A nano-filler modified diamond grinding wheel for a five-axis tool grinder and a preparation method thereof
Patent Information
- Application Number
- CN202611047792.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-15
- Publication Date
- 2026-09-15
AI Technical Summary
现有技术多采用单一粒径或简单双峰分布的金刚石磨料，单一粒径磨料堆积密度低，导致砂轮结构疏松，结合剂对磨料的把持力不足，机械强度与耐磨性较差，若单纯采用粗粒度磨料，切削冲击集中，易导致工件崩边；若采用细粒度磨料，则容屑空间受限，极易引发砂轮堵塞及磨削烧伤；
该装置中未涉及部分均与现有技术相同或可采用现有技术加以实现，本发明
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Abstract
Description
Technical Field
[0001] This application relates to the field of grinding wheel technology, and in particular to a nanofiller modified diamond grinding wheel for a five-axis tool grinder and its preparation method. Background Technology
[0002] Five-axis linkage tool grinders are widely used in the machining of high-precision, complex-shaped tools. They place stringent requirements on the grinding efficiency, surface accuracy retention, and cutting edge quality of the diamond grinding wheels. The performance of the grinding wheel depends on the synergistic effect of the diamond abrasive, bonding agent, and various fillers.
[0003] The following technical problems still exist in the existing resin-bonded diamond grinding wheel preparation technology: Existing technologies mostly use diamond abrasives with a single particle size or a simple bimodal distribution. Single-particle abrasives have low bulk density, resulting in a loose grinding wheel structure, insufficient holding force of the binder on the abrasive, and poor mechanical strength and wear resistance. If coarse-grained abrasives are used alone, the cutting impact is concentrated, which can easily lead to workpiece chipping. If fine-grained abrasives are used, the chip space is limited, which can easily cause grinding wheel clogging and grinding burns. Diamond surfaces are inert and require modification with silane coupling agents to enhance interfacial bonding with resin binders. Traditional processes typically involve mixing diamonds of different particle sizes and spraying the modification solution onto the surface in a single application. Because the specific surface area of small diamond particles is much larger than that of large particles, the modification solution is preferentially adsorbed by the small particles, resulting in insufficient surface modification of the large particles, which serve as the main cutting edge. This leads to low interfacial shear strength and premature detachment under grinding impact. Furthermore, single-application can easily result in excessively high local concentrations of silane coupling agents, triggering self-polymerization reactions, reducing the effective coupling agent ratio, and further weakening the interfacial bonding effect.
[0004] While nanofillers can significantly improve the strength and thermal conductivity of grinding wheels, they are prone to agglomeration, forming micro-stress concentration points that can actually impair the performance of the grinding wheel. Summary of the Invention
[0005] Therefore, it is necessary to provide a nano-filler modified diamond grinding wheel for a five-axis tool grinder and its preparation method to address the above-mentioned technical problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder mainly includes the following steps: Step 1: Preparation and pretreatment of raw materials; Raw materials to be prepared: diamond abrasive, resin binder, nanofiller, auxiliary filler, modified liquid and wetting agent carrier, wherein the diamond abrasive includes large particles, medium particles and small particles according to particle size; Diamond abrasives were packaged according to particle size; silane coupling agent was divided into three parts by volume and diluted with anhydrous ethanol to prepare large particle wetting mother liquor, medium particle wetting mother liquor and small particle wetting mother liquor respectively; nanofiller was prepared into a stable nano suspension slurry; Step 2: Graded wetting and mixing; First, large particles are fed into a mixer, and the large particle wetting mother liquor is sprayed onto them and mixed to complete the surface modification of the large particles. The medium particle wetting mother liquor is sprayed onto the medium particles and added to the mixer for mixing. The small particle wetting mother liquor is sprayed onto the small particles and added to the mixer for mixing. Then, the nano suspension slurry is injected and mixed evenly to obtain composite abrasive. Step 3: Resin bonding and granulation; Add auxiliary filler and resin binder powder to the composite abrasive, mix evenly, dry, crush, and sieve to obtain shaped particles; Step four: Hot pressing and curing; The shaped particles are hot-pressed to form a grinding wheel blank, which is then subjected to post-curing treatment. Step 5, finishing; The grinding wheel blank is then machined, dynamically balanced, and dressed to obtain the finished product.
