surface 2.
It should be noted that the obtuse triangle shape of the removing structure 3 is mainly used to refer to the general shape of the part, and not to a strict obtuse triangle, and since the diamond size is usually very small, the inclined surface 31 of the removing structure 3 is often an irregular rough surface, and may be a sawtooth surface, a curved surface or the like even in a microscopic level according to the grinding precision.
Of course, the removal structure 3 may also be a smaller arc, arch, trapezoid, etc., as long as the size of the removal structure 3 falls within the range of the arc-shaped surface 12 to be finally formed by grinding.
In other words, the main purpose of rough cutting is to remove material quickly, and the main purpose of fine cutting is to perform precise grinding and forming on the basis of rough cutting.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the invention, the crown of the diamond to be processed has a trapezoidal surface 4 near each long side 1, the long side of each trapezoidal surface 4 shares a profile with a long side 1, the short side of each trapezoidal surface 4 faces the center of the diamond to be processed, and the base angle of each trapezoidal surface 4 forms a part of one corner 2.
In a further embodiment of the invention, the arc tips of the arc-shaped faces 12 are located inside the trapezoidal faces 4.
In a further embodiment of the invention the arc tips of the arc-shaped faces 12 are tangent to the short sides of the trapezoidal faces 4.
In a further embodiment of the invention, the arc apex of the arc-shaped surface 12 and the short side of the trapezoidal surface 4 are tangent to the midpoint of the short side of the trapezoidal surface 4.
In a further embodiment of the present invention, the curved surface 12 cuts the trapezoidal surface 4 into a first surface 5 and a second surface 6 which are connected, the first surface 5 and the second surface 6 are symmetrically arranged, and each of the first surface 5 and the second surface 6 has two oblique sides with an obtuse angle and an arc side connecting the two oblique sides.
Thus, the 61-facet cut of the original princess square ultimately results in the 65-facet cut of the present invention, with 25 facets in the crown and 40 facets in the pavilion.
Of course, in a state where the arc top of the arc-shaped surface 12 is not tangent to the short side of the trapezoidal surface 4 but falls inside the trapezoidal surface 4, the crown portion still maintains 21 tangent planes, and the pavilion portion has 40 tangent planes. In such an embodiment, a certain starburst effect can also be created.
In the original 61-face princess square cut, the trapezoidal face 4 is closest to the edge, and the middle of the lower base (i.e., the longer base) of the trapezoidal face 4 is farther from the corner 2, so that it refracts and reflects light weakly. After the cutting according to the present invention, firstly the area of the trapezoidal face 4 is reduced, and secondly the trapezoidal face 4 is divided into two first faces 5 and second faces 6, the reflected light and refracted light of which are enhanced and more concentrated toward the center of the diamond.
Therefore, the diamond obtained by the cutting method of the invention has starburst-shaped outer contour, and has starburst-shaped reflected light and refracted light, namely, the center and four corners of the diamond have better brightness and fire color.
In a further embodiment of the invention, there is provided a diamond obtained by the method for cutting a diamond with a radian.
In a further embodiment of the invention, the crown of the diamond has 25 facets, the pavilion has 40 facets, and the girdle has 4 arc facets.
In a further embodiment of the invention, the diamond has four corners angled at 60-80 °. The requirement of the integral shape of the starburst shape is met, and meanwhile, the required structure for inlaying can also be met.
In a further embodiment of the invention, the diamond has a radius of arcuate face 12 of 5-15mm.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims (6)

