Asymmetric diameter oscillating heat pipe grinding wheel and its manufacturing method and application

Abstract

The present invention relates to an asymmetric diameter oscillating heat pipe grinding wheel and a manufacturing method and application thereof. The structure is mainly composed of three parts, namely, a grinding wheel front end cover, an oscillating heat pipe substrate and a grinding wheel rear end cover, which are laser welded into an integrated structure. The front and rear surfaces of the oscillating heat pipe substrate are staggered with oscillating heat pipe flow channels. The oscillating heat pipe flow channels are multiple single-loop asymmetric diameter structures connected end to end. The structure can utilize different diameter structures to form different pressure gradients inside the flow channel, provide additional pressure difference for the flow of internal working fluid, and promote the internal working fluid of the oscillating heat pipe to form a stable unidirectional circulation motion. The asymmetric diameter oscillating heat pipe grinding wheel can achieve efficient heat transfer performance and working stability under high-speed grinding conditions.

Description

Technical Field

[0001] The present invention relates to an asymmetric diameter oscillating heat pipe grinding wheel for high-speed grinding and a manufacturing method thereof. The grinding wheel structure utilizes an asymmetric diameter design to form different pressure gradients inside, providing an additional pressure difference to promote the formation of a stable unidirectional circulation movement of the working fluid inside the oscillating heat pipe, and enabling the oscillating heat pipe to maintain high-efficiency and stable heat transfer capacity under high-speed grinding conditions. Background Art

[0002] As a passive heat transfer element, the oscillating heat pipe is known for its high thermal conductivity. In the field of grinding machining, especially under high-speed grinding conditions, due to the air barrier effect formed by the high-speed rotation of the grinding wheel, it will hinder the coolant from entering the grinding arc area, and the grinding heat is difficult to be effectively dissipated, resulting in workpiece burns and seriously affecting the machining accuracy 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 matrix, utilizes the heat conduction ability of the oscillating heat pipe, and dissipates a part of the grinding heat through the grinding wheel to reduce the grinding temperature and avoid workpiece burns.

[0003] Currently, the internal flow channels of the adopted oscillating heat pipe grinding wheels all adopt the same pipe diameter, that is, a symmetric pipe diameter structure. Research shows that in the case of a symmetric pipe diameter structure oscillating heat pipe under rotation conditions, the capillary force weakens, and the gas-liquid plug separation phenomenon occurs. The heat transfer performance gradually weakens with the increase in rotational speed. To improve this phenomenon, the oscillating heat pipe with an asymmetric pipe diameter structure is proposed. Through the distribution of 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 fluid 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 harsh conditions such as high-speed grinding, efficient heat dissipation can be achieved, thereby avoiding workpiece thermal damage and improving the machining quality and efficiency. Therefore, the oscillating heat pipe with an asymmetric pipe diameter structure shows broad application prospects and great value potential in the fields of high-end manufacturing, precision machining, etc.

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

[0005] Object of the Invention: To solve the deficiencies in the current prior art, the object of the present invention is to provide an asymmetric 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 working fluid of the oscillating heat pipe, promotes the internal circulation of the working fluid under high-speed conditions, and improves the heat transfer efficiency. Ensure the stable and efficient heat conduction ability of the grinding wheel structure under high-speed grinding.

[0006] Technical solution: To achieve the above-mentioned invention object, the present invention adopts the following technical solutions:

[0007] An asymmetric pipe diameter oscillating heat pipe grinding wheel for high-speed grinding mainly consists of a grinding wheel front end cover, an oscillating heat pipe matrix, a grinding wheel rear end cover, and a plug. The front and rear end covers of the grinding wheel both include an inner hole structure, a fin structure, and a step for welding. The front and rear end covers are welded to the oscillating heat pipe matrix, connecting the flow channels on the matrix into an integral oscillating heat pipe asymmetric pipe diameter flow channel.

