Asymmetric-diameter oscillating heat pipe grinding wheel, and manufacturing method therefor and use thereof

Abstract

The present application relates to an asymmetric-diameter oscillating heat pipe grinding wheel, and a manufacturing method therefor and the use thereof. The grinding wheel mainly consists of a grinding wheel front end cover, an oscillating heat pipe base, and a grinding wheel rear end cover, the three parts being laser-welded into an integrated structure, wherein oscillating heat pipe flow channels are arranged in a staggered manner on each of the front and rear surfaces of the oscillating heat pipe base; and the oscillating heat pipe flow channels include a plurality of single-loop asymmetric-diameter structures that are connected end to end. The structure can enable, by means of variable-diameter structures, different pressure gradients to be formed inside the flow channels, thereby providing an additional pressure difference for the flow of an internal working medium, and promoting the internal working medium of oscillating heat pipes to form a stable unidirectional cyclic motion. The asymmetric-diameter oscillating heat pipe grinding wheel can still maintain an efficient heat transfer performance and operating stability under high-speed grinding conditions.

Description

Asymmetric pipe diameter oscillating heat pipe grinding wheel and manufacturing method and application thereof TECHNICAL FIELD

[0001] The present application relates to an asymmetric pipe diameter oscillating heat pipe grinding wheel for high-speed grinding and a manufacturing method thereof. The grinding wheel structure utilizes an asymmetric pipe diameter design, forming different pressure gradients inside, providing additional pressure difference, promoting the stable one-way circulation movement of the working medium inside the oscillating heat pipe, and realizing the high-efficiency and stable heat transfer capacity of the oscillating heat pipe under high-speed grinding conditions. BACKGROUND

[0002] As a passive heat transfer element, oscillating heat pipes are known for their high-efficiency heat conduction performance. In the field of grinding processing, especially under high-speed grinding conditions, the air barrier formed by the high-speed rotation of the grinding wheel hinders the cooling liquid from entering the grinding arc area, making it difficult to effectively dissipate the grinding heat, which leads to workpiece burn and seriously affects the processing precision and tool life. To solve this problem, the oscillating heat pipe grinding wheel as a new cooling method processes the flow channel of the oscillating heat pipe inside the grinding wheel body, utilizes the heat conduction capacity of the oscillating heat pipe, and dissipates a part of the grinding heat through the grinding wheel, thereby reducing the grinding temperature and avoiding workpiece burn.

[0003] The current oscillating heat pipe grinding wheel internal flow channel adopts the same pipe diameter, i.e., a symmetric pipe diameter structure. Studies have shown that the capillary force of the symmetric pipe diameter structure oscillating heat pipe under rotation conditions is weakened, and the gas-liquid plug separation phenomenon occurs. The heat transfer performance gradually weakens as the rotation speed increases. To improve this phenomenon, an asymmetric pipe diameter structure oscillating heat pipe is proposed. By distributing different pipe diameters, an additional pressure difference is introduced inside the oscillating heat pipe to enhance the driving force of the oscillating heat pipe and promote the circulation and oscillation movement of the working medium inside the oscillating heat pipe. In practical applications, this structure can significantly improve the heat transfer performance of the oscillating heat pipe under rotation conditions, ensuring that even under severe conditions such as high-speed grinding, heat can be efficiently dissipated, thereby avoiding workpiece thermal damage and improving processing quality and efficiency. Therefore, the asymmetric pipe diameter structure oscillating heat pipe has broad application prospects and great value potential in high-end manufacturing, precision machining, and other fields.

[0004] However, the specific processing technology of the asymmetric pipe diameter structure needs to be further improved. SUMMARY

[0005] The purpose of the present application is to solve the problems in the prior art. The present application provides an asymmetric pipe diameter oscillating heat pipe grinding wheel for high-speed grinding and a manufacturing method thereof. The internal structure of the grinding wheel structure adopts an oscillating heat pipe flow channel with a non-uniform pipe diameter design, increases the internal pressure, increases the driving force of the oscillating heat pipe working medium, promotes the internal circulation of the working medium under high-speed conditions, and improves the heat transfer efficiency. The stable and efficient heat conduction capacity of the grinding wheel structure under high-speed grinding is ensured.

