CN110948706A - Tooth-protecting diamond saw blade and laser welding preparation process thereof - Google Patents
Tooth-protecting diamond saw blade and laser welding preparation process thereof Download PDFInfo
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- CN110948706A CN110948706A CN201911153023.5A CN201911153023A CN110948706A CN 110948706 A CN110948706 A CN 110948706A CN 201911153023 A CN201911153023 A CN 201911153023A CN 110948706 A CN110948706 A CN 110948706A
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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
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
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- 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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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Abstract
The invention discloses a tooth-protecting diamond saw blade and a laser welding preparation process thereof, and belongs to the technical field of efficient energy-saving tools. The diamond saw blade comprises a substrate and a diamond tool bit, wherein the substrate is made of 30 CrMo; the cutter head comprises the following raw materials in parts by weight: 20-33 parts of copper, 28-44 parts of iron, 3-12 parts of nickel, 6-20 parts of cobalt, 3-11 parts of tin, 11-24 parts of rare earth alloy, 0.09-0.15 part of liquid paraffin and 1.0-2.5 parts of diamond. The tool bit and the base body are connected into a whole through laser welding. According to the invention, by optimizing the cutter head composition and the diamond saw blade structure, the prepared diamond saw blade can meet the use requirements of high efficiency and energy saving, and is environment-friendly and safe.
Description
Technical Field
The invention relates to the technical field of efficient energy-saving tools, in particular to a tooth-protecting diamond saw blade and a laser welding preparation process thereof.
Background
In the rapidly developing market environment, safety and efficiency are indispensable requirements for diamond saw blades, and particularly when used in a severe environment, the safety problem of diamond saw blades is a constant subject. Because the common saw blade is not protected by the protective teeth or only has little hard alloy to protect the matrix, the safety and the stability are difficult to maintain, and the foundation construction can not leave the diamond saw blade, and because the labor cost is increased in the processes of pouring concrete pavements and engineering construction, a high-efficiency energy-saving tool is certainly favored by users.
Disclosure of Invention
The invention aims to provide a tooth-protecting diamond saw blade and a laser welding preparation process thereof, which can meet the use requirement of high efficiency and energy saving and are environment-friendly and safe.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a tooth-protecting diamond saw blade comprises a substrate and a diamond cutter head, wherein the substrate is made of 30 CrMo; the cutter head comprises the following raw materials in parts by weight:
20-33 parts of copper, 28-44 parts of iron, 3-12 parts of nickel, 6-20 parts of cobalt, 3-11 parts of tin, 11-24 parts of rare earth alloy, 0.09-0.15 part of liquid paraffin and 1.0-2.5 parts of diamond.
The cutter head is preferably composed of the following raw materials:
24-29 parts of copper, 30-39 parts of iron, 6-10 parts of nickel, 9-18 parts of cobalt, 4-6.5 parts of tin, 13-21 parts of rare earth alloy, 0.1-0.15 part of liquid paraffin and 1.4-2.0 parts of diamond.
In the tool bit raw materials, the diamond granularity is 30/40, 40/50 or 50/60, and the compressive strength is 25-40 kg; the rare earth alloy is La-Ni alloy, La in the La-Ni alloy is 15-20 wt.%, and the balance is Ni.
This diamond saw blade still wraps chip groove and chip removal cooling hole, wherein: the diamond tool bits are uniformly distributed on the outer edge of the matrix, and chip removal grooves are formed between every two adjacent diamond tool bits; the part of the chip groove extending out of the inner side face of the diamond tool bit is inclined, and the included angle between the inclined part and the diameter direction of the diamond saw blade is 20-50 degrees; the heights of the corresponding side surfaces of the diamond tool bit on the two sides of the chip groove are not equal; the chip removal cooling holes are distributed on circular ring lines which are concentric with the diamond saw blade but have different radiuses, the chip removal cooling holes on the circular ring lines are uniformly distributed, and the number of the chip removal cooling holes on each circular ring line is the same as that of the tool bits.