[0008] The oscillating heat pipe matrix inside the asymmetric pipe diameter oscillating heat pipe grinding wheel mainly includes an asymmetric pipe diameter flow channel, a matrix inner hole, a grinding wheel working surface, and a matrix step structure. A vacuum injection port and a plug hole are also processed for injecting working fluid and sealing. The asymmetric pipe diameter oscillating heat pipe flow channel is mainly formed by connecting the heads and tails of multiple single loops of oscillating heat pipes arranged alternately on the front and back surfaces of the matrix. Each single loop of oscillating heat pipe has a non-uniform pipe diameter. The evaporation end and one-sided adiabatic section have one size of pipe diameter, and the condensation end and the other-sided adiabatic section have a different pipe diameter, which is another size. There are two variable pipe diameter positions on the single loop of oscillating heat pipe. 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 substrate. This asymmetric pipe diameter structure can increase the pressure inside the pipe, increase the driving force of the working fluid of the oscillating heat pipe, promote the unidirectional cyclic movement of the working fluid, and enhance the heat transfer performance. Similarly, a step for welding is processed at the substrate installation position. After vacuum injection, the plug and sealing ring are used for sealing, and the plug has an annular groove.

[0009] The overall asymmetric pipe diameter oscillating heat pipe grinding wheel corresponds to the internal oscillating heat pipe substrate. The outer circumferential surface of the grinding wheel, that is, the working surface of the grinding wheel, corresponds to the evaporation end of the oscillating heat pipe. The evaporation ends of the asymmetric pipe diameter oscillating heat pipes are uniformly arranged in the flow channels on the working surface of the grinding wheel. The corresponding position of the condensation end of the oscillating heat pipe flow channel is at the fin structure of the front and rear end covers.

[0010] When the asymmetric pipe diameter oscillating heat pipe grinding wheel grinds a workpiece, the grinding heat generated in the grinding arc area during the grinding process will be transferred to the evaporation end of the asymmetric pipe diameter oscillating heat pipe through the working layer of the grinding wheel. The internal working fluid forms a gas-liquid plug, and the heat is transferred out through phase change and the oscillating movement of the gas-liquid plug.

[0011] The present invention also provides a manufacturing method for an asymmetric pipe diameter oscillating heat pipe grinding wheel for high-speed grinding, and the method includes:

[0012] Step 1: Manufacture the plug and the front and rear end covers of the grinding wheel that meet the dimensional requirements;

[0013] Step 2: Manufacture a circular plate with a certain machining allowance left on the outer circle as the oscillating heat pipe substrate. Calculate the size of the asymmetric pipe diameter according to the rectangular hydraulic radius formula. The hydraulic radius formula is as follows:

[0014]

[0015] wherein R is the hydraulic radius of the rectangular flow channel (mm), a, b are the width and height of the rectangular flow channel (mm).

[0016] Ensure that the heights of the flow channels with two different pipe diameters are the same. On the front and back surfaces of the circular plate, more than one oscillating heat pipe with asymmetric pipe diameters is machined staggeredly to ensure uniform distribution of the flow channels. The position of the variable pipe diameter is set at the position where the evaporation end, condensation end and adiabatic section of the oscillating heat pipe flow channel are connected. A through hole is machined at a certain position from the outer circle of the circular plate as the evaporation end of the oscillating heat pipe.

[0017] Step 3: On the oscillating heat pipe substrate, step structures that match the front and back end faces of the grinding wheel are machined at the inner hole and outer circle positions as welding positions.

[0018] Step 4: The front and back end faces of the two grinding wheels are respectively hermetically assembled and welded with the step structures on the upper and lower surfaces of the oscillating heat pipe substrate, so that the flow channels with asymmetric pipe diameters become connected flow channels; the oscillating heat pipe structures on the front and back surfaces of the oscillating heat pipe substrate form a multi-loop asymmetric oscillating heat pipe channel that is only connected to the outside through the through holes of the plugs.

[0019] Step 5: Precision turn the outer circle of the grinding wheel to meet the dimensional requirements, and make the coaxiality and circular runout of the grinding wheel meet the requirements;

[0020] Step 6: Connect abrasive grains to the outer peripheral surface of the oscillating heat pipe grinding wheel with asymmetric pipe diameters by electroplating or brazing processes to form an abrasive layer.

[0021] Step 7: Connect the plug hole of the plug to a vacuum pump and a liquid injection device. After vacuumizing and injecting liquid, place the sealing ring into the annular groove of the plug, and screw the plug into the plug hole to form a complete seal; that is, the oscillating heat pipe grinding wheel with asymmetric pipe diameters is manufactured.