[0006] Technical solution: In order to achieve the above-mentioned purpose of the application, the following technical solutions are adopted: An asymmetric pipe diameter oscillating heat pipe grinding wheel for high-speed grinding, mainly composed of a grinding wheel front end cover, an oscillating heat pipe base, a grinding wheel rear end cover and a plug. The front and rear end covers of the grinding wheel both contain inner hole structure, fin structure and welding step. The front and rear end covers are welded on the oscillating heat pipe base, and the flow channel grooves on the base are connected to form an integral oscillating heat pipe asymmetric pipe diameter flow channel.

[0007] The oscillating heat pipe base inside the asymmetric pipe diameter oscillating heat pipe grinding wheel mainly includes an asymmetric pipe diameter flow channel, a base inner hole, a grinding wheel working surface and a base step structure. A vacuum extraction and liquid injection port and a plug hole are also processed for injecting working medium and sealing. The asymmetric pipe diameter oscillating heat pipe flow channel is mainly composed of multiple oscillating heat pipe single loops arranged in a staggered manner on the front and rear surfaces of the base and connected in series. Each single loop oscillating heat pipe has a non-uniform pipe diameter, the evaporation end and the single-sided adiabatic section have one pipe diameter, and the condensation end and the other side of the adiabatic section have another pipe diameter. There are two variable pipe diameter positions on the single loop oscillating heat pipe. In order to ensure the consistency of the depth of the oscillating heat pipe flow channel, the diameter of the flow channel is calculated using the hydraulic diameter. The evaporation end of the oscillating heat pipe is a through-hole structure perpendicular to the base plate. This asymmetric pipe diameter structure can increase the pressure in the pipe, increase the driving force of the working medium of the oscillating heat pipe, promote the one-way circulation of the working medium, and enhance the heat transfer performance. A welding step is also processed at the mounting position of the base plate. After vacuum extraction and liquid injection, the plug and a sealing ring are used for sealing, and an annular groove is left on the plug.

[0008] The entire asymmetric pipe diameter oscillating heat pipe grinding wheel corresponds to the internal oscillating heat pipe base plate. The outer circumferential surface of the grinding wheel, i.e. the working surface of the grinding wheel, corresponds to the evaporation end of the oscillating heat pipe. The evaporation end of the asymmetric pipe diameter oscillating heat pipe is uniformly arranged on the working surface of the grinding wheel. The condensation end of the oscillating heat pipe flow channel corresponds to the fin structure of the front and rear end covers.

[0009] When the asymmetric pipe diameter oscillating heat pipe grinding wheel grinds a workpiece, the grinding heat generated in the grinding arc area during grinding is transferred to the evaporation end of the asymmetric pipe diameter oscillating heat pipe through the working layer of the grinding wheel. The internal working medium forms a gas-liquid plug to transfer heat through phase change and gas-liquid plug oscillation.

[0010] The application also provides a manufacturing method of an asymmetric pipe diameter oscillating heat pipe grinding wheel for high-speed grinding, which comprises the following steps: Step 1: manufacturing the plug and the front and rear end covers of the grinding wheel to meet the size requirements; Step 2: manufacturing a round plate with a certain machining allowance as the oscillating heat pipe base plate. The size of the asymmetric pipe diameter is calculated according to the rectangular hydraulic radius formula, which is as follows:

[0011] wherein R is the rectangular hydraulic radius of the flow channel (mm), and a and b are the width and height of the rectangular flow channel (mm).