In the matrix, chip removal cooling holes at corresponding positions on circular lines from outside to inside are connected into a straight line, and the included angle between the straight line direction and the inclined part of the chip removal groove is 0-10 degrees; and a row of chip removal cooling holes are distributed at every other cutter head.
The radius of the diamond saw blade is 145-155 mm; the longest distance from the center of the diamond saw blade to the outer edge of the matrix is 135-145mm, and the shortest distance from the center of the diamond saw blade to the outer edge of the matrix is 125-135 mm; the distance between adjacent circular ring lines on the substrate is 8-10 mm.
The thickness of the diamond tool bit is 3.0-3.3mm, and the thickness of the substrate is 2.1-2.3 mm; the diameter of the chip removal cooling hole is 3-5 mm.
The center of the diamond saw blade is also provided with a mounting hole for mounting the diamond saw blade on a cutting machine; the diameter of the mounting hole is 25-26 mm.
The laser welding preparation process of the tooth-protecting diamond saw blade comprises the following steps:
(1) processing a matrix:
carrying out heat treatment on the steel plate, wherein the heat treatment process comprises the following steps: 865 DEG and 880 DEG oil quenching for 10-15 minutes, and then tempering for 2-5 hours at 450 DEG and 500 DEG; processing the steel plate after heat treatment into a matrix shape;
(2) preparing a diamond tool bit:
uniformly mixing the raw materials of the diamond tool bit in proportion, then carrying out cold press molding, mixing the raw materials of the transition layer, and carrying out cold press molding; arranging a transition layer with the thickness of 1-2mm on the inner side of the diamond tool bit subjected to cold press molding, connecting the diamond tool bit and the transition layer together through hot press sintering, and grinding the diamond tool bit and the transition layer through a grinding wheel abrasive belt to manufacture the diamond tool bit with the transition layer, wherein the hot press sintering temperature is 780-850 ℃, and the pressure is 300-350 kg/cm2Keeping the temperature for 1.5-3 min;
(3) laser welding:
placing a diamond tool bit on a corresponding position around a base body according to the drawing requirements, adjusting the light spot of a laser welding machine to a position where the tool bit and the base body are suitable, and starting a laser welding machine for welding to enable the tool bit and the base body to be welded together at the moment of laser penetration; the welding process parameters are as follows: a CO2 laser is adopted, the diameter of a laser spot is 0.4mm, the laser power is 800-820W, and the welding speed is 15-20 mm/s; the protective gas is argon, the flow of the protective gas is 0.5L/min, the defocusing amount is 0.85-1.0mm, the offset of a laser beam is 0.1-0.3mm, and the incident angle of the laser is 5-10 degrees.
(4) And (3) sand blasting the inner side surface of the tool bit of the welded tooth-protecting porous diamond saw blade, then grinding the working surface of the diamond tool bit by using a special grinding wheel, exposing the diamond, and grinding by using a grinding machine until the surface of the matrix is bright.
The transition layer material comprises the following components: 30-38 wt.% of Fe, 8-12 wt.% of Cu, 6-8 wt.% of Mn and the balance of Co; the density of the transition layer after hot-pressing sintering is more than 8g/cm3。
The design principle and the beneficial effects of the invention are as follows:
1. through the structural improvement of the diamond cutter head, the edge of the matrix is in a sawtooth shape, the shape of the inner side of the cutter head is also adapted to the edge of the matrix, and the teeth of the cutter head are thinned, so that the performances of wear resistance and the like between the cutter head and the matrix are improved. The thickness difference between the cutter head and the substrate is calculated, specifications (thickness, distance, hole sizes and the like) of the cutter head and the substrate in the welding sheet are limited, the design of the high-efficiency tooth-protecting porous diamond saw blade is realized, and when the cutting machine is used for cutting materials such as concrete pavements at high speed, the tooth-protecting laser sheet can reduce the contact area between the substrate and the cutting material, so that the ineffective friction between the substrate and the cutting material is reduced, the resistance is reduced, the cutting efficiency is improved, and the cutting machine is more environment-friendly and safe.