[0022] Beneficial effects:

[0023] The structure of the present invention is simple and easy to process. The oscillating heat pipe grinding wheel with asymmetric pipe diameters can be applied under high-speed grinding conditions. The pressure of the asymmetric pipe diameters is used to enhance the circulation movement of the internal working fluid and improve the heat transfer performance. It can achieve that the oscillating heat pipe still maintains high-efficiency and stable heat transfer ability under high-speed grinding conditions, and realize the control of grinding heat damage and efficient cooling. Description of the drawings

[0024] Figure 1 is the overall structural schematic diagram of the oscillating heat pipe grinding wheel with asymmetric pipe diameters according to the present invention;

[0025] Figure 2 is the exploded view of the structure of the oscillating heat pipe grinding wheel with asymmetric pipe diameters according to the present invention;

[0026] Figure 3 It is a schematic structural diagram of the front end cover 1 of the grinding wheel;

[0027] Figure 4 It is a schematic structural diagram of the internal oscillating heat pipe matrix 2 of the grinding wheel;

[0028] Figure 5 It is a schematic structural diagram of the non - symmetric diameter flow channel 2 - 1 of the oscillating heat pipe;

[0029] Figure 6 It is a schematic structural diagram of the rear end cover 3 of the grinding wheel;

[0030] Figure 7 It is a schematic structural diagram of the plug 4 of the grinding wheel;

[0031] Figure 8 It is a simulation result diagram of the non - symmetric diameter oscillating heat pipe;

[0032] Figure 9 It is a simulation result diagram of the symmetric diameter oscillating heat pipe.

[0033] Explanation of the main reference numerals in the figure:

[0034] 1 - Front end cover of the grinding wheel, 1 - 1 - Fins, 1 - 2 - Inner hole of the front end cover, 1 - 3 - Welding step of the front end cover;

[0035] 2 - Oscillating heat pipe matrix, 2 - 1 - Non - symmetric diameter flow channel, 2 - 2 - Vacuum pumping and liquid injection port, 2 - 3 - Plug hole, 2 - 4 - Inner hole of the matrix, 2 - 5 - Matrix step, 2 - 6 - Working surface;

[0036] 3 - Rear end cover of the grinding wheel, 3 - 1 - Fins, 3 - 2 - Inner hole of the rear end cover, 3 - 3 - Welding step of the rear end cover, 4 - Plug of the grinding wheel, 4 - 1 - Annular groove, A - Evaporation end of the oscillating heat pipe, B - Condensation end of the oscillating heat pipe, C - Adiabatic section, D - Variable diameter position. Specific implementation manners

[0037] In order to enable those skilled in the art of this technology to better understand the technical solutions in this invention patent application, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings in this application. Obviously, the described implementation manners are only a part of the implementation manners of this application, rather than all of them. Based on the implementation manners in this application, all other implementation manners obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of this application.

[0038] The technical solutions of the present invention will be specifically described below in conjunction with the implementation cases and the accompanying drawings. Embodiment

[0039] Figure 1This is the overall structural schematic diagram of the asymmetric tube diameter oscillating heat pipe grinding wheel for high-speed grinding according to the present invention. Figure 2 This is the exploded view of the structure of the asymmetric tube diameter oscillating heat pipe grinding wheel according to the present invention. Refer to Figure 1 , 2 As shown in

[0040] Figure 3 , the asymmetric tube diameter oscillating heat pipe grinding wheel for high-speed grinding provided by the present invention includes a grinding wheel front end cover 1, an oscillating heat pipe substrate 2, a grinding wheel rear end cover 3, and a grinding wheel plug 4. The front and rear end covers are welded to the front and rear surfaces of the oscillating heat pipe matrix, sealing all the flow channels on the substrate 2 to form an oscillating heat pipe flow channel that is connected end to end. A plug hole is opened on the oscillating heat pipe substrate 2, and the above-mentioned closed oscillating heat pipe flow channel is evacuated and filled with liquid through the plug hole, and the grinding wheel plug 4 is installed in the plug hole 2-3 of the oscillator to construct an asymmetric tube diameter oscillating heat pipe grinding wheel for high-speed grinding. Abrasive grains are arranged on the outer peripheral surface of the grinding wheel to form an abrasive layer. In this embodiment, the overall diameter of the asymmetric tube diameter oscillating heat pipe grinding wheel is 400 mm, and the width of the grinding wheel is 25 mm.

