CN113815130A - Oblique tooth circular hole groove laser welding saw blade and preparation method thereof - Google Patents
Oblique tooth circular hole groove laser welding saw blade and preparation method thereof Download PDFInfo
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- CN113815130A CN113815130A CN202111046239.9A CN202111046239A CN113815130A CN 113815130 A CN113815130 A CN 113815130A CN 202111046239 A CN202111046239 A CN 202111046239A CN 113815130 A CN113815130 A CN 113815130A
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- diamond tool
- circular hole
- tool bit
- laser welding
- diamond
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/12—Saw-blades or saw-discs specially adapted for working stone
- B28D1/121—Circular saw blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D65/00—Making tools for sawing machines or sawing devices for use in cutting any kind of material
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- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
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Abstract
The invention relates to a laser welding saw blade with helical tooth circular hole grooves, and relates to the technical field of diamond tools. The invention relates to a laser welding saw blade with inclined tooth round hole slots, which comprises a disc steel base body, wherein a plurality of diamond tool bits are fixed on the edge of the periphery of the disc steel base body by laser welding, and the side surfaces of the diamond tool bits along the circumferential direction of the disc steel base body have the same inclined direction; the front surface and the rear surface of the diamond tool bit are provided with a plurality of circular hole grooves, the side walls of the circular hole grooves are perpendicular to the front surface and the rear surface of the diamond tool bit, and the sum of the areas of the bottom surfaces of the circular hole grooves accounts for 15-50% of the orthographic projection area of the front surface or the rear surface of the diamond tool bit. According to the invention, through the optimized design of the cutter head, the contact surface has more chip grooves when the saw blade cuts, more gravels and chips can be taken away during cutting, the cutting resistance is reduced, the heat dissipation capability can be improved, the cutter head can keep the temperature not to be overheated, the cutting sharpness is ensured, the cutting efficiency is improved, and the material consumption is reduced.
Description
Technical Field
The invention relates to the technical field of diamond tools, in particular to a helical tooth circular hole groove laser welding saw blade and a preparation method thereof.
Background
Under the current large background of developing economy at a high speed, low carbon and environmental protection become great tendency, the foundation construction can not be provided with the diamond saw blade, and the requirements for developing energy-saving and efficient cutting tools are more and more urgent along with the improvement of labor cost and the increase of material consumption cost in the processes of concrete pouring and engineering construction.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention aims to provide an efficient and energy-saving helical tooth circular hole groove laser welding saw blade and a preparation method thereof.
The invention relates to a laser welding saw blade with inclined teeth and circular holes, which comprises a disc steel base body, wherein a plurality of diamond tool bits are fixed on the edge of the periphery of the disc steel base body in a laser welding manner, and the side surfaces of the diamond tool bits along the circumferential direction of the disc steel base body have the same inclined direction; the method is characterized in that: the diamond tool bit is characterized in that a plurality of circular hole grooves are formed in the front surface and the rear surface of the diamond tool bit, the side walls of the circular hole grooves are perpendicular to the front surface and the rear surface of the diamond tool bit, and the sum of the areas of the bottom surfaces of the circular hole grooves accounts for 15-50% of the orthographic projection area of the front surface or the rear surface of the diamond tool bit.
Preferably, the sum of the areas of the bottom surfaces of the plurality of circular hole grooves accounts for 25 to 35% of the orthographic area of the front surface or the rear surface of the diamond tip.
Wherein a percentage of a sum of areas of bottom surfaces of the circular grooves on the front surface of the diamond tip to an orthographic projection area of the front surface of the diamond tip is the same as a percentage of a sum of areas of bottom surfaces of the circular grooves on the rear surface of the diamond tip to an orthographic projection area of the rear surface of the diamond tip.
Wherein a depth of the circular hole groove on the front surface of the diamond tip is the same as a depth of the circular hole groove on the rear surface of the diamond tip.
The depth of the round hole groove is 1/5-1/20 of the thickness of the diamond tool bit.
Preferably, the depth of the round hole groove is 1/5-1/10 of the thickness of the diamond tool bit.
Wherein the circular hole groove on the front surface and the circular hole groove on the rear surface are symmetrically arranged.
Wherein, the number of diamond segments is 6 ~ 20.
