A milling method for ceramic matrix composite material

Abstract

The present application discloses a method for milling a ceramic-based composite material, comprising the following steps: installing a ceramic-based composite material blank on a corresponding processing workbench; clamping a milling cutter on an ultrasonic vibration auxiliary module; determining milling processing parameters according to the size of the blank and the size of a part to be processed; constructing an empirical model of laser ablation depth, obtaining a set of laser ablation parameters matching the milling processing parameters according to the empirical model of laser ablation depth, and inputting the laser ablation parameters into a control end of a laser ablation module; performing auxiliary milling processing on the blank according to the milling processing parameters and the laser ablation parameters. The present application has the advantages of improving cutting processing efficiency and reducing tool wear.

Description

Technical Field

[0001] The present application relates to the technical field of composite material processing, and in particular to a method for milling a ceramic-based composite material. Background Art

[0002] Ceramic matrix composites are a type of composite materials with ceramic as the matrix and various fibers as the reinforcement phase. The ceramic matrix can be high-temperature structural ceramics such as silicon nitride and silicon carbide. These advanced ceramics have excellent properties such as high temperature resistance, high strength and stiffness, relatively light weight, and corrosion resistance. However, their fatal weakness is brittleness. When under stress, cracks will occur, and even fractures will cause material failure. The use of high-strength and high-elasticity fibers and matrix composites is an effective way to improve the toughness and reliability of ceramics. Fibers can effectively prevent the expansion of cracks, thereby obtaining fiber-reinforced ceramic matrix composites with excellent toughness. The matrix preparation process of ceramic matrix composites mainly includes precursor impregnation pyrolysis process (PIP), chemical vapor infiltration process (CVI), reactive melt infiltration process (RMI) and mixing process.

[0003] At present, no matter how the ceramic matrix composite materials are formed, they cannot directly achieve high-precision dimensions that meet assembly requirements. Therefore, secondary processing after forming is essential. Common secondary processing methods include wire cutting, water jet cutting, CNC machining, etc. Since the processing accuracy of water jet cutting is extremely low, it can only form dimensions with large tolerances, and the saw wire of wire cutting is very easy to wear and the processing efficiency is extremely low. Therefore, CNC machining technology has more advantages than the former in terms of accuracy and processing efficiency. Therefore, CNC machining is a better processing method for ceramic matrix composite materials. However, due to the brittleness, thermal stability, high hardness and other characteristics of ceramic matrix composite materials themselves, CNC machining also has problems such as low cutting efficiency and severe tool wear. Summary of the invention

[0004] The main purpose of the present application is to provide a method for milling ceramic-based composite materials, aiming to solve the technical problem of low cutting efficiency when the existing ceramic-based composite materials are processed by numerical control.

[0005] To achieve the above objectives, the present application provides a ceramic matrix composite material milling method, comprising the following steps:

[0006] Installing the ceramic matrix composite material blank on a corresponding processing workbench;

[0007] Clamp the milling cutter on the ultrasonic vibration auxiliary module; wherein the ultrasonic vibration auxiliary module is used to generate ultrasonic vibration on the milling cutter, and the ultrasonic vibration auxiliary module is arranged on the spindle of the CNC machine tool;

[0008] Determine the milling parameters according to the size of the blank and the size of the part to be processed;

[0009] Constructing a laser ablation depth empirical model, obtaining a set of laser ablation parameters matching the milling processing parameters according to the laser ablation depth empirical model, and inputting the laser ablation parameters into the control end of the laser ablation module; wherein the laser ablation module is used to emit a laser beam along the tool path of the milling cutter on the blank to laser ablate the processing area of ​​the blank, and the laser ablation module is arranged on the spindle of the CNC machine tool;

[0010] According to the milling processing parameters and the laser ablation parameters, auxiliary milling processing is performed on the blank.

[0011] Optionally, the expression of the empirical model of laser ablation depth is as follows:

[0012]

[0013] In the formula, h a is the laser ablation depth, x1, x2, x3, x4 are all fitting coefficients, P is the laser power, v a is the spot scanning speed.

[0014] Optionally, the light spot scanning speed v a Obtained by the following formula:

[0015]

[0016] In the formula, v e-a is the equivalent ablation velocity, a w is the radial cutting width, l a is the scan line spacing.

[0017] Optionally, the relationship between the milling processing parameters and the laser ablation parameters is:

[0018] Equivalent ablation velocity v e-a = spindle feed speed v f , ablation width l = radial cutting width a w , laser ablation depth h a = cutting depth a p -0.2mm; where the spindle feed speed v f , radial cutting width a w and cutting depth a p All are milling processing parameters, equivalent ablation speed v e-a , ablation width l and laser ablation depth h a These are laser ablation parameters.

[0019] Optionally, the laser ablation parameters also include pulse width τ and pulse frequency fp .

[0020] Optionally, the method for obtaining the fitting coefficient comprises the following steps:

[0021] Conduct laser ablation experiments and measure the laser ablation depth;

[0022] According to the laser ablation depth, the laser ablation depth empirical model is fitted to obtain a fitting coefficient.