2. Because the joint of the cutter head and the substrate is in sawtooth-shaped matching, the invention particularly adopts laser welding, so that the combination strength of the cutter head and the substrate is higher, the safety performance is better, and the cutter head can firmly resist the safe cutting of high-toughness materials such as reinforcing steel bars and the like during high-speed impact cutting.
3. By adding the components such as cobalt and rare earth alloy in the formula and blending the proportion of the components, the embedding force of the diamond tool bit matrix on the diamond can be improved, the edge height of the diamond is higher, and the cutting is sharp.
4. The transition layer with specific composition is designed by combining the base material and the cutter head matrix material, and the transition layer has good density by matching with an optimal hot pressing process, and the preparation of the diamond saw blade with high bonding force is realized by matching with corresponding laser welding parameters.
Drawings
FIG. 1 is a schematic view (top view) of a porous diamond saw blade according to the present invention.
FIG. 2 is a schematic view (side view) of the construction of a porous diamond saw blade according to the present invention.
FIG. 3 is an enlarged view of a portion of the porous diamond saw blade structure of the present invention.
Wherein: 1-a substrate; 2-chip removal groove; 3-chip removal cooling holes; 4-diamond tool tip.
Detailed Description
For a further understanding of the present invention, the following description is given in conjunction with the examples which are set forth to illustrate, but are not to be construed to limit the present invention, features and advantages.
As shown in fig. 1-3, the tooth-protecting porous laser welding sheet comprises a substrate 1, a chip removal groove 2, chip removal cooling holes 3 and diamond tool bits 4, wherein the diamond tool bits are uniformly distributed on the outer edge of the substrate, and the chip removal groove is formed between every two adjacent diamond tool bits; the part of the chip groove extending out of the inner side face of the diamond tool bit is inclined, and the included angle between the inclined part and the diameter direction of the diamond saw blade is 20-50 degrees; the heights of the corresponding diamond tool bit side surfaces on the two sides of the chip groove are not equal (respectively D1 and D2, D1 is more than D2, and D1 is (1.2-2) multiplied by D2); the chip removal cooling holes are distributed on circular ring lines which are concentric with the diamond saw blade but have different radiuses, the chip removal cooling holes on the circular ring lines are uniformly distributed, and the number of the chip removal cooling holes on each circular ring line is the same as that of the tool bits.
In the matrix, chip removal cooling holes at corresponding positions on circular lines from outside to inside are connected into a straight line, and the included angle between the straight line direction and the inclined part of the chip removal groove is 0-10 degrees; and a row of chip removal cooling holes are distributed at every other cutter head.
The radius of the diamond saw blade is 145-155 mm; the longest distance from the center of the diamond saw blade to the outer edge of the matrix is 135-145mm, and the shortest distance from the center of the diamond saw blade to the outer edge of the matrix is 125-135 mm; the distance between adjacent circular ring lines on the substrate is 8-10 mm.
The thickness of the diamond tool bit is 3.0-3.3mm, and the thickness of the substrate is 2.1-2.3 mm; the diameter of the chip removal cooling hole is 3-5 mm. The center of the diamond saw blade is also provided with a mounting hole, and the diameter of the mounting hole is 25-26 mm.
Example 1:
this example is the preparation of a tooth-protecting porous laser welded sheet, the process is as follows:
1. the material of the substrate is 30 CrMo; the cutter head comprises the following raw materials in parts by weight:
24 parts of copper, 31 parts of iron, 7.5 parts of nickel, 12 parts of cobalt, 6 parts of tin, 19.5 parts of rare earth alloy, 0.14 part of liquid paraffin and 1.6 parts of diamond.
The diamond granularity is 40/50, and the compressive strength is 25-40 kg; the rare earth alloy is La-Ni alloy, La in the La-Ni alloy is 15.5 wt.%, and the balance is Ni.