[0041] Figure 4 This is the structural schematic diagram of the internal oscillating heat pipe substrate 2 of the grinding wheel. Figure 5 This is the structural schematic diagram of the asymmetric tube diameter flow channel 2-1 of the oscillating heat pipe. In this embodiment, the asymmetric tube diameter flow channel 2-1 is composed of 36 single-loop oscillating heat pipes in total. 18 single-loop flow channels are processed on each side of the oscillating heat pipe substrate 2. The length of each single-loop oscillating heat pipe flow channel is 80 mm, and all are of asymmetric tube diameter structure, including an evaporation end A, a condensation end B, and an adiabatic section C. Two variable tube diameter positions D are respectively located at the junctions of the evaporation end A, the condensation end B, and the adiabatic end C. The dimensions of the asymmetric tube diameter flow channel 2-1 are calculated according to the rectangular hydraulic radius formula to ensure that the heights of the two different tube diameter flow channels are the same. The dimensions in this embodiment are 2×2 mm 2 and 4×2 mm 2。The evaporation end A of the asymmetric-diameter flow channel 2-1 is a through-hole structure perpendicular to the surface of the substrate 2, with a length equal to the thickness of the grinding wheel and a diameter of 2 mm. The distance between the evaporation end A and the working surface 2-6 of the grinding wheel is 2 mm. At a certain single-loop condensation end B, there is a vacuum injection port 2-2, which is connected to the plug hole 2-3. At the same time, the inner hole 2-4 of the substrate 2 has a size of 127 mm. To facilitate the installation of the end cover, a step structure 2-5 is provided near the inner hole.

[0042] Figure 6 Fig. is a schematic structural diagram of the rear end cover 3 of the grinding wheel. 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 substrate 2, all the flow channels on the substrate 2 are sealed to form an oscillating heat pipe flow channel that is connected end to end.

[0043] Figure 7 Fig.

[0042] is a schematic structural diagram of the grinding wheel plug 4. The diameter of the plug 4 is 10 mm, and an annular groove 4-1 is provided on it for installing the sealing ring. The grinding wheel plug 4 is machined in cooperation with the plug hole 2-3.

[0044] The present invention also provides a manufacturing method for the above-mentioned asymmetric-diameter oscillating heat pipe grinding wheel. It includes the following steps.

[0045] Step 1: Manufacture the grinding wheel plug 4 and the front and rear end covers of the grinding wheel that meet the dimensional requirements, and machine inner holes, fin structures, and step structures on the front and rear end covers;

[0046] Step 2: Machine the oscillating heat pipe substrate 2, which is a circular plate with an inner hole. After leaving machining allowances at positions near the outer edge, 2-mm-diameter through-holes are machined along the circumference as the evaporation end A, and the distance between each through-hole is 20°. According to the rectangular hydraulic radius formula, the sizes of the asymmetric diameters are calculated to be 4×2 mm 2 and 2×2 mm 2 , ensuring that the heights of the two different-diameter flow channels are the same and evenly distributed. In this embodiment, a total of 36 oscillating heat pipe asymmetric-diameter flow channels 2-1 are machined on the front and back surfaces of the substrate in a staggered manner. The variable-diameter position D is set at the position where the evaporation end A, the condensation end B, and the adiabatic section C of the oscillating heat pipe flow channel are connected.

[0047] Step 3: Machine step structures that match the front and rear end covers of the grinding wheel at positions near the inner hole 2-4 and near the outer edge of the oscillating heat pipe substrate 2 as welding positions. At the same time, on the condensation end B of a certain flow channel, machine a 1-mm vacuum injection port 2-2 and connect it to the plug hole 2-3.

[0048] Step 4: Hermetically assemble and weld the two front and rear end covers of the grinding wheel to the step structures on the oscillating heat pipe substrate 2 respectively, so that the asymmetric-diameter flow channels 2-1 become connected flow channels; the oscillating heat pipe structures on the front and back surfaces of the oscillating heat pipe substrate 2 form a multi-loop asymmetric oscillating heat pipe channel that is only connected to the outside through the plug hole 2-3.

[0049] Step 5: Precision turn the outer circle of the grinding wheel to meet the dimensional requirements, and make the coaxiality and circular runout of the grinding wheel meet the requirements.