[0023] Optionally, the ultrasonic vibration auxiliary module includes an energy transfer part connected to the spindle of the CNC machine tool, the energy transfer part is electrically connected to an ultrasonic generator, the energy transfer part is connected to an ultrasonic tool handle, and the ultrasonic tool handle is used to clamp the milling cutter.

[0024] Optionally, the maximum cutting force and cutting power allowed by the ultrasonic vibration auxiliary module are greater than the maximum cutting force and cutting power during milling of the ceramic-based composite blank.

[0025] Optionally, the laser ablation module includes a laser, an optical fiber, a laser head, a galvanometer and a field lens connected in sequence, and the field lens faces a processing area of ​​the blank.

[0026] Optionally, the laser head is connected to a connecting rod, and the laser head is connected to one side of the spindle of the CNC machine tool through the connecting rod.

[0027] The beneficial effects that this application can achieve are as follows:

[0028] The present application uses laser ablation to transform high-hardness and high-brittle ceramic-based composite materials into soft ablation products. The milling cutter then performs milling processing according to a CNC program and a fixed trajectory under the assistance of ultrasonic vibration. The milling processing parameters are matched with the laser ablation parameters through a constructed empirical model of laser ablation depth, and the laser ablation parameters are set at the control end of the laser ablation module. Therefore, during the processing, the coupling effect of laser, ultrasonic and mechanical energy fields is realized, and high-quality and efficient processing of ceramic-based composite materials is achieved, which can greatly improve the processing efficiency of ceramic-based composite materials, while reducing tool wear during the processing, increasing tool life, and reducing CNC processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0030] Figure 1A schematic diagram of a process flow of a ceramic matrix composite material milling method in an embodiment of the present application;

[0031] Figure 2 A schematic diagram of the structure of the hardware devices involved in the embodiments of the present application;

[0032] Figure 3 A schematic diagram of the fitting results of the laser ablation depth empirical model in the embodiments of the present application;

[0033] Figure 4 This is a schematic diagram of the tool path during CNC machining of a blank in an embodiment of the present application.

[0034] Reference numerals:

[0035] 1-blank, 2-CNC machine tool spindle, 3-milling cutter, 4-ultrasonic generator, 5-energy transfer part, 6-ultrasonic tool holder, 7-laser, 8-optical fiber, 9-laser head, 10-galvanometer, 11-field lens, 12-laser beam, 13-tool path.

[0036] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0041] Example 1

[0042] Reference Figure 1-Figure 4 This embodiment provides a method for milling a ceramic matrix composite material, comprising the following steps:

[0043] Step S100: installing a ceramic matrix composite material blank 1 on a corresponding processing workbench;

[0044] Step S200: clamping the milling cutter 3 on the ultrasonic vibration auxiliary module; wherein the ultrasonic vibration auxiliary module is used to generate ultrasonic vibration on the milling cutter 3, and the ultrasonic vibration auxiliary module is arranged on the spindle 2 of the CNC machine tool;

[0045] Step S300: Determine milling parameters according to the size of the blank 1 and the size of the part to be processed (machining allowance can be determined);

[0046] Step S400: constructing a laser ablation depth empirical model, obtaining a set of laser ablation parameters matching the milling processing parameters according to the laser ablation depth empirical model, and inputting the laser ablation parameters into the control end of the laser ablation module; wherein the laser ablation module is used to emit a laser beam 12 along the tool path 13 of the milling cutter 3 to the blank 1, so as to laser ablate the processing area of ​​the blank 1, and the laser ablation module is arranged on the spindle 2 of the CNC machine tool;

[0047] Step S500: performing auxiliary milling processing on the blank 1 according to the milling processing parameters and the laser ablation parameters.

[0048] In the existing technology, there are the following difficulties in CNC machining of ceramic matrix composite materials: 1) Low cutting efficiency: The material removal rate of the more advanced milling processing at home and abroad is only 75mm 3 / min, it takes about 2.2h to process a 100mm×100mm surface with a thickness of 1mm; 2) The tool wears seriously during the processing: The Mohs hardness of ceramic-based composite materials is about 9.0, and the wear resistance of ordinary carbide tools cannot meet the processing requirements. When the cutting length of ordinary carbide tools is about 100mm, the tool will reach the state of wear and scrap; At the same time, the thermal conductivity of ceramic-based composite materials is extremely poor, and it is very easy to burn the tool during the processing; 3) Ceramic-based composite materials are brittle materials. When they are under stress, they will produce cracks or even break, causing the material to fail. Therefore, the cutting force cannot be too large, resulting in the inability to directly use large feed and large cutting depth parameters for processing. In terms of CNC processing of ceramic-based composite materials, domestic and foreign scholars have proposed a series of related theories such as cutting removal mechanism and tool optimization, which have a certain guiding role in the processing of ceramic-based composite tools. However, through research