2. Processing a matrix:
carrying out heat treatment on the steel plate, wherein the heat treatment process comprises the following steps: oil quenching at 870 ℃ for 12 minutes, and then tempering at 460 ℃ for 4 hours; processing the steel plate after heat treatment into a matrix shape;
3. preparing a diamond tool bit:
uniformly mixing the raw materials of the diamond tool bit in proportion, then carrying out cold press molding, mixing the raw materials of the transition layer, and carrying out cold press molding; arranging a transition layer with the thickness of 1.5mm on the inner side of the diamond tool bit after cold press molding, connecting the diamond tool bit and the transition layer together through hot-pressing sintering, and grinding by a grinding wheel abrasive belt to manufacture the diamond tool bit with the transition layer, wherein the hot-pressing sintering temperature is 785 ℃, and the pressure is 350kg/cm2Keeping the temperature for 2 min; the transition layer material comprises the following components: 35 wt.% Fe, 8.5 wt.% Cu, 6.7 wt.% mn, and the balance Co; the density of the transition layer after hot-pressing sintering is 8.5g/cm3。
4. Laser welding:
placing a diamond tool bit on a corresponding position around a base body according to the drawing requirements, adjusting the light spot of a laser welding machine to a position where the tool bit and the base body are suitable, and starting a laser welding machine for welding to enable the tool bit and the base body to be welded together at the moment of laser penetration; the welding process parameters are as follows: a CO2 laser is adopted, the diameter of a laser spot is 0.45mm, the laser power is 800W, and the welding speed is 18 mm/s; the protective gas is argon, the flow of the protective gas is 0.5L/min, the defocusing amount is 0.85mm, the offset of a laser beam is 0.15mm, and the laser incidence angle is 8 degrees.
5. Polishing, spraying paint and inspecting
The inner side surface of the bit of the welded tooth-protecting porous diamond saw blade is sandblasted, then the working surface of the diamond bit is polished by a special grinding wheel, and gold is madeExposing the diamond, polishing with a polishing machine until the surface of the substrate is bright, and polishing with a polishing machine at 600N/mm2And (3) carrying out safe welding strength detection on each diamond tool bit by using the strength standard, carrying out unqualified reworking, carrying out surface paint spraying and drying if the diamond tool bit is qualified so as to prevent the surface from rusting, and finally carrying out silk-screen printing, laser marking, packaging and warehousing.
Through testing, the welding seam of the diamond saw blade prepared by the embodiment has no macroscopic defects such as air holes, cracks and the like. The strength of the welding seam is about 1520N/mm2。
Example 2:
this example is the preparation of a tooth-protecting porous laser welded sheet, the process is as follows:
1. the material of the substrate is 30 CrMo; the cutter head comprises the following raw materials in parts by weight:
25.5 parts of copper, 34 parts of iron, 8 parts of nickel, 12 parts of cobalt, 4.5 parts of tin, 20 parts of rare earth alloy, 0.12 part of liquid paraffin and 1.5 parts of diamond.
The diamond granularity is 40/50, and the compressive strength is 25-40 kg; the rare earth alloy is La-Ni alloy, La in the La-Ni alloy is 15.5 wt.%, and the balance is Ni.
2. Processing a matrix:
carrying out heat treatment on the steel plate, wherein the heat treatment process comprises the following steps: oil quenching at 875 ℃ for 10 minutes, and tempering at 450 ℃ for 4 hours; processing the steel plate after heat treatment into a matrix shape;
3. preparing a diamond tool bit:
uniformly mixing the raw materials of the diamond tool bit in proportion, then carrying out cold press molding, mixing the raw materials of the transition layer, and carrying out cold press molding; arranging a transition layer with the thickness of 1.5mm on the inner side of the diamond tool bit after cold press molding, connecting the diamond tool bit and the transition layer together through hot-pressing sintering, and grinding the diamond tool bit and the transition layer through a grinding wheel abrasive belt to manufacture the diamond tool bit with the transition layer, wherein the hot-pressing sintering temperature is 790 ℃, and the pressure is 350kg/cm2Keeping the temperature for 2 min; the transition layer material comprises the following components: 36 wt.% of Fe, 10 wt.% of Cu, 6.5 wt.% of Mn6, and the balance of Co; the density of the transition layer after hot-pressing sintering is more than 8.7g/cm3。
4. Laser welding:
placing a diamond tool bit on a corresponding position around a base body according to the drawing requirements, adjusting the light spot of a laser welding machine to a position where the tool bit and the base body are suitable, and starting a laser welding machine for welding to enable the tool bit and the base body to be welded together at the moment of laser penetration; the welding process parameters are as follows: a CO2 laser is adopted, the diameter of a laser spot is 0.4mm, the laser power is 805W, and the welding speed is 18 mm/s; the protective gas is argon, the flow of the protective gas is 0.5L/min, the defocusing amount is 0.85mm, the offset of a laser beam is 0.15mm, and the laser incidence angle is 6 degrees.