[0012] Ensure that the height of two different pipe diameter flow channel is same. More than one asymmetric pipe diameter flow channel of oscillating heat pipe is staggered machined on the front and back surface of the round plate, which ensures the uniform distribution of flow channel. The variable pipe diameter position is set at the position where the evaporation end of the oscillating heat pipe flow channel meets the adiabatic section. A through hole is machined at a certain position from the outer circle of the round plate as the evaporation end of the oscillating heat pipe.

[0013] Step three, a step structure is machined on the inner hole and outer circle position of the oscillating heat pipe substrate as the welding position, which matches the front and back end surface of the grinding wheel.

[0014] Step four, the front and back end surface of the grinding wheel is respectively sealed and assembled with the step structure on the upper and lower surface of the oscillating heat pipe substrate and welded, so that the asymmetric pipe diameter flow channel becomes a continuous flow channel; the oscillating heat pipe structure on the front and back surface of the oscillating heat pipe substrate forms a multi-loop asymmetric oscillating heat pipe channel which is only connected with the outside through the through hole of the plug.

[0015] Step five, the outer circle of the grinding wheel is finished to meet the size requirement, and the coaxiality and round runout of the grinding wheel are also required; Step six, abrasive particles are connected on the outer peripheral surface of the asymmetric pipe diameter oscillating heat pipe grinding wheel by electroplating or brazing process to form an abrasive layer.

[0016] Step seven, the plug hole of the plug is connected with the vacuum pump and the liquid injection device, after vacuumizing and liquid injection, the sealing ring is put into the annular groove of the plug, and the plug is screwed into the plug hole to form a complete seal; that is, the asymmetric pipe diameter oscillating heat pipe grinding wheel is completed. Beneficial effects: The asymmetric pipe diameter oscillating heat pipe grinding wheel of the application can be applied in high-speed grinding conditions, and the internal working medium circulation movement is enhanced by the pressure of the asymmetric pipe diameter to improve the heat transfer performance. The oscillating heat pipe can still maintain high and stable heat transfer capacity under high-speed grinding conditions, and the grinding heat damage control and high-efficiency cooling can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a schematic diagram of the overall structure of the asymmetric pipe diameter oscillating heat pipe grinding wheel; Fig. 2 is an exploded view of the structure of the asymmetric pipe diameter oscillating heat pipe grinding wheel; Fig. 3 is a schematic diagram of the structure of the front end cover 1 of the grinding wheel; Fig. 4 is a schematic diagram of the structure of the internal oscillating heat pipe substrate 2 of the grinding wheel; Fig. 5 is a schematic diagram of the structure of the asymmetric pipe diameter flow channel 2-1 of the oscillating heat pipe; Fig. 6 is a schematic diagram of the structure of the rear end cover 3 of the grinding wheel; Fig. 7 is a schematic diagram of the structure of the plug 4 of the grinding wheel; Fig. 8 is a simulation result diagram of the asymmetric pipe diameter oscillating heat pipe; and Fig. 9 is a simulation result diagram of the symmetric pipe diameter oscillating heat pipe.

[0018] Explanation of main reference numerals in the figures: 1 - front end cover of grinding wheel, 1-1 - fin, 1-2 - inner hole of front end cover, 1-3 - welding step of front end cover; 2 - base of oscillating heat pipe, 2-1 - asymmetric pipe diameter flow channel, 2-2 - vacuumizing and liquid injecting port, 2-3 - plug hole, 2-4 - inner hole of base, 2-5 - step of base, 2-6 - working surface; 3 - rear end cover of grinding wheel, 3-1 - fin, 3-2 - inner hole of rear end cover, 3-3 - welding step of rear end cover, 4 - plug of grinding wheel, 4-1 - annular groove, A - evaporating end of oscillating heat pipe, B - condensing end of oscillating heat pipe, C - adiabatic section, D - position of variable pipe diameter. DETAILED DESCRIPTION

[0019] In order to make the person in the technical field better understand the technical solutions in the patent application, the technical solutions in the application are described clearly and completely below in combination with the drawings in the application. Obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative work should belong to the scope of protection of the application.

