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

Abstract

The invention relates to an oscillating heat pipe grinding wheel with asymmetric pipe diameters and a manufacturing method and application of the oscillating heat pipe grinding wheel. The oscillating heat pipe grinding wheel is an integrated structure mainly formed by welding a grinding wheel front end cover, an oscillating heat pipe base body and a grinding wheel rear end cover through laser. Oscillating heat pipe flow channels are arranged on the front face and the rear face of the oscillating heat pipe base body in a staggered mode. The oscillating heat pipe flow channel is formed by connecting a plurality of single-loop asymmetric pipe diameter structures end to end. According to the structure, different pipe diameter structures can be utilized, different pressure gradients are formed in a flow channel, extra pressure difference is provided for flowing of an internal working medium, and the working medium in the oscillating heat pipe is promoted to form stable one-way circulating motion. According to the oscillating heat pipe grinding wheel with the asymmetric pipe diameter, efficient heat transfer performance and working stability can still be maintained under the high-speed grinding condition.

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, provide an additional pressure difference, and promote the working medium inside the oscillating heat pipe to form a stable unidirectional circulation motion, so that the oscillating heat pipe can still maintain efficient 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 efficient thermal conductivity. In the field of grinding, especially under high-speed grinding conditions, the air barrier formed by the high-speed rotation of the grinding wheel will prevent the coolant from entering the grinding arc area, making it difficult to effectively remove the grinding heat, resulting in workpiece burns, and seriously affecting the processing accuracy and tool life. To solve this problem, the oscillating heat pipe grinding wheel is used as a new cooling method. The flow channel of the oscillating heat pipe is machined inside the grinding wheel matrix, and the heat conduction capacity of the oscillating heat pipe is utilized to remove part of the grinding heat through the grinding wheel, thereby reducing the grinding temperature and avoiding workpiece burns. .

[0003] The internal flow channels of the oscillating heat pipe grinding wheels currently used all use the same pipe diameter, that is, a symmetrical pipe diameter structure. Studies have shown that under rotating conditions, the capillary force of the oscillating heat pipe with a symmetrical pipe diameter structure weakens, and a gas-liquid plug separation phenomenon occurs. The heat transfer performance gradually weakens with the increase of the rotation speed. To improve this phenomenon, an 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 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 rotating conditions, ensuring that even under harsh working conditions such as high-speed grinding, efficient heat can be exported, thereby avoiding thermal damage to the workpiece and improving processing quality and efficiency. Therefore, the oscillating heat pipe with an asymmetric pipe diameter structure has shown broad application prospects and huge value potential in the fields of high-end manufacturing and precision machining.

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

[0005] Purpose of the invention: In order to solve the deficiencies in the current prior art, the purpose 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 diameter design to increase the internal pressure, increase the driving force of the oscillating heat pipe working fluid, promote the internal circulation of the working fluid under high-speed conditions, and improve the heat transfer efficiency. Ensure the stable and efficient heat conduction capacity of the grinding wheel structure under high-speed grinding.

[0006] Technical solution: In order to achieve the above-mentioned invention object, the present invention adopts the following technical solution: An asymmetric diameter oscillating heat pipe grinding wheel for high-speed grinding is mainly composed of a grinding wheel front cover, an oscillating heat pipe base, a grinding wheel rear cover and a plug. The front and rear end covers of the grinding wheel both contain 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 base to connect the flow channel groove on the base to form an integral oscillating heat pipe asymmetric diameter flow channel.

[0007] The oscillating heat pipe matrix inside the asymmetric diameter oscillating heat pipe grinding wheel mainly includes an asymmetric diameter flow channel, a base inner hole, a grinding wheel working surface and a base step structure. A vacuum injection port and a plug hole are also processed for injecting working fluid and sealing. The asymmetric diameter oscillating heat pipe flow channel is mainly formed by connecting multiple oscillating heat pipe single loops staggered in front and back of the base. Each single-loop oscillating heat pipe has a non-uniform diameter, the evaporation end and the insulation section on one side have a diameter of one size, and the condensation end and the insulation section on the other side have a different diameter. There are two variable diameter positions on the single-loop oscillating heat pipe. In order to ensure that the depth of the oscillating heat pipe flow channel is consistent, 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 diameter structure can increase the pressure in 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. A step for welding is also processed at the substrate installation position. After vacuuming and liquid injection, a plug and a sealing ring are used for sealing, and an annular groove is left on the plug.