5. Polishing, spraying paint and inspecting
Blasting sand to the inner side of the bit of the welded tooth-protecting porous diamond saw blade, then using a special grinding wheel to grind the working surface of the diamond bit to expose the diamond, grinding the diamond by using a grinding machine until the surface of the substrate is bright, and then using a grinding machine to grind the diamond to be 600N/mm2And (3) carrying out safe welding strength detection on each diamond tool bit by using the strength standard, carrying out unqualified reworking, carrying out surface paint spraying and drying if the diamond tool bit is qualified so as to prevent the surface from rusting, and finally carrying out silk-screen printing, laser marking, packaging and warehousing.
Through testing, the welding seam of the diamond saw blade prepared by the embodiment has no macroscopic defects such as air holes, cracks and the like. The strength of the welding seam is about 1500N/mm2。
Example 3:
this example is the preparation of a tooth-protecting porous laser welded sheet, the process is as follows:
1. the material of the substrate is 30 CrMo; the cutter head comprises the following raw materials in parts by weight:
25 parts of copper, 36 parts of iron, 6.5 parts of nickel, 12 parts of cobalt, 4.5 parts of tin, 15 parts of rare earth alloy, 0.14 part of liquid paraffin and 1.5 parts of diamond.
The diamond granularity is 40/50, and the compressive strength is 25-40 kg; the rare earth alloy is La-Ni alloy, La in the La-Ni alloy is 15.5 wt.%, and the balance is Ni.
2. Processing a matrix:
carrying out heat treatment on the steel plate, wherein the heat treatment process comprises the following steps: oil quenching at 875 ℃ for 12 minutes, and tempering at 480 ℃ for 4 hours; processing the steel plate after heat treatment into a matrix shape;
3. preparing a diamond tool bit:
the raw materials of the diamond tool bit are mixed evenly according to the proportionThen cold press molding is carried out, and the transition layer raw materials are mixed and then cold press molding is carried out; arranging a transition layer with the thickness of 1.5mm on the inner side of the diamond tool bit after cold press molding, connecting the diamond tool bit and the transition layer together through hot-pressing sintering, and grinding by a grinding wheel abrasive belt to manufacture the diamond tool bit with the transition layer, wherein the hot-pressing sintering temperature is 785 ℃, and the pressure is 340kg/cm2Keeping the temperature for 2 min; the transition layer material comprises the following components: fe 32 wt.%, Cu 8.6 wt.%, mn7.0 wt.%, balance Co; the density of the transition layer after hot-pressing sintering is 8.8g/cm3。
4. Laser welding:
placing a diamond tool bit on a corresponding position around a base body according to the drawing requirements, adjusting the light spot of a laser welding machine to a position where the tool bit and the base body are suitable, and starting a laser welding machine for welding to enable the tool bit and the base body to be welded together at the moment of laser penetration; the welding process parameters are as follows: a CO2 laser is adopted, the diameter of a laser spot is 0.4mm, the laser power is 805W, and the welding speed is 15 mm/s; the protective gas is argon, the flow of the protective gas is 0.5L/min, the defocusing amount is 0.82mm, the offset of a laser beam is 0.15mm, and the laser incidence angle is 8 degrees.