[0020] The technical solutions of the application will be described in detail below in combination with the embodiments and the drawings. Embodiments

[0021] Fig. 1 is a schematic diagram of the overall structure of the asymmetric pipe diameter oscillating heat pipe grinding wheel for high-speed grinding according to the application, and Fig. 2 is an exploded view of the structure of the asymmetric pipe diameter oscillating heat pipe grinding wheel according to the application. Referring to Figs. 1 and 2, the asymmetric pipe diameter oscillating heat pipe grinding wheel for high-speed grinding according to the application comprises a front end cover 1 of grinding wheel, a base 2 of oscillating heat pipe, a rear end cover 3 of grinding wheel and a plug 4 of grinding wheel. The front and rear end covers are welded on the front and rear surfaces of the base of oscillating heat pipe, so as to seal the flow channel on the base 2 completely to form a continuous oscillating heat pipe flow channel. The base 2 of oscillating heat pipe is provided with a plug hole, through which the oscillating heat pipe flow channel is vacuumized and injected with liquid, and the plug 4 of grinding wheel is installed in the plug hole 2-3, so as to construct the asymmetric pipe diameter oscillating heat pipe grinding wheel for high-speed grinding, and the outer peripheral surface of the grinding wheel is provided with abrasive grains to form an abrasive layer. In this embodiment, the overall diameter of the asymmetric pipe diameter oscillating heat pipe grinding wheel is 400 mm, and the width of the grinding wheel is 25 mm.

[0022] Figure 3 is a schematic diagram of the structure of the front end cover 1 of the grinding wheel, which includes fin structure 1-1 for forced convection heat exchange, inner hole 1-2 of the front end cover, and welding step 1-3 for positioning and mounting with the oscillating heat pipe base 2. The inner hole diameter of the front end cover 1 is 200 mm, the outer diameter is 400 mm, the thickness is 3 mm, and the welding step height is 2 mm. In this embodiment, the fin structure 1-1 height is 1 mm, and two kinds of combined fins are used, with thicknesses of 1 mm and 4 mm. The overall fin length corresponds to the length of the condensing end of the oscillating heat pipe in the oscillating heat pipe base plate 2, and the length is 30 mm.

[0023] Figure 4 is a schematic diagram of the structure of the oscillating heat pipe base plate 2 inside the grinding wheel, and Figure 5 is a schematic diagram of the structure of the asymmetric pipe diameter flow channel 2-1 of the oscillating heat pipe. In this embodiment, the asymmetric pipe diameter flow channel 2-1 is composed of 36 single-loop oscillating heat pipes, and 18 single-loop flow channels are machined on both sides of the oscillating heat pipe base plate 2. The length of each single-loop oscillating heat pipe flow channel is 80 mm, and it is a non-symmetrical pipe diameter structure, including an evaporation end A, a condensing end B, and an adiabatic section C, and two variable pipe diameter positions D are located at the junctions of the evaporation end A, the condensing end B, and the adiabatic end C. The size of the asymmetric pipe diameter flow channel 2-1 is calculated according to the rectangular hydraulic radius formula to ensure the consistency of the height of the two different pipe diameter flow channels. In this embodiment, the sizes are 2x2 mm 2 and 4x2 mm 2 . The evaporation end A of the asymmetric pipe diameter flow channel 2-1 is a through-hole structure perpendicular to the surface of the base plate 2, with a length consistent with the thickness of the grinding wheel and a diameter of 2 mm. The evaporation end A is located 2 mm away from the working surface 2-6 of the grinding wheel. A vacuum extraction and liquid injection port 2-2 is left at a certain single-loop condensing end B, which is in communication with the plug hole 2-3. At the same time, the inner hole 2-4 of the base plate 2 has a size of 127 mm. In order to facilitate the installation of the end cover, a step structure 2-5 is left near the inner hole.