[0008] The asymmetric diameter oscillating heat pipe grinding wheel as a whole corresponds to the internal oscillating heat pipe substrate. 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 diameter oscillating heat pipe is evenly 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 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 diameter oscillating heat pipe through the grinding wheel working layer. The internal working medium forms a gas-liquid plug, and heat is transferred by phase change and gas-liquid plug oscillation motion.

[0010] The present invention also provides a method for manufacturing an asymmetric diameter oscillating heat pipe grinding wheel for high-speed grinding, the method comprising: Step 1: Make the plug and the front and rear end covers of the grinding wheel that meet the size requirements; Step 2: Make a circular plate with a certain machining allowance 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:

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

[0012] Ensure that the heights of the two different diameter channels are the same. Staggered processing of more than one asymmetric diameter channel of the oscillating heat pipe on the front and back of the circular plate ensures that the channel is evenly distributed. The variable diameter position is set at the location where the evaporation end, condensation end and insulation section of the oscillating heat pipe channel are connected. Process a through hole at a certain distance from the outer circle of the circular plate as the evaporation end of the oscillating heat pipe.

[0013] Step 3: On the inner hole and outer circle of the oscillating heat pipe substrate, a step structure matching the front and rear end surfaces of the grinding wheel is machined as a welding position.

[0014] Step 4: Seal and assemble the front and rear end surfaces of the two grinding wheels with the step structures on the upper and lower sides of the oscillating heat pipe substrate and weld them to transform the asymmetric pipe diameter flow channel into a connecting flow channel; the oscillating heat pipe structure on the front and rear sides of the oscillating heat pipe substrate forms a multi-loop asymmetric oscillating heat pipe channel that is connected to the outside world only through the plug through-hole.

[0015] 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 of the asymmetric diameter oscillating heat pipe grinding wheel by electroplating or brazing process to form an abrasive layer.

[0016] Step seven, connect the plug hole of the plug with the vacuum pump and the liquid injection device, after vacuuming and liquid injection, put 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 asymmetric diameter oscillating heat pipe grinding wheel is completed.

[0017] Beneficial effects: The present invention has a simple structure and is easy to process. The asymmetric diameter oscillating heat pipe grinding wheel can be used under high-speed grinding conditions, and the pressure of the asymmetric diameter is used to enhance the internal working medium circulation movement and improve the heat transfer performance. The oscillating heat pipe can maintain efficient and stable heat transfer capacity under high-speed grinding conditions, and achieve grinding heat damage control and efficient cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the asymmetric diameter oscillating heat pipe grinding wheel of the present invention; Figure 2 It is a structural explosion diagram of the asymmetric diameter oscillating heat pipe grinding wheel of the present invention; Figure 3 It is a structural schematic diagram of the front end cover 1 of the grinding wheel; Figure 4 It is a schematic diagram of the structure of the oscillating heat pipe matrix 2 inside the grinding wheel; Figure 5 It is a schematic diagram of the structure of the asymmetric pipe diameter flow channel 2-1 of the oscillating heat pipe; Figure 6 It is a schematic diagram of the structure of the rear end cover 3 of the grinding wheel; Figure 7 It is a structural schematic diagram of the grinding wheel plug 4; Figure 8 This is the simulation result diagram of the asymmetric diameter oscillating heat pipe; Fig. 9 This is the simulation result diagram of the symmetrical diameter oscillating heat pipe.