1. A method of cutting a diamond having a curvature, comprising:
s1: providing a princess square cut diamond to be processed, wherein the waist of the diamond to be processed is provided with four rectangular long side surfaces which are connected with each other, the long side surfaces are planes, and one corner is defined between every two adjacent long side surfaces;
s2: selecting one long side surface, and removing the material at the position of the long side surface to form an arc surface sunken towards the center of the diamond to be processed;
s3: repeating the step S2 until the four long side surfaces form the arc-shaped surface to obtain a finished product diamond;
a trapezoidal surface is arranged at the position, close to each long side surface, of the crown part of the diamond to be processed, the long side of each trapezoidal surface shares a molded line with one long side surface, the short side of each trapezoidal surface faces the center of the diamond to be processed, and the base angle of each trapezoidal surface forms a part of one angle;
the arc top of the arc-shaped surface is tangent to the short edge of the trapezoidal surface;
the trapezoidal surface is cut into a first surface and a second surface which are connected by the arc-shaped surface, the first surface and the second surface are symmetrically arranged, and the first surface and the second surface are both provided with two bevel edges with an obtuse included angle and an arc edge connecting the two bevel edges;
in S2, the diamond to be processed forms a removing structure at the position of the removed part of the material, two corner parts of the removing structure form a first distance and a second distance with the corners at two ends of the long side surface respectively, the diamond to be processed is further polished to enable the removing structure to form an arc-shaped surface, and two ends of the removing structure are enabled to approach the corners gradually until the two ends are flush or overlapped to form the arc-shaped surface.
2. A method of cutting a diamond having a radius, comprising:
s1: providing a princess square cut diamond to be processed, wherein the waist of the diamond to be processed is provided with four rectangular long side surfaces which are connected with each other, the long side surfaces are planes, and one corner is defined between every two adjacent long side surfaces;
s2: selecting one long side surface, and removing the material at the position of the long side surface to form an arc surface sunken towards the center of the diamond to be processed;
s3: repeating the step S2 until the four long side surfaces form the arc-shaped surface to obtain a finished product diamond;
a trapezoidal surface is arranged at the position, close to each long side surface, of the crown of the diamond to be processed, the long side of each trapezoidal surface shares a molded line with the long side surface, the short side of each trapezoidal surface faces the center of the diamond to be processed, and the base angle of each trapezoidal surface forms a part of one angle;
the arc top of the arc-shaped surface is tangent to the short edge of the trapezoidal surface;
the trapezoidal surface is cut into a first surface and a second surface which are connected by the arc-shaped surface, the first surface and the second surface are symmetrically arranged, and the first surface and the second surface are both provided with two bevel edges with an obtuse included angle and an arc edge connecting the two bevel edges;
the S2 comprises the following steps:
s2.1: roughly cutting the long side surface, and removing partial material of the diamond to be processed, which is close to the long side surface, from the long side surface to the center of the diamond to be processed so as to form a roughly cut waist surface near the original position of the long side surface, wherein a first distance and a second distance are respectively reserved between the two ends of the roughly cut waist surface and the corners at the two ends of the long side surface;
s2.2: and finely cutting and trimming the rough cut waist surface to enable the rough cut waist surface to form the arc-shaped surface, wherein two ends of the arc-shaped surface are respectively flush with the corners.
3. The method of claim 2, wherein said S2 further comprises:
s2.3: and polishing the arc-shaped surface.
4. The method of claim 3, wherein in said S2.1, rough cutting is performed by laser; in S2.2, fine cutting and trimming are performed by a grinding disc.
5. A diamond obtained by the method of cutting a diamond with a curvature as claimed in any one of claims 1 to 4.
6. The diamond of claim 5 wherein said diamond has 25 facets in the crown, 40 facets in the pavilion, and 4 said facets in the girdle.
CN202110496885.9A 2021-05-07 2021-05-07 Cutting method of diamond with radian and diamond Active CN113290720B (en)

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Publication number Priority date Publication date Assignee Title
JP4302964B2 (en) * 2002-11-01 2009-07-29 株式会社ほほえみブレインズ Quadrilateral brilliant cut diamond
CN101462311B (en) * 2007-12-19 2012-10-10 广州柏志钻石有限公司 Method for processing diamond
FR3028725B1 (en) * 2014-11-24 2017-01-13 Vuitton Louis Sa SIZED GEM AND ARTICLE COMPRISING SUCH A GEM
US20160309860A1 (en) * 2015-04-27 2016-10-27 Yoram Ghassabian More stable princess cut diamond
EP3378346B1 (en) * 2017-03-21 2023-01-18 Omega SA Stone and method for manufacturing same
CN207100736U (en) * 2017-08-29 2018-03-16 杨金帮 Novel square cuts diamond
CN108851399B (en) * 2018-09-21 2020-03-31 恒信玺利实业股份有限公司 Diamond

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Effective date of registration: 20240228

Address after: Top floor attic, 58 Ninghui Road, Huangpu District, Shanghai, 200010

Patentee after: Shanghai Yu Garden jewelry Fashion Group Co.,Ltd.

Country or region after: China

Patentee after: Shenzhen Yichai Fangyuan Technology Co.,Ltd.

Address before: 200001 attic, top floor, 58 Ninghui Road, Huangpu District, Shanghai

Patentee before: Shanghai Yu Garden jewelry Fashion Group Co.,Ltd.

Country or region before: China

Patentee before: Guangji diamond (Shanghai) Co.,Ltd.