[0007] Preferably, the mass ratio of large particles, medium particles, and small particles in the diamond abrasive is 5:3:2, the particle size of the large particles is 2-3 times that of the medium particles, and the particle size of the medium particles is 3-4 times that of the small particles.
[0008] Preferably, the raw materials are in the following mass ratio: 15-18 parts diamond abrasive; 32-36 parts of resin binder; 18-25 parts of nanofiller.
[0009] Preferably, the preparation process of the nano-suspension slurry in step one is as follows: the nanofiller is added to anhydrous ethanol, magnetically stirred for 10 minutes, ultrasonically treated with 400W power for 30 minutes, and finally sheared and dispersed at 8000rpm for 15 minutes.
[0010] Preferably, the graded wetting and mixing in step two specifically includes: Spray large-particle wetting mother liquor into the running mixer, and stir for 5 minutes after spraying. After adding medium-sized particles, spray the medium-sized particles to moisten the mother liquor, and stir for 8 minutes. After adding the small particles, spray the small particles to wet the mother liquor, start the disperser to disperse at high frequency for 2-3 minutes, and then mix at 15-20 rpm for 10 minutes; Inject the nano-suspension slurry, start the disperser to process for 3 minutes, and then mix at 15 rpm for 15 minutes.
[0011] Preferably, the process parameters for hot pressing in step four are as follows: mold preheating temperature 200°C, first apply 5MPa pre-pressure for venting for 10 seconds, then increase the pressure to 35MPa, raise the temperature to 210°C and hold the pressure and temperature for 30 minutes, and then naturally cool to below 100°C to remove the mold.
[0012] Preferably, the process parameters for the post-curing treatment in step four are: drying at 80℃, 100℃, 120℃, and 150℃ for 2 hours each, then drying at 180℃ for 4 hours, and then cooling to room temperature.
[0013] Preferably, in step one, the auxiliary filler is first dried at 120°C for 2 hours, then ground and sieved for later use.
[0014] Preferably, the finishing process in step five uses a diamond roller, and the finishing is performed in a slow feed and multiple reciprocating motion.
[0015] A nanofiller-modified diamond grinding wheel for a five-axis tool grinder is prepared by the method described above.
[0016] Compared with the prior art, the present invention provides a nano-filler modified diamond grinding wheel for a five-axis tool grinder and its preparation method, which has the following beneficial effects: The parts of this device not described herein are the same as or can be implemented using existing technology. This invention employs a graded wetting and mixing process, spraying silane coupling agent onto large, medium, and small diamond particles in three stages according to a specific ratio. This design takes into account the difference in specific surface area of abrasive particles with different particle sizes, ensuring that the surface of the large diamond particles, which constitute the main part of the grinding load, is fully modified and coated, effectively avoiding the self-polymerization of the coupling agent, and significantly improving the chemical bonding strength between the diamond and resin interfaces.
[0017] This invention achieves dense packing of abrasives through a three-stage design of large, medium, and small particles, increasing packing density and significantly enhancing the rigidity of the grinding wheel; the through-pores formed between the large particles constitute an ideal chip-holding space, reducing apparent porosity and effectively preventing grinding blockage while ensuring the sharpness of the grinding wheel. In this invention, large particles bear the main cutting amount, while medium and small particles effectively disperse the cutting impact load and perform step-by-step finishing on the workpiece surface, significantly reducing the chipping defects of the machined tool. The nanofiller of this invention is introduced in the form of a stable suspension slurry after being treated by ultrasonic and shear composite dispersion process, which achieves a diffuse distribution in the grinding wheel matrix and plays a significant role in strengthening and thermal conductivity. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0019] Example 1: A nano-filler modified diamond grinding wheel for a five-axis tool grinder mainly comprises the following raw materials: diamond abrasive, resin binder, nanofiller, auxiliary filler, modifying liquid, and wetting agent carrier. The proportions of each raw material are as follows: diamond abrasive 15-18 parts, resin binder 32-36 parts, nanofiller 18-25 parts. The resin binder is phenolic resin or polyimide. The nanofiller is a mixture of nano-SiO2, nano-ZnO, nano-Fe2O3, and nano-MgO. The auxiliary filler includes one or more of cryolite, Cr2O3, Cu powder, and silicon carbide. The modifying liquid is a silane coupling agent, used at a dosage of 2-3 mL / kg based on the diamond content. The wetting agent carrier is anhydrous ethanol. In existing technologies, diamond abrasive particles are mostly uniform in size, resulting in low abrasive packing density. This leads to a loose diamond wheel structure, weakened bonding force, and reduced mechanical strength and wear resistance. If coarse-grained diamond abrasive is used, the concentrated cutting impact can easily cause workpiece chipping, affecting the rough grinding effect. If fine-grained diamond abrasive is used, the limited chip space can easily cause wheel clogging and burning, affecting the finishing effect. Therefore, this invention employs a multi-level particle size distribution, where the diamond abrasive comprises large, medium, and small particles, with the ratio of different particle sizes being large:medium:small = 5:3:2. The large particles have a diameter 2-3 times that of the medium particles, and the medium particles have a diameter 3-4 times that of the small particles. The large particles act as the main cutting edge, bearing the majority of the grinding load and forming large-pore chip channels. The medium particles fill the triangular holes of the large particles to transition the cutting trajectory, increase the packing density, and share the impact load of the large particles. The small particles further fill secondary micropores, increasing the packing density and forming a finishing edge. This disperses the cutting impact during rough grinding and prevents the workpiece from chipping.