[0050] Step 6: Connect abrasive grains to the outer peripheral surface 2-6 of the asymmetric-diameter oscillating heat pipe grinding wheel by electroplating or brazing processes to form an abrasive layer.

[0051] Step 7: Connect the plug hole 2-3 to a vacuum pump and a liquid injection device. After vacuumizing and injecting liquid, place 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; thus, the described asymmetric-diameter oscillating heat pipe grinding wheel is manufactured. Embodiment

[0052] To illustrate the feasibility and effectiveness verification of this patent, the temperature fields of the grinding processes of the described asymmetric-diameter oscillating heat pipe grinding wheel and the symmetric-diameter oscillating heat pipe grinding wheel are compared and analyzed to verify the high-efficiency heat transfer enhancement ability of the asymmetric-diameter oscillating heat pipe grinding wheel. The simulation adopts the grinding wheel structure described in Embodiment Case 1, grinds the DD90 single-crystal superalloy material, and sets the heat flux density to 1×10 8 W / m 2 . Figure 8 Fig. is the simulation diagram of the grinding temperature field of the asymmetric-diameter oscillating heat pipe grinding wheel in Embodiment 1. The highest temperature in the grinding arc area is 432 °C; Figure 9 Fig. is the result diagram of the grinding temperature field of the symmetric-diameter oscillating heat pipe grinding wheel. The highest temperature in the grinding arc area is 518 °C; it can be seen that compared with the symmetric-diameter oscillating heat pipe grinding wheel, the asymmetric-diameter oscillating heat pipe grinding wheel can effectively improve the heat transfer efficiency and reduce the workpiece surface temperature.

[0053] It can be seen that the present invention utilizes the oscillating heat pipe flow channel with an internally non-uniform diameter design to increase the internal pressure, increase the driving force of the oscillating heat pipe working medium, promote the internal circulation of the working medium under high-speed conditions, and improve the heat transfer efficiency. The described grinding wheel structure is realized to ensure stable and high-efficiency heat conduction ability under high-speed grinding applications.

[0054] The above descriptions of the various embodiments of the present application are provided to those skilled in the art for the purpose of description. It is not intended to be exhaustive or to limit the invention to a single disclosed embodiment. As described above, various alternatives or variations of the present application will be obvious to those skilled in the art in the above technology. Therefore, although some alternative embodiments have been specifically discussed, other embodiments will be obvious or relatively easy for those skilled in the art to obtain. The present application is intended to include all alternatives, modifications, and variations of the present invention discussed herein, as well as other embodiments falling within the spirit and scope of the above application.

[0055] Although the present application has been described by way of embodiments, those of ordinary skill in the art will recognize that the present application has many variations and modifications without departing from the spirit of the present application. It is intended that the appended claims cover these variations and modifications without departing from the spirit of the present application.

Claims

1. An asymmetric diameter oscillating heat pipe grinding wheel, characterized in that: include: Grinding wheel front and rear end covers and oscillating heat pipe base plate (2); The oscillating heat pipe substrate (2) is a circular plate with an inner hole, and asymmetric pipe diameter flow channels are processed alternately on the front and back sides of the substrate, and a plug hole is opened near the inner hole of the substrate; the front and back end covers are welded to the front and back sides of the oscillating heat pipe substrate, and the asymmetric pipe diameter flow channel on the substrate is sealed to form an oscillating heat pipe asymmetric pipe diameter flow channel connected end to end; the asymmetric pipe diameter flow channel of the oscillating heat pipe is vacuumed and filled with liquid through the plug hole, and a grinding wheel plug (4) is installed in the oscillating plug hole (2-3) to construct an asymmetric pipe diameter oscillating heat pipe grinding wheel for high-speed grinding, and abrasive grains are arranged on the outer peripheral surface of the grinding wheel to form an abrasive layer.

2. The asymmetric diameter oscillating heat pipe grinding wheel according to claim 1, characterized in that: The asymmetric pipe diameter flow channels processed alternately on both sides of the oscillating heat pipe substrate (2) are single-loop flow channels, comprising an evaporation end (A), a condensation end (B) and an insulation section (C); the evaporation end (A) is a through-hole structure perpendicular to the substrate surface, and is kept at a distance from the outer edge of the substrate, with a length equal to the thickness of the grinding wheel; the two variable pipe diameter positions (D) are respectively located at the intersection of the evaporation end (A) and the insulation end (C), and at the intersection of the condensation end (B) and the insulation end (C); a vacuum injection port (2-2) is reserved at any single-loop condensation end (B), which is connected to the plug hole (2-3).