5. Polishing, spraying paint and inspecting
Blasting sand to the inner side of the bit of the welded tooth-protecting porous diamond saw blade, then using a special grinding wheel to grind the working surface of the diamond bit to expose the diamond, grinding the diamond by using a grinding machine until the surface of the substrate is bright, and then using a grinding machine to grind the diamond to be 600N/mm2And (3) carrying out safe welding strength detection on each diamond tool bit by using the strength standard, carrying out unqualified reworking, carrying out surface paint spraying and drying if the diamond tool bit is qualified so as to prevent the surface from rusting, and finally carrying out silk-screen printing, laser marking, packaging and warehousing.
Through testing, the welding seam of the diamond saw blade prepared by the embodiment has no macroscopic defects such as air holes, cracks and the like. The strength of the welding line is about 1525N/mm2。
Claims (10)
1. A tooth-protecting diamond saw blade is characterized in that: the diamond saw blade comprises a substrate and a diamond tool bit, wherein the substrate is made of 30 CrMo; the cutter head comprises the following raw materials in parts by weight:
20-33 parts of copper, 28-44 parts of iron, 3-12 parts of nickel, 6-20 parts of cobalt, 3-11 parts of tin, 11-24 parts of rare earth alloy, 0.09-0.15 part of liquid paraffin and 1.0-2.5 parts of diamond.
2. A tooth protecting diamond saw blade according to claim 1, wherein: the cutter head comprises the following raw materials:
24-29 parts of copper, 30-39 parts of iron, 6-10 parts of nickel, 9-18 parts of cobalt, 4-6.5 parts of tin, 13-21 parts of rare earth alloy, 0.1-0.15 part of liquid paraffin and 1.4-2.0 parts of diamond.
3. A tooth protecting diamond saw blade according to claim 1, wherein: in the tool bit raw materials, the diamond granularity is 30/40, 40/50 or 50/60, and the compressive strength is 25-40 kg; the rare earth alloy is La-Ni alloy, La in the La-Ni alloy is 15-20 wt.%, and the balance is Ni.
4. A tooth protecting diamond saw blade according to claim 1, wherein: this diamond saw blade still wraps chip groove and chip removal cooling hole, wherein: the diamond tool bits are uniformly distributed on the outer edge of the matrix, and chip removal grooves are formed between every two adjacent diamond tool bits; the part of the chip groove extending out of the inner side face of the diamond tool bit is inclined, and the included angle between the inclined part and the diameter direction of the diamond saw blade is 20-50 degrees; the heights of the corresponding side surfaces of the diamond tool bit on the two sides of the chip groove are not equal; the chip removal cooling holes are distributed on circular ring lines which are concentric with the diamond saw blade but have different radiuses, the chip removal cooling holes on the circular ring lines are uniformly distributed, and the number of the chip removal cooling holes on each circular ring line is the same as that of the tool bits.
5. The tooth protecting diamond saw blade according to claim 4, wherein: in the matrix, chip removal cooling holes at corresponding positions on circular lines from outside to inside are connected into a straight line, and the included angle between the straight line direction and the inclined part of the chip removal groove is 0-10 degrees; and a row of chip removal cooling holes are distributed at every other cutter head.
6. The tooth protecting diamond saw blade according to claim 4, wherein: the radius of the diamond saw blade is 145-155 mm; the longest distance from the center of the diamond saw blade to the outer edge of the matrix is 135-145mm, and the shortest distance from the center of the diamond saw blade to the outer edge of the matrix is 125-135 mm; the distance between adjacent circular ring lines on the substrate is 8-10 mm.
7. The tooth protecting diamond saw blade according to claim 4, wherein: the thickness of the diamond tool bit is 3.0-3.3mm, and the thickness of the substrate is 2.1-2.3 mm; the diameter of the chip removal cooling hole is 3-5 mm.
8. A tooth protecting diamond saw blade according to claim 1, wherein: the center of the diamond saw blade is also provided with a mounting hole for mounting the diamond saw blade on a cutting machine; the diameter of the mounting hole is 25-26 mm.