[0020] Example 2: In the conventional preparation process, a wetting agent and a modifying liquid are required for the surface of the diamond abrasive. The wetting agent is used to reduce the friction during the mixing of the diamond abrasive, and the modifying liquid is used for pre-bonding the diamond. Specifically, the diamond abrasive is added to the mixing container all at once, followed by spraying or pouring in a wetting agent containing a silane coupling agent, and then uniformly stirred and dried. Due to the different particle sizes of the diamond abrasive, there are natural differences in the surface roughness or flatness. The specific surface area of small particles is much larger than that of large particles. After the silane coupling agent and wetting agent are poured in, they are preferentially adsorbed by the small particles. The surface of the large particles cannot fully contact the silane coupling agent and wetting agent. Since the large particles are the main force bearing the cutting impact, the interfacial shear strength of the large particles is low, making them easy to fall off during grinding. Large particles have less wetting agent on their surface, and the high frequency of contact and friction on their surface make them prone to wear and gradual passivation, affecting the subsequent polishing effect. Secondly, the silane coupling agent needs to be hydrolyzed to generate silanol, which then condenses with the -OH on the diamond surface and reacts with the resin at the other end. If all the silane is poured into the diamond at once, there is a risk of silane self-polymerization, which reduces the effective silane coupling agent. Therefore, this invention mixes large, medium and small particles in sequence and adds them to the mixer. Before each addition of diamond abrasive, the mixed silane coupling agent and anhydrous ethanol are sprayed in simultaneously. Specifically, the volume ratio of the silane coupling agent added in three parts is 4:4.5:1.5, and the three parts of silane coupling agent are diluted with anhydrous ethanol respectively. Specifically, a method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder mainly includes the following steps: Step 1: Preparation and pretreatment of raw materials; The raw materials are prepared according to the following mass fraction ratio: 15-18 parts diamond abrasive, 32-36 parts resin binder, and 18-25 parts nanofiller. The resin binder is phenolic resin, and the nanofiller is a mixture of nano-SiO2, nano-ZnO, nano-Fe2O3, and nano-MgO. The auxiliary filler is one or more of cryolite, Cr2O3, Cu powder, and silicon carbide. The modifying liquid is a silane coupling agent, with a dosage of 2-3 mL / kg based on the diamond content. The wetting agent carrier is anhydrous ethanol. The diamond abrasive is prepared and packaged according to the ratio of large particles: medium particles: small particles = 5:3:2. The silane coupling agent was divided into three parts in a ratio of 4:4.5:1.5, and the three parts of silane were diluted with an appropriate amount of anhydrous ethanol to prepare large particle wetting mother liquor, medium particle wetting mother liquor and small particle wetting mother liquor. The nanofiller was added to anhydrous ethanol and first stirred with a magnetic stirrer for 10 minutes to initially wet it. Then it was transferred to an ultrasonic cell disruptor and ultrasonically treated for 30 minutes at a power of 400W. Subsequently, a high-speed shear emulsifier was used to shear and disperse it at a speed of 8000rpm for 15 minutes to obtain a stable nano suspension slurry, so as to break the soft agglomeration of nanoparticles and prevent them from forming stress concentration points in the grinding wheel matrix. The auxiliary filler was dried in a 120℃ oven for 2 hours to remove moisture. After being taken out, it was slightly ground, sieved and set aside to prevent moisture from affecting the resin curing and silane hydrolysis effect. Step 2: Grade and wet the mixed diamond abrasive. Large particles are fed into a mixer and rotated at 20 rpm. A peristaltic pump slowly and evenly sprays the large particle wetting solution onto the tumbling diamond. After spraying, stirring continues for 5 minutes to ensure that the silane coupling agent and wetting agent fully coat the surface of the large particles, ensuring the interfacial bonding strength of the large particles, reducing friction during mixing, and reducing passivation. At this time, the proportion of silane coupling agent is relatively small compared to the fraction of diamond abrasive. Combined with the spraying method, this reduces the risk of self-polymerization of silane coupling agent, increases the effective content of silane coupling agent, and prevents small or medium particles from preferentially absorbing wetting agent and silane coupling agent. This makes it easier for the large particles, as the main cutting part, to combine with the resin in subsequent steps, improving their interfacial shear strength. The medium-sized particles