[0024] Figure 6 is a schematic diagram of the structure of the rear end cover 3 of the grinding wheel, and the overall size and design of the rear end cover 3 are the same as those of the front end cover 1. After the two end covers are installed on the oscillating heat pipe base plate 2, the flow channels on the base plate 2 are completely sealed to form a continuous oscillating heat pipe flow channel.

[0025] Figure 7 is a schematic diagram of the structure of the plug 4 of the grinding wheel. The plug 4 has a diameter of 10 mm and an annular groove 4-1 on the top for installing a sealing ring. The grinding wheel plug 4 is machined in cooperation with the plug hole 2-3.

[0026] The present application also provides a method for manufacturing the above-mentioned asymmetric pipe diameter oscillating heat pipe grinding wheel. The method comprises the following steps.

[0027] Step one, make the size of the grinding wheel plug 4 and the grinding wheel front and rear end cover, and process the inner hole, fin structure and step structure on the front and rear end cover; Step two, process the oscillating heat pipe base plate 2, which is a circular plate with an inner hole. After leaving a processing allowance near the outer edge, process 2mm diameter through holes as the evaporation end A along the circumference, and the distance between each through hole is 20°. According to the formula of rectangular hydraulic radius, the size of the asymmetric pipe diameter is 4×2mm 2 and 2×2mm 2 , respectively, to ensure that the heights of the two different pipe diameter flow channels are the same and uniformly distributed. In this embodiment, a total of 36 asymmetric pipe diameter flow channels 2-1 of the oscillating heat pipe are staggered processed on the front and rear surfaces of the base plate. The variable pipe diameter position D is arranged at the position where the evaporation end A and the condensation end B of the oscillating heat pipe flow channel meet the adiabatic section C.

[0028] Step three, process the step structure on the oscillating heat pipe base plate 2 near the inner hole 2-4 and near the outer edge as the welding position, which matches the grinding wheel front and rear end cover. At the same time, process a 1mm vacuum injection port 2-2 on the condensation end B of a certain flow channel, which is connected to the plug hole 2-3.

[0029] Step four, seal and weld the two grinding wheel front and rear end covers with the step structure on the oscillating heat pipe base plate 2, so that the asymmetric pipe diameter flow channel 2-1 becomes a continuous flow channel; the oscillating heat pipe structure on the front and rear surfaces of the oscillating heat pipe base plate 2 forms a multi-loop asymmetric oscillating heat pipe channel that is only connected to the outside through the plug hole 2-3.

[0030] Step five, finish the outer circle of the grinding wheel to meet the size requirements, and make the coaxiality and roundness of the grinding wheel meet the requirements; Step six, connect abrasive particles to the outer peripheral surface 2-6 of the asymmetric pipe diameter oscillating heat pipe grinding wheel by electroplating or brazing process to form an abrasive layer.

[0031] Step seven, connect the plug hole 2-3 with the vacuum pump and liquid injection device. After vacuumizing and injecting liquid, put the sealing ring into the annular groove 4-1 of the grinding wheel plug 4, and screw the grinding wheel plug 4 into the plug hole 2-3 to form a complete seal; that is, the asymmetric pipe diameter oscillating heat pipe grinding wheel is completed. Embodiment

[0032] To verify the feasibility and effectiveness of the patent, the temperature field of the grinding process of the asymmetric pipe diameter oscillating heat pipe grinding wheel and the symmetric pipe diameter oscillating heat pipe grinding wheel is compared and analyzed to verify the high-efficiency heat exchange capacity of the asymmetric pipe diameter oscillating heat pipe grinding wheel. The simulation adopts the grinding wheel structure described in the implementation case 1, and grinds DD90 single crystal high-temperature alloy material, with a heat flux density of 1×10 8 W / m 2Figure 8 is a simulation diagram of the temperature field of the asymmetric pipe diameter oscillating heat pipe grinding wheel of Example 1. The highest temperature in the grinding arc area is 432℃; Figure 9 is a result diagram of the temperature field of the symmetric pipe diameter oscillating heat pipe grinding wheel. The highest temperature in the grinding arc area is 518℃; it can be seen that the asymmetric pipe diameter oscillating heat pipe grinding wheel can effectively improve the heat transfer efficiency and reduce the workpiece surface temperature compared with the symmetric pipe diameter oscillating heat pipe grinding wheel.