9. The laser welding process for preparing a tooth-protecting diamond saw blade according to claim 1, wherein: the process comprises the following steps:
(1) processing a matrix:
carrying out heat treatment on the steel plate, wherein the heat treatment process comprises the following steps: 865 DEG and 880 DEG oil quenching for 10-15 minutes, and then tempering for 2-5 hours at 450 DEG and 500 DEG; processing the steel plate after heat treatment into a matrix shape;
(2) preparing a diamond tool bit:
uniformly mixing the raw materials of the diamond tool bit in proportion, then carrying out cold press molding, mixing the raw materials of the transition layer, and carrying out cold press molding; arranging a transition layer with the thickness of 1-2mm on the inner side of the diamond tool bit subjected to cold press molding, connecting the diamond tool bit and the transition layer together through hot press sintering, and grinding the diamond tool bit and the transition layer through a grinding wheel abrasive belt to manufacture the diamond tool bit with the transition layer, wherein the hot press sintering temperature is 780-850 ℃, and the pressure is 300-350 kg/cm2Keeping the temperature for 1.5-3 min;
(3) laser welding:
placing a diamond tool bit at a corresponding position around a base body according to the requirements of a drawing, adjusting the light spot of a laser welding machine to a position where the tool bit is suitable for the base body, and starting a laser welding machine for welding to ensure that the tool bit and the base body are weldedWelding together at the moment of laser penetration; the welding process parameters are as follows: by using CO2The laser has the laser spot diameter of 0.4mm, the laser power of 800-; the protective gas is argon, the flow of the protective gas is 0.5L/min, the defocusing amount is 0.85-1.0mm, the offset of a laser beam is 0.1-0.3mm, and the incident angle of the laser is 5-10 degrees.
(4) And (3) sand blasting the inner side surface of the tool bit of the welded tooth-protecting porous diamond saw blade, then grinding the working surface of the diamond tool bit by using a special grinding wheel, exposing the diamond, and grinding by using a grinding machine until the surface of the matrix is bright.
10. The laser welding process for preparing a tooth-protecting diamond saw blade according to claim 9, wherein: the transition layer material comprises the following components: 30-38 wt.% of Fe, 8-12 wt.% of Cu, 6-8 wt.% of Mn and the balance of Co; the density of the transition layer after hot-pressing sintering is more than 8g/cm3。
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| CN112122695A (en) * | 2020-08-31 | 2020-12-25 | 江苏华昌工具制造有限公司 | Preparation process of laser welding saw blade |
| CN112171094A (en) * | 2020-09-24 | 2021-01-05 | 江苏友和工具有限公司 | Laser welding process for hard alloy tool bit containing welding transition layer |
| CN113843900A (en) * | 2021-08-31 | 2021-12-28 | 湖北银天钻石科技有限公司 | Rock plate saw blade with good cutting performance and manufacturing method thereof |
| CN114101794A (en) * | 2020-08-31 | 2022-03-01 | 江苏华昌工具制造有限公司 | Laser welding saw blade |
| CN115401200A (en) * | 2022-06-27 | 2022-11-29 | 山东华大金科新材料有限公司 | Diamond saw blade with strong impact toughness and high hardness and manufacturing process of diamond tool bit |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2820406Y (en) * | 2005-09-23 | 2006-09-27 | 郑州人造金刚石及制品工程技术研究中心 | Diomand saw blade |
| CN101456216A (en) * | 2009-01-09 | 2009-06-17 | 博深工具股份有限公司 | Laser-welding diamond disc and preparation method thereof |