3. An asymmetric diameter oscillating heat pipe grinding wheel according to claim 1 or 2, characterized in that: 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; ； in R is the hydraulic radius of the flow channel rectangle (mm), a, b is the width and height of the rectangular flow channel (mm); the asymmetric tube diameter structure can increase the pressure inside the tube, increase the driving force of the oscillating heat pipe working fluid, promote the unidirectional circulation of the working fluid, and enhance the heat transfer performance.

4. The asymmetric diameter oscillating heat pipe grinding wheel according to claim 1, characterized in that: The front end cover (1) comprises a fin structure (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 mounting with the oscillating heat pipe base (2); the rear end cover structure is the same as the front end cover; Correspondingly, step structures are provided at positions close to the inner hole and the outer edge of the substrate to facilitate fixation with the above-mentioned welding steps (1-3).

5. The asymmetric diameter oscillating heat pipe grinding wheel according to claim 4, characterized in that: The fin structure (1-1) uses two types of combined fins with equal heights and different thicknesses, and the overall fin length corresponds to the length of the condensing end of the oscillating heat pipe in the substrate.

6. The asymmetric diameter oscillating heat pipe grinding wheel according to claim 1, characterized in that: The grinding wheel plug is provided with one or more annular grooves (4-1) for installing a sealing ring; the grinding wheel plug is consistent in size with the plug hole (2-3).

7. The method for manufacturing an asymmetric diameter oscillating heat pipe grinding wheel according to claim 1, characterized in that: Here are the steps: Step 1: Make a grinding wheel plug and front and rear end covers of the grinding wheel that meet the size requirements, and process the inner holes, fin structures and step structures on the front and rear end covers; Step 2: First, the structure of the oscillating heat pipe substrate (2) is processed. The substrate is a circular plate with an inner hole, and a processing allowance is left near the outer edge; a through-hole structure is evenly processed along the circumference of the substrate (2) as an evaporation end (A), and asymmetric pipe diameter flow channels are processed on the front and back of the substrate, with the same height and evenly distributed; the variable pipe diameter position (D) is set at the position where the evaporation end, condensation end and insulation section of the oscillating heat pipe flow channel are connected; Step 3: On the inner hole (2-4) and the outer circle of the oscillating heat pipe substrate (2), a step structure that matches the front and rear end surfaces of the grinding wheel is machined as a welding position; at the same time, a vacuum injection port (2-2) is machined on the condensation end of any flow channel and connected to the plug hole (2-3); Step 4: The front and rear end surfaces of the two grinding wheels are respectively sealed and assembled with the step structures on the upper and lower sides of the oscillating heat pipe substrate (2), and then welded, so that the asymmetric pipe diameter flow channel (2-1) becomes a connected flow channel; the oscillating heat pipe structure on the front and rear sides of the oscillating heat pipe substrate (2) forms a multi-loop asymmetric oscillating heat pipe channel that is connected to the outside world only through the plug hole (2-3); Step 5: Finish turning the outer circle of the grinding wheel to meet the size requirements, and make the coaxiality and circular runout of the grinding wheel meet the requirements; Step six, connecting abrasive grains on the outer peripheral surface (2-6) of the asymmetric diameter oscillating heat pipe grinding wheel by electroplating or brazing process to form an abrasive layer; Step 7, connect the plug hole (2-3) to the vacuum pump and the liquid injection device, after vacuuming and liquid injection, 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; thus, the asymmetric diameter oscillating heat pipe grinding wheel is manufactured.

8. Application of the asymmetric diameter oscillating heat pipe grinding wheel as claimed in claim 1 for high-speed grinding.

9. The use according to claim 8, characterized in that It is based on the oscillating heat pipe flow channel with different pipe diameter structures inside the grinding wheel, which forms different pressure gradients inside the flow channel, provides additional pressure difference for the internal working fluid flow, and promotes the working fluid inside the oscillating heat pipe to form a stable unidirectional circulation motion.

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