The invention also provides a preparation method of the oblique tooth circular hole groove laser welding saw blade, which comprises the following steps:
1. preparing a matrix:
preparing a disc steel matrix, and then polishing and flattening;
2. preparing a diamond tool bit:
uniformly mixing the raw materials of the diamond tool bit, then loading the raw materials into a die, and performing cold press molding to obtain a diamond tool bit blank body with a plurality of round hole grooves on the front surface and the rear surface; the diamond tool bit blank is sintered by hot pressing to obtain the diamond tool bit;
3. laser welding:
setting diamond tool bits on corresponding positions around the disc steel substrate, adjusting the light spot of a laser welding machine to the proper positions of the tool bits and the substrate, starting the laser welding machine for welding, so that the tool bits and the substrate are welded together at the moment of laser penetration, and detecting the welding strength of each diamond tool bit;
4. polishing, painting and inspecting:
and grinding the working surface of the diamond tool bit by using a grinding wheel, grinding the surface of the disc steel substrate by using a grinding machine, detecting the welding strength of each diamond tool bit, performing unqualified reworking, and performing surface paint spraying and drying if the diamond tool bit is qualified.
The diamond tool bit comprises a diamond tool bit body and a diamond tool bit, wherein the diamond tool bit body is made of metal bonding agents, pore-forming agents and diamond particles.
Compared with the prior art, the laser welding saw blade with the helical tooth circular hole groove and the preparation method thereof have the following beneficial effects:
according to the invention, through the optimized design of the cutter head, when the saw blade cuts, the contact surface is provided with more chip grooves, more gravels and fragments are taken away when concrete and granite are cut, the cutting resistance is reduced, the heat dissipation capability can be improved, the cutter head can keep the temperature and is not overheated, the cutter head is not passivated, the cutting sharpness is improved, the maximum result of the work is achieved, the cutting efficiency is improved, and the material consumption is reduced.
Drawings
Fig. 1 is a schematic plan view of a helical tooth circular hole groove laser welding saw blade according to the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
As shown in figure 1, the laser welding saw blade with the inclined teeth and the circular holes comprises a disc steel base body 10, a plurality of diamond tool bits 20 are fixed on the edge of the periphery of the disc steel base body 10 through laser welding, the diameter of the disc steel base body 10 can be designed to be 100 mm-300 mm according to requirements, and the number of the diamond tool bits 20 is 6-20. The disk steel base body 10 between the adjacent diamond segments 20 is provided with chip grooves 15 adjacent to the gaps between the adjacent diamond segments 20, and the center of the disk steel base body 10 is provided with a mounting hole 11. The diamond segments 20 is provided with a plurality of round hole grooves 21 on the front surface and the rear surface, in the invention, the lateral wall of round hole groove 21 with diamond segments 20's front surface or rear surface vertical setting, can better performance hold bits and chip removal ability through vertical setting, can take away more gravels during the cutting, the piece reduces the cutting resistance, guarantees the sharpness of cutting, moreover the area sum of a plurality of round hole grooves's basal surface accounts for 15 ~ 50% of diamond segments's front surface or rear surface's orthographic projection area, can enough exert chip removal and heat-sinking ability, can take away the heat that produces by tool bit and material cutting and smooth chip removal when high-speed cutting, can guarantee in the perpendicular situation that sets up in round hole groove moreover, stability under the high-speed cutting condition prevents to split. Preferably, the sum of the areas of the bottom surfaces of the circular hole grooves accounts for 25-35% of the orthographic projection area of the front surface or the rear surface of the diamond tool bit, so that the saw blade can cut smoothly, and the cutting effect is guaranteed. In the invention, in order to reduce the design cost and the manufacturing cost of the cold pressing die, all the diamond tool bits have the same structure and size, and the depth of a circular hole groove on the front surface of each diamond tool bit is the same as that of a circular hole groove on the rear surface of each diamond tool bit, wherein the depth of the circular hole groove is 1/5-1/20 of the thickness of each diamond tool bit, and preferably, the depth of the circular hole groove is 1/5-1/10 of the thickness of each diamond tool bit. In the invention, the disk steel base 10 is provided with a plurality of radiating hole arrays 12, the radiating hole arrays 12 are close to the excircle area of the disk steel base 10, and the excircle area is closer to the diamond tool bit in the cutting process, so that the air flow can be better improved for radiating, and the disk steel base can not generate heat, soften and deform due to excessive heat accumulation during high-speed cutting, thereby improving the safety.