[0033] It can be seen that the application uses the flow channel of the oscillating heat pipe with internal non-uniform pipe diameter to increase the internal pressure, increase the driving force of the working medium of the oscillating heat pipe, promote the internal circulation of the working medium under high-speed conditions, and improve the heat transfer efficiency. The application realizes the stable and efficient heat conduction capacity of the grinding wheel structure under the application of high-speed grinding.

[0034] The above description of various embodiments of the present application is provided to those skilled in the art for the purpose of description. It is not intended to be exhaustive or to limit the application to a single disclosed embodiment. As mentioned above, various alternatives or variations to the described embodiments will be apparent to those skilled in the art. Therefore, although some alternative embodiments have been specifically discussed, other embodiments will be apparent to those skilled in the art from the above description. The application is intended to include all alternatives, modifications and variations from the above discussed embodiments falling within the spirit and scope of the application.

[0035] Although the application is described by embodiments, those skilled in the art know that the application has many modifications and variations without departing from the spirit of the application, and it is hoped that the appended claims include these modifications and variations without departing from the spirit of the application.

Claims

1. An asymmetric diameter oscillating heat pipe grinding wheel characterized by, It comprises: the front and rear end covers of the grinding wheel and the oscillating heat pipe base plate (2); wherein the oscillating heat pipe base plate (2) is a circular plate with an inner hole, and the front and rear surfaces of the base plate are staggered with asymmetric pipe diameter flow channels, and a plug hole is opened near the inner hole of the base plate; the front and rear end covers are welded on the front and rear surfaces of the oscillating heat pipe base plate, so as to seal the asymmetric pipe diameter flow channels on the base plate into an oscillating heat pipe asymmetric pipe diameter flow channel connected at the head and tail, the above-mentioned closed oscillating heat pipe flow channel is vacuumized and injected with liquid through the plug hole, and the grinding wheel plug (4) is installed in the plug hole (2-3) of the oscillating heat pipe, so as to construct an asymmetric pipe diameter oscillating heat pipe grinding wheel for high-speed grinding, and the outer peripheral surface of the grinding wheel is provided with abrasive grains to form an abrasive layer.

2. The asymmetrically-dimensioned oscillating heat pipe grinding wheel of claim 1, wherein, The oscillating heat pipe base plate (2) is staggered with more than one single-loop flow channel on both surfaces, each single-loop oscillating heat pipe flow channel is an asymmetric pipe diameter flow channel (2-1), which comprises an evaporation end (A), a condensation end (B) and an adiabatic section (C), the evaporation end (A) is a through-hole structure perpendicular to the surface of the base plate, which is kept a distance from the outer edge of the base plate and has a length equal to the thickness of the grinding wheel; two variable pipe diameter positions (D) are respectively located at the junctions of the evaporation end (A) and the adiabatic end (C), and the condensation end (B) and the adiabatic end (C); a vacuumizing and liquid injecting port (2-2) is left at any single-loop condensation end (B) and is communicated with the plug hole (2-3).

3. The asymmetric-diameter oscillating heat pipe grinding wheel of claim 1 or 2, wherein, The size of the asymmetric pipe diameter flow channel is calculated according to the following rectangular hydraulic radius formula: and the heights of the two different pipe diameter flow channels are consistent; wherein R is the rectangular hydraulic radius of the flow channel (mm), and a and b are the width and height of the rectangular flow channel (mm); the asymmetric pipe diameter structure can increase the pressure in the pipe, increase the driving force of the working medium of the oscillating heat pipe, promote the one-way circulation movement of the working medium, and enhance the heat transfer performance.