| CN104874863A (en) * | 2015-06-19 | 2015-09-02 | 江苏锋泰工具有限公司 | Manufacture method for dry and wet dual-purpose diamond saw blade |
| CN104907942A (en) * | 2015-05-25 | 2015-09-16 | 江苏华昌工具制造有限公司 | Saw-tooth double-faced concave U sharp type concrete laser welding cutting disk preparation method |
| CN105252448A (en) * | 2015-10-28 | 2016-01-20 | 江苏锋泰工具有限公司 | Manufacturing process for dry grinding diamond grinding wheel |
| CN205853118U (en) * | 2016-07-28 | 2017-01-04 | 河北小蜜蜂工具集团有限公司 | A kind of Laser Welding Hand saw diamond disc |
| CN106493430A (en) * | 2017-01-14 | 2017-03-15 | 河北小蜜蜂工具集团有限公司 | A kind of three standard porous lasers welding diamond disc |
| CN107385346A (en) * | 2017-07-17 | 2017-11-24 | 江苏锋泰工具有限公司 | Compact diamond tool prealloy powder and preparation method thereof |
| CN207156165U (en) * | 2017-07-13 | 2018-03-30 | 青岛新韩金刚石工业有限公司 | A kind of special laser welding saw blade of Granite-cutting |
| CN109267461A (en) * | 2017-07-17 | 2019-01-25 | 江苏锋泰工具有限公司 | Laser welding diamond saw bit |
| CN109736712A (en) * | 2019-01-08 | 2019-05-10 | 江苏友美工具有限公司 | Laser welding diamond core bit |
| CN109736713A (en) * | 2019-01-08 | 2019-05-10 | 江苏友美工具有限公司 | A kind of diamond core bit and its laser welding preparation process |
| CN209408964U (en) * | 2018-10-19 | 2019-09-20 | 江苏乐泰超硬材料有限公司 | Composite diamond cutter head and diamond saw blade |
| CN110370467A (en) * | 2019-06-05 | 2019-10-25 | 江苏友美工具有限公司 | A kind of Laser Welding contact pin and its preparation process reducing Cutting Drag |
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-
2019
- 2019-11-21 CN CN201911153023.5A patent/CN110948706B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2820406Y (en) * | 2005-09-23 | 2006-09-27 | 郑州人造金刚石及制品工程技术研究中心 | Diomand saw blade |
| CN101456216A (en) * | 2009-01-09 | 2009-06-17 | 博深工具股份有限公司 | Laser-welding diamond disc and preparation method thereof |
| CN104907942A (en) * | 2015-05-25 | 2015-09-16 | 江苏华昌工具制造有限公司 | Saw-tooth double-faced concave U sharp type concrete laser welding cutting disk preparation method |
| CN104874863A (en) * | 2015-06-19 | 2015-09-02 | 江苏锋泰工具有限公司 | Manufacture method for dry and wet dual-purpose diamond saw blade |
| CN105252448A (en) * | 2015-10-28 | 2016-01-20 | 江苏锋泰工具有限公司 | Manufacturing process for dry grinding diamond grinding wheel |
| CN205853118U (en) * | 2016-07-28 | 2017-01-04 | 河北小蜜蜂工具集团有限公司 | A kind of Laser Welding Hand saw diamond disc |
| CN106493430A (en) * | 2017-01-14 | 2017-03-15 | 河北小蜜蜂工具集团有限公司 | A kind of three standard porous lasers welding diamond disc |
| CN207156165U (en) * | 2017-07-13 | 2018-03-30 | 青岛新韩金刚石工业有限公司 | A kind of special laser welding saw blade of Granite-cutting |
| CN107385346A (en) * | 2017-07-17 | 2017-11-24 | 江苏锋泰工具有限公司 | Compact diamond tool prealloy powder and preparation method thereof |
| CN109267461A (en) * | 2017-07-17 | 2019-01-25 | 江苏锋泰工具有限公司 | Laser welding diamond saw bit |
| CN209408964U (en) * | 2018-10-19 | 2019-09-20 | 江苏乐泰超硬材料有限公司 | Composite diamond cutter head and diamond saw blade |
| CN109736712A (en) * | 2019-01-08 | 2019-05-10 | 江苏友美工具有限公司 | Laser welding diamond core bit |
| CN109736713A (en) * | 2019-01-08 | 2019-05-10 | 江苏友美工具有限公司 | A kind of diamond core bit and its laser welding preparation process |
| CN110370467A (en) * | 2019-06-05 | 2019-10-25 | 江苏友美工具有限公司 | A kind of Laser Welding contact pin and its preparation process reducing Cutting Drag |
| CN110394901A (en) * | 2019-06-17 | 2019-11-01 | 丹阳市龙威工具有限公司 | It is bent the diamond saw blade and its preparation process of cutting |
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