are sprayed with a wetting solution using a peristaltic pump and added to a mixer that has already coated the large particles. The mixture is then stirred at 20 rpm for 8 minutes to fill the large particles. The silane coating on the surface of the large particles acts as a bridge between the large particles and the subsequent small particles. The wetting solution for the medium-sized particles is added to the medium particles in advance to prevent the risk of self-polymerization of the silane coupling agent. At this time, the proportion of silane coupling agent is relatively high compared to the diamond abrasive. The excess silane coupling agent will come into contact with the large particles as they are mixed, and the large particles will be supplemented with additional material to ensure the silane coupling agent on the surface of the large particles. In addition, some excess will exist in the gap between the large and medium particles, providing a certain margin for the addition of the subsequent small particles. Add small particles to the mixer, maintain a speed of 20 rpm, and use a peristaltic pump to spray the small particles to wet the mother liquor. Start the disperser in the mixer to disperse the small particles gathered at the bottom at high frequency for 2-3 minutes to prevent fine powder agglomeration. Turn off the disperser and restore the mixer speed to 20 rpm. Mix for 10 minutes. At this time, the proportion of silane coupling agent is relatively small compared to the diamond abrasive. This allows the small particles without silane coupling agent coating to absorb the remaining silane coupling agent from the previous mixing step when they enter the gap between the large and medium particles, resulting in more thorough mixing. The nano-suspension slurry prepared in step one is slowly injected into the mixer through a peristaltic pump. The disperser is restarted and processed for 3 minutes to ensure that the nanofiller is embedded in the gaps of the abrasive packing and tightly bonded to the silane film. Finally, it is mixed at a speed of 15 rpm for 15 minutes to complete the composite of the three-grade abrasive and nanofiller, so as to use small particles to fill the micropores and improve the packing density. Step 3: Combining and granulating the resin and diamond; Add 6 parts of pretreated auxiliary filler to the mixer and mix for 5 minutes. Add phenolic resin powder and continue mixing for 10 minutes until the resin powder is evenly adhered to the surface of all the wet solid particles to form a loose molding material. Transfer the molding material to a tray and place it in an electric heating constant temperature drying oven. Set the oven to 80°C and dry for 3 hours to remove anhydrous ethanol. Take out the dried block material and coarsely crush it using a universal pulverizer. Then pass it through an 80-mesh standard inspection sieve to obtain molding particles with good flowability to complete the composite of binder and diamond abrasive. Granulation is then used to obtain a particle morphology suitable for hot pressing. Step four: Curing in a hot press molding machine; Heat the mold to 200℃, load the molding particles and matrix into the mold together, place the mold on a hydraulic press, apply a pre-pressure of 5MPa, and vent for 10 seconds; then increase the pressure to 35MPa, raise the temperature to 210℃, hold the pressure and temperature for 30 minutes, and allow it to cool naturally to below 100℃ before demolding and removing the grinding wheel blank. This process allows the resin to melt, flow, and impregnate the abrasive under high temperature and pressure, and to cross-link and cure, forming a grinding wheel matrix with a certain strength. The grinding wheel substrate is placed in a drying oven and dried at 80℃, 100℃, 120℃ and 150℃ for 2 hours in sequence, and then dried at 180℃ for 4 hours. After that, it is cooled to room temperature to further complete the cross-linking reaction of the resin, eliminate internal stress, and maximize the mechanical strength and heat resistance of the grinding wheel. Step 5: Finish the grinding wheel; Turn the outer diameter and two end faces of the grinding wheel to ensure dimensional accuracy and parallelism. Then, finely grind the end face of the base body on a surface grinder to ensure the flatness of the mounting reference surface. Install the grinding wheel on the dynamic balancing machine, start the machine and check the imbalance. Adjust the balance repeatedly by adding or removing counterweights in the flange balance groove. Use a diamond roller to dress the working surface of the grinding wheel, and use a slow feed and multiple reciprocating motion to avoid damaging small particles. After dressing, blow it clean with compressed air and observe it under a microscope to ensure that the diamond cutting edge is evenly exposed and the chip space is unobstructed. Test the hardness, appearance, bore diameter, and outer diameter runout of the grinding wheel; those that pass the test are labeled and put into storage.