4. The asymmetrically-dimensioned oscillating heat pipe grinding wheel of claim 1, wherein, The front end cover (1) comprises fin structures (1-1) for forced convection heat exchange, a front end cover inner hole (1-2) located at the center of the front end cover, and a welding step (1-3) for positioning and installing the oscillating heat pipe base plate (2); the rear end cover structure is the same as the front end cover. Correspondingly, step structures are arranged at the positions close to the inner hole and close to the outer edge of the base plate, so as to facilitate the fixation with the above-mentioned welding step (1-3).

5. The asymmetrically-dimensioned oscillating heat pipe grinding wheel of claim 4, wherein, The fin structures (1-1) adopt two kinds of combined fins with equal height and different thickness, and the overall fin length corresponds to the length of the condensation end of the oscillating heat pipe in the base plate.

6. The asymmetrically-dimensioned oscillating heat pipe grinding wheel of claim 1, wherein, One or more annular grooves (4-1) are arranged on the grinding wheel plug for installing sealing rings; the grinding wheel plug is consistent in size with the plug hole (2-3).

7. The method of claim 1, wherein the asymmetrically-dimensioned oscillating heat pipe grinding wheel is formed by the steps of: The steps are as follows: Step one: the grinding wheel plug and the front and rear end covers of the grinding wheel are made to meet the size requirements, the inner holes, fin structures and step structures are machined on the front and rear end covers; Step two: the structure of the oscillating heat pipe base plate (2) is machined first, the base plate is a circular plate with an inner hole, and a machining allowance is left near the outer edge; through-hole structures are uniformly machined on the base plate (2) along the circumferential position as evaporation ends (A), asymmetric pipe diameter flow channels are machined on the front and rear surfaces of the base plate, and the heights are the same and uniformly distributed; the variable pipe diameter positions (D) are arranged at the junctions of the evaporation end, the condensation end and the adiabatic section of the oscillating heat pipe flow channel; Step three, the step structure which matches with the front and back end surface of the grinding wheel is processed on the inner hole (2-4) and the outer circle position of the oscillating heat pipe base plate (2), as the welding position; at the same time, the vacuum injection port (2-2) is processed on the condensing end of any flow channel, connected to the plug hole (2-3); Step four, the upper and lower step structures of the oscillating heat pipe base plate (2) are sealed and assembled with the front and back end surface of the grinding wheel respectively and welded, so that the asymmetric pipe diameter flow channel (2-1) becomes a continuous flow channel; the oscillating heat pipe structure of the front and back of the oscillating heat pipe base plate (2) forms a multi-loop asymmetric oscillating heat pipe channel which is only connected with the outside through the plug hole (2-3); Step five, the outer circle of the grinding wheel is precisely machined to meet the size requirements, and the coaxiality and roundness of the grinding wheel meet the requirements; Step six, the abrasive particles are connected to the outer peripheral surface (2-6) of the asymmetric pipe diameter oscillating heat pipe grinding wheel by electroplating or brazing process to form an abrasive layer; Step seven, the plug hole (2-3) is connected with the vacuum pump and the liquid injection device, after vacuumizing and injecting liquid, the sealing ring is put into the annular groove (4-1) of the grinding wheel plug (4), and the grinding wheel plug (4) is screwed into the plug hole (2-3) to form a complete seal; that is, the asymmetric pipe diameter oscillating heat pipe grinding wheel is completed.

8. The application of the asymmetric pipe diameter oscillating heat pipe grinding wheel of claim 1 for high-speed grinding.

9. Use according to claim 8, characterized in that The oscillating heat pipe flow channel is based on the internal structure of the grinding wheel with different pipe diameters, different pressure gradients are formed inside the flow channel, which provides additional pressure difference for the flow of internal working medium, and promotes the stable one-way circulation movement of the internal working medium of the oscillating heat pipe to achieve.

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