[0019] Description of the main reference numerals in the figures: 1- grinding wheel front end cover, 1-1- fin, 1-2- front end cover inner hole, 1-3 front end cover welding step; 2-oscillating heat pipe base, 2-1-asymmetric pipe diameter flow channel, 2-2-vacuum injection port, 2-3-plug hole, 2-4-base inner hole, 2-5-base step, 2-6-working surface; 3-grinding wheel rear end cover, 3-1-fin, 3-2-rear end cover inner hole, 3-3-rear end cover welding step, 4-grinding wheel plug, 4-1-annular groove, A-oscillating heat pipe evaporation end, B-oscillating heat pipe condensation end, C-insulation section, D-variable pipe diameter position. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solutions in the patent application of the present invention, the technical solutions in the present application are clearly and completely described below in conjunction with the drawings in the present application. Obviously, the described implementation methods are only part of the implementation methods of the present application, not all implementation methods. Based on the implementation methods in the present application, all other implementation methods obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0021] The technical solution of the present invention will be specifically described below in conjunction with implementation cases and drawings. Example

[0022] Figure 1 This is a schematic diagram of the overall structure of the asymmetric diameter oscillating heat pipe grinding wheel for high-speed grinding according to the present invention. Figure 2 This is an exploded view of the structure of the asymmetric diameter oscillating heat pipe grinding wheel of the present invention. Figure 1 , 2As shown, the present invention provides an asymmetric diameter oscillating heat pipe grinding wheel for high-speed grinding, comprising 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 faces of the oscillating heat pipe substrate, and all the flow channels on the substrate 2 are sealed to form an oscillating heat pipe flow channel 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 vacuumed and injected with liquid through the plug hole, and the grinding wheel plug 4 is installed in the oscillating plug hole 2-3 to construct an asymmetric 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. In this embodiment, the overall diameter of the asymmetric diameter oscillating heat pipe grinding wheel is 400 mm, and the grinding wheel width is 25 mm.

[0023] Figure 3 The front end cover 1 of the grinding wheel is a schematic diagram of the structure. The front end cover 1 includes a fin structure 1-1 for forced convection heat exchange, an inner hole 1-2 of the front end cover, and a welding step 1-3 for positioning and installing with the oscillating heat pipe substrate 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 height of the welding step is 2 mm. In this embodiment, the height of the fin structure 1-1 is 1 mm, and two types of combined fins are used, with thicknesses of 1 mm and 4 mm respectively. The overall fin length corresponds to the length of the oscillating heat pipe condensation end in the oscillating heat pipe substrate 2, and the length is 30 mm.

[0024] Figure 4 This is a schematic diagram of the structure of the oscillating heat pipe substrate 2 inside the grinding wheel. Figure 5 It is a schematic diagram of the structure 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 as a whole, and 18 single-loop flow channels are processed on both sides of the oscillating heat pipe substrate 2. The length of each single-loop oscillating heat pipe flow channel is 80 mm, and they are all asymmetric tube diameter structures, including an evaporation end A, a condensation end B and an insulation section C. The two variable tube diameter positions D are respectively located at the intersection of the evaporation end A, the condensation end B and the insulation end C. The size of the asymmetric tube diameter flow channel 2-1 is calculated according to the rectangular hydraulic radius formula to ensure that the heights of the two different tube diameter flow channels are consistent. The dimensions in this embodiment are 2×2 mm 2 and 4×2 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 substrate 2, with a length consistent with the thickness of the grinding wheel and a diameter of 2 mm. The evaporation end A is 2 mm away from the grinding wheel working surface 2-6. A vacuum injection port 2-2 is provided at a single-loop condensation end B, 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. In order to facilitate the installation of the end cover, a step structure 2-5 is provided near the inner hole.

[0025] Figure 6The rear end cover 3 of the grinding wheel is a schematic diagram of the structure. 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, the flow channels on the substrate 2 are completely sealed to form an oscillating heat pipe flow channel connected end to end.

[0026] Figure 7 The diagram is a schematic diagram of the structure of the grinding wheel plug 4. The plug 4 has a diameter of 10 mm and has an annular groove 4-1 for installing a sealing ring. The grinding wheel plug 4 is processed in coordination with the plug hole 2-3.

[0027] The present invention also provides a method for manufacturing the above-mentioned asymmetric diameter oscillating heat pipe grinding wheel, which includes the following steps.