[0021] Comparative Example 1: A method for preparing a nanofiller modified diamond grinding wheel for a five-axis tool grinder is basically the same as that in Example 2, except that only a single-particle diamond is used.
[0022] Comparative Example 2: A method for preparing a nanofiller modified diamond grinding wheel for a five-axis tool grinder is basically the same as that in Example 2, except that in step two, large, medium and small diamond particles are added into the mixer at once, and the silane coupling agent is sprayed at once. Comparative Example 3: A method for preparing a nanofiller modified diamond grinding wheel for a five-axis tool grinder is basically the same as that in Example 2, except that the silane coupling agent is distributed in a volume ratio of 5:3:2 in step two.
[0023] Comparative Example 4: A method for preparing a nanofiller modified diamond grinding wheel for a five-axis tool grinder is basically the same as that in Example 2, except that the silane coupling agent is distributed in a volume ratio of 4.5:4:1.5 in step two.
[0024] Comparative Example 5: A method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder is basically the same as that in Example 2, except that the mass ratio of diamond abrasive particles is large particles: medium particles: small particles = 4.5:3:2.5.
[0025] Comparative Example 6: A method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder is basically the same as that in Example 2, except that the mass ratio of diamond abrasive particles is large particles: medium particles: small particles = 4.75:3:2.25.
[0026] Comparative Example 7: A method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder is basically the same as that in Example 2, except that the mass ratio of diamond abrasive particles is large particles: medium particles: small particles = 5.5:3:1.5.
[0027] Comparative Example 8: A method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder is basically the same as that in Example 2, except that the mass ratio of diamond abrasive particles is large particles: medium particles: small particles = 5.25:3:1.75.
[0028] Under the same conditions, the performance of the grinding wheel samples prepared in Example 2, Comparative Example 1, Comparative Example 2, and Comparative Example 3 was tested. Specifically: The bulk density and apparent porosity of the grinding wheel were determined. The grinding wheel was cut into standard strip specimens, and a three-point bending test was performed using a universal testing machine with a span of 30 mm and a loading rate of 0.5 mm / min to test the bending strength. After grinding, the cutting edge of the tool was observed using an ultra-depth-of-field microscope. Ten cutting edges were randomly selected to measure the chipping width and the average value was taken to detect the chipping width of the workpiece. Thermogravimetric analyzer was used to test thermal stability by heating the temperature from room temperature to 700℃ at a rate of 10℃ / min in air atmosphere and recording the temperature (Td5%) when the weight loss was 5%. The results are shown in Table 1 below: Table 1: Performance Test Comparison Table According to Table 1: Performance Test Comparison Table, Example 2 achieved a significant increase in abrasive packing density while effectively reducing apparent porosity. This invention not only improves the overall density of the grinding wheel but also retains the necessary through-holes, thereby maintaining good chip removal capability while increasing abrasive packing density. The bending strength of Example 2 was significantly improved. By adding abrasive in stages and spraying silane coupling agent simultaneously, the surface of large particles, which are the main cutting force, was fully modified and covered, which significantly enhanced the holding force of the resin binder on large particles and improved the interfacial shear strength and overall mechanical properties of the grinding wheel. In Example 2, the grinding ratio was significantly improved, while the workpiece chipping width was significantly reduced, effectively avoiding workpiece edge chipping caused by excessive cutting force and ensuring the integrity of the machined surface. In Example 2, the thermal weight loss initiation temperature was significantly increased, which increased the upper limit of the grinding wheel's heat resistance in high-temperature grinding environments. This effectively reduced the risk of damage caused by heat accumulation, thereby significantly improving the wear resistance and service life of the grinding wheel while ensuring the maintenance of surface accuracy under high-speed grinding conditions.