The manufacturing process of the laser welding saw blade with the helical tooth circular hole groove comprises the following steps:
1. matrix processing
According to the requirements of drawings, carrying out quenching heat treatment on a steel plate, tempering, cutting the shape by laser, tempering, grinding a plane, grinding an inner hole, grinding an outer circle and deburring;
2. diamond tool bit preparation
According to specific use requirements, selecting a metal bonding agent, a pore-forming agent (liquid paraffin) and diamond particles, uniformly mixing, then performing cold press molding to obtain a diamond tool bit blank with arrow-shaped groove teeth on the surface, performing hot press sintering, and performing abrasive belt grinding by using a grinding wheel to prepare the diamond tool bit;
3. laser welding
Putting the cutter head and the basal body together at the position of the basal body corresponding to the requirement of a drawing, adjusting the light spot of a laser welding machine to the proper position of the cutter head and the basal body, starting the laser welding machine to weld the cutter head and the basal body together at the moment of laser penetration, and then welding the cutter head and the basal body together at the speed of 600N/mm2The welding strength of each diamond tool bit is detected according to the strength standard;
4. polishing, spraying paint and inspecting
The welded arrowhead tooth laser welding saw blade firstly carries out sand blasting on the inner side surface of the cutter head, then uses a special grinding wheel to grind the working surface of the diamond cutter head and expose the diamond, uses a grinder to grind the surface of a substrate to be bright, and then uses a 600N/mm polishing machine to grind the surface of the substrate to be bright2The intensity standard is used for detecting the safe welding intensity of each diamond tool bit, unqualified reworking is carried out, surface painting and drying are carried out if the diamond tool bit is qualified, so as to prevent the surface from rusting, and finally silk printing and laser are carried outMarking, packaging and warehousing.
The laser welding saw blade with the helical tooth and the circular hole groove is mainly used for drilling and cutting reinforced concrete wall surfaces and cutting and maintaining engineering bridges, and compared with the existing commercial products, the laser welding saw blade with the helical tooth and the circular hole groove can obviously reduce material consumption and save material cost.
Example 1
Quenching and heat treating the blank, tempering, according to the requirements of a drawing, performing laser cutting processing to obtain a disc steel matrix blank which is provided with a mounting hole in the center and has the diameter of 300mm, processing 16 chip grooves on the outer edge of the disc steel matrix and processing a heat dissipation hole array, tempering, grinding a plane, grinding an inner hole, grinding an outer circle and removing burrs; 2.45kg of copper powder, 3.95kg of iron, 0.65kg of nickel, 0.75kg of cobalt, 0.3kg of tin and 1.8kg of rare earth alloy are taken, put into a mixing barrel and mixed for 30 minutes, 0.04kg of liquid paraffin and 0.16kg of diamond are added, the mixture is continuously mixed for 3 hours, then the powder is poured into a die for cold pressing and molding, a plurality of circular hole grooves are symmetrically arranged on the front surface and the rear surface of the obtained blank, the depth of each circular hole groove is 1/10 of the thickness of the diamond tool bit, and the sum of the areas of the bottom surfaces of the circular hole grooves on the front surface or the rear surface accounts for about 30% of the forward projection area of the front surface or the rear surface of the diamond tool bit. Then hot-pressing sintering is carried out, the hot-pressing sintering temperature is 750 ℃, and the pressure is 400kg/cm2The heat preservation time is 100 seconds, then a grinding wheel abrasive belt is adopted to polish a tool bit, the tool bit and a base body are placed on the position of the base body corresponding to the drawing requirements together, the light spot of a laser welding machine is adjusted to the proper position of the tool bit and the base body, the laser welding machine is started to weld the 16 prepared diamond tool bits and the base body together at the moment of laser penetration, and the welding is carried out at the speed of 600N/mm2The method comprises the steps of detecting the welding strength of each diamond tool bit according to the strength standard, welding and protecting teeth by adopting high-frequency welding, polishing the surface of a substrate by using a polishing machine to polish the surface of the substrate by using arrow-shaped teeth laser welding saw blades after welding to be bright, polishing the working surface of each diamond tool bit by using a grinding wheel to expose diamonds, spraying paint on the surface, drying to prevent the surface from rusting, and finally using 600N/mm to perform surface painting2The strength standard detects the welding strength of each diamond tool bit, unqualified reworking is carried out, and surface painting and drying are carried out if the diamond tool bit is qualifiedTo prevent the surface from rusting, and finally, silk-screen printing, laser marking, packaging and warehousing are carried out. The abrasion ratio was 1.33X 10 as measured by the method of measuring the abrasion ratio of JB/T3235-1999 Artificial Diamond sintered compact4。
Comparative example 1
The difference compared to example 1 is that the front and back surfaces of the blank in comparative example 1 are planar. The abrasion ratio was 0.91X 10 as measured by the method of measuring the abrasion ratio of JB/T3235-1999 Artificial Diamond sintered compact4。
It is obvious to those skilled in the art that the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, and various insubstantial modifications made by the method concept and technical scheme of the present invention are within the protection scope of the present invention.