[0028] Step 1: Make a grinding wheel plug 4 and front and rear end covers of the grinding wheel that meet the size requirements, and process inner holes, fin structures and step structures on the front and rear end covers; Step 2: Process the oscillating heat pipe substrate 2. The substrate is a circular plate with an inner hole. After leaving a processing allowance near the outer edge, a 2 mm diameter through hole is processed along the circumference as the evaporation end A. The spacing between each through hole is 20°. According to the rectangular hydraulic radius formula, the dimensions of the asymmetric pipe diameter are 4×2 mm. 2 and 2×2 mm 2 , ensuring that the heights of the two different diameter channels are the same and evenly distributed. In this embodiment, a total of 36 oscillating heat pipe asymmetric diameter channels 2-1 are processed alternately on the front and back of the substrate. The variable diameter position D is set at the position where the evaporation end A, the condensation end B and the insulation section C of the oscillating heat pipe channel are connected.

[0029] Step 3: Process a step structure that matches the front and rear end covers of the grinding wheel on the oscillating heat pipe substrate 2 near the inner hole 2-4 and the outer edge as a welding position. At the same time, process a 1 mm vacuum injection port 2-2 on the condensation end B of a certain flow channel and connect it to the plug hole 2-3.

[0030] Step 4: Seal and assemble the front and rear end covers of the two grinding wheels with the step structure on the oscillating heat pipe substrate 2 and weld them respectively, so that the asymmetric pipe diameter flow channel 2-1 becomes a connecting 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.

[0031] 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: Abrasive grains are connected to the outer peripheral surface 2-6 of the asymmetric diameter oscillating heat pipe grinding wheel by electroplating or brazing to form an abrasive layer.

[0032] Step seven, connect the plug hole 2-3 with the vacuum pump and the injection device, after vacuuming and 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; that is, the asymmetric diameter oscillating heat pipe grinding wheel is completed. Example

[0033] In order to illustrate the feasibility and effectiveness of this patent, the temperature fields of the grinding process of the 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 and enhanced heat exchange capacity of the asymmetric diameter oscillating heat pipe grinding wheel. The simulation adopts the grinding wheel structure described in Example 1 to grind DD90 single crystal high temperature alloy material, and the heat flux density is set to 1×10 8 W / m 2 . Figure 8 This is a simulation diagram of the temperature field of the asymmetric diameter oscillating heat pipe grinding wheel grinding in Example 1. The highest temperature in the grinding arc zone is 432 °C; Fig. 9 The figure shows the grinding temperature field result of the symmetrical diameter oscillating heat pipe grinding wheel. The highest temperature in the grinding arc zone is 518 ℃; it can be seen that the asymmetric diameter oscillating heat pipe grinding wheel can effectively improve the heat transfer efficiency and reduce the surface temperature of the workpiece compared with the symmetrical diameter oscillating heat pipe grinding wheel.

[0034] It can be seen that the present invention utilizes the oscillating heat pipe flow channel with a non-uniform internal diameter design to increase the internal pressure, increase the driving force of the oscillating heat pipe working fluid, promote the internal circulation of the working fluid under high-speed conditions, and improve the heat transfer efficiency. The grinding wheel structure is implemented to ensure stable and efficient heat conduction capacity in high-speed grinding applications.

[0035] 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 present invention to a single disclosed embodiment. As mentioned above, various substitutions or changes of the present application will be apparent to those skilled in the art to which the above-mentioned technology belongs. Therefore, although some alternative embodiments have been specifically discussed, other embodiments will be apparent, or those skilled in the art will be relatively easy to derive. The present application is intended to include all substitutions, modifications, and changes of the present invention discussed herein, as well as other embodiments falling within the spirit and scope of the above-mentioned application.

[0036] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and variations to the present application without departing from the spirit of the present application, and it is intended that the appended claims include these modifications and variations 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 closed oscillating heat pipe flow channel is evacuated and liquid is injected through the plug hole, and the 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 oscillating heat pipe substrate (2) is staggeredly processed on both sides with more than one single-loop flow channel, and each single-loop oscillating heat pipe flow channel is an asymmetric pipe diameter flow channel (2-1), including 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 surface of the substrate, and is kept at a distance from the outer edge of the substrate, with a length equal to the thickness of the grinding wheel; 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 dimensions of the asymmetric pipe diameter flow channel are calculated according to the following rectangular hydraulic radius formula: ; and the heights of the two flow channels with different pipe diameters 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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