Claims
1. A method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder, characterized in that, The main steps include: Step 1: Preparation and pretreatment of raw materials; Raw materials to be prepared: diamond abrasive, resin binder, nanofiller, auxiliary filler, modified liquid and wetting agent carrier, wherein the diamond abrasive includes large particles, medium particles and small particles according to particle size; Diamond abrasives were packaged according to particle size; silane coupling agent was divided into three parts by volume and diluted with anhydrous ethanol to prepare large particle wetting mother liquor, medium particle wetting mother liquor and small particle wetting mother liquor respectively; nanofiller was prepared into a stable nano suspension slurry; Step 2: Graded wetting and mixing; First, large particles are fed into a mixer, and the large particle wetting mother liquor is sprayed and mixed to complete the surface modification of the large particles; the medium particle wetting mother liquor is sprayed into the medium particles and added into the mixer for mixing; the small particle wetting mother liquor is sprayed into the small particles and added into the mixer for mixing; then the nano suspension slurry is injected and mixed evenly to obtain composite abrasive. Step 3: Resin bonding and granulation; Add auxiliary filler and resin binder powder to the composite abrasive, mix evenly, dry, crush, and sieve to obtain shaped particles; Step four: Hot pressing and curing; The shaped particles are hot-pressed to form a grinding wheel blank, which is then subjected to post-curing treatment. Step 5, finishing; The grinding wheel blank is then machined, dynamically balanced, and dressed to obtain the finished product.
2. The method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder according to claim 1, characterized in that, The diamond abrasive has a mass ratio of large, medium, and small particles of 5:3:
2. The particle size of the large particles is 2-3 times that of the medium particles, and the particle size of the medium particles is 3-4 times that of the small particles.
3. The method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder according to claim 1, characterized in that, The raw materials are in the following mass ratios: 15-18 parts diamond abrasive; 32-36 parts of resin binder; 18-25 parts of nanofiller.
4. The method for preparing a nano-filler modified diamond grinding wheel for a five-axis tool grinder according to claim 1, characterized in that, The preparation process of the nano-suspension slurry in step one is as follows: the nanofiller is added to anhydrous ethanol, magnetically stirred for 10 minutes, ultrasonically treated with 400W power for 30 minutes, and finally sheared and dispersed at 8000rpm for 15 minutes.
5. The method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder according to claim 1, characterized in that, The graded wetting and mixing process described in step two specifically includes: Spray large-particle wetting mother liquor into the running mixer, and stir for 5 minutes after spraying. After adding medium-sized particles, spray the medium-sized particles to moisten the mother liquor, and stir for 8 minutes. After adding the small particles, spray the small particles to wet the mother liquor, start the disperser to disperse at high frequency for 2-3 minutes, and then mix at 15-20 rpm for 10 minutes; Inject the nano-suspension slurry, start the disperser to process for 3 minutes, and then mix at 15 rpm for 15 minutes.
6. The method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder according to claim 1, characterized in that, The hot pressing process parameters described in step four are as follows: mold preheating temperature 200℃, first apply 5MPa pre-pressure to exhaust for 10 seconds, then increase the pressure to 35MPa, raise the temperature to 210℃ and hold the pressure and temperature for 30 minutes, and then naturally cool to below 100℃ to remove the mold.
7. The method for preparing a nano-filler modified diamond grinding wheel for a five-axis tool grinder according to claim 1, characterized in that, The post-curing process parameters in step four are as follows: drying at 80℃, 100℃, 120℃, and 150℃ for 2 hours each, then drying at 180℃ for 4 hours, and then cooling to room temperature.
8. The method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder according to claim 1, characterized in that, In step one, the auxiliary filler is first dried at 120°C for 2 hours, then ground and sieved for later use.
9. The method for preparing a nanofiller-modified diamond grinding wheel for a five-axis tool grinder according to claim 1, characterized in that, The dressing process described in step five uses a diamond roller, with slow feed and multiple reciprocating motions.
10. A nanofiller-modified diamond grinding wheel for a five-axis tool grinder, characterized in that, It is prepared by the preparation method described in claim 1.