Claims (10)
1. A laser welding saw blade with inclined teeth and circular holes comprises a disc steel base body, wherein a plurality of diamond tool bits are fixed on the edge of the periphery of the disc steel base body in a laser welding mode, and the side surfaces of the diamond tool bits along the circumferential direction of the disc steel base body have the same inclined direction; the method is characterized in that: the diamond tool bit is characterized in that a plurality of circular hole grooves are formed in the front surface and the rear surface of the diamond tool bit, the side walls of the circular hole grooves are perpendicular to the front surface and the rear surface of the diamond tool bit, and the sum of the areas of the bottom surfaces of the circular hole grooves accounts for 15-50% of the orthographic projection area of the front surface or the rear surface of the diamond tool bit.
2. The skewed tooth circular hole slot laser welding saw blade of claim 1, wherein: the sum of the areas of the bottom surfaces of the plurality of circular hole grooves accounts for 25-35% of the orthographic projection area of the front surface or the rear surface of the diamond tool bit.
3. The skewed tooth circular slot laser welding saw blade as claimed in claim 1 or 2, wherein: the percentage of the sum of the areas of the bottom surfaces of the circular grooves on the front surface of the diamond tip to the orthographic projection area of the front surface of the diamond tip is the same as the percentage of the sum of the areas of the bottom surfaces of the circular grooves on the rear surface of the diamond tip to the orthographic projection area of the rear surface of the diamond tip.
4. The skewed tooth circular hole slot laser welding saw blade of claim 3, wherein: the depth of the circular hole groove on the front surface of the diamond tip is the same as the depth of the circular hole groove on the rear surface of the diamond tip.
5. The skewed tooth circular hole slot laser welding saw blade of claim 1, wherein: the depth of the round hole groove is 1/5-1/20 of the thickness of the diamond tool bit.
6. The skewed tooth circular hole slot laser welding saw blade of claim 5, wherein: the depth of the round hole groove is 1/5-1/10 of the thickness of the diamond tool bit.
7. The skewed tooth circular hole slot laser welding saw blade of claim 1, wherein: the circular hole groove on the front surface and the circular hole groove on the rear surface are symmetrically arranged.
8. The skewed tooth circular hole slot laser welding saw blade of claim 1, wherein: the number of the diamond tool bits is 6-20.
9. The method for manufacturing a skewed tooth circular hole slot laser welding saw blade as claimed in any one of claims 1 to 8, comprising the steps of:
(1) preparing a matrix:
preparing a disc steel matrix, and then polishing and flattening;
(2) preparing a diamond tool bit:
uniformly mixing the raw materials of the diamond tool bit, then loading the raw materials into a die, and performing cold press molding to obtain a diamond tool bit blank body with a plurality of round hole grooves on the front surface and the rear surface; the diamond tool bit blank is sintered by hot pressing to obtain the diamond tool bit;
(3) laser welding:
setting diamond tool bits on corresponding positions around the disc steel substrate, adjusting the light spot of a laser welding machine to the proper positions of the tool bits and the substrate, starting the laser welding machine for welding, so that the tool bits and the substrate are welded together at the moment of laser penetration, and detecting the welding strength of each diamond tool bit;
(4) polishing, painting and inspecting:
and grinding the working surface of the diamond tool bit by using a grinding wheel, grinding the surface of the disc steel substrate by using a grinding machine, detecting the welding strength of each diamond tool bit, performing unqualified reworking, and performing surface paint spraying and drying if the diamond tool bit is qualified.
10. The method for preparing a saw blade by laser welding of circular hole with helical teeth and groove as claimed in claim 9, wherein the diamond tool bit is composed of a metal binder, a pore-forming agent and diamond particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111046239.9A CN113815130A (en) | 2021-09-08 | 2021-09-08 | Oblique tooth circular hole groove laser welding saw blade and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111046239.9A CN113815130A (en) | 2021-09-08 | 2021-09-08 | Oblique tooth circular hole groove laser welding saw blade and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113815130A true CN113815130A (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111046239.9A Pending CN113815130A (en) | 2021-09-08 | 2021-09-08 | Oblique tooth circular hole groove laser welding saw blade and preparation method thereof |
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| CN (1) | CN113815130A (en) |
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2021
- 2021-09-08 CN CN202111046239.9A patent/CN113815130A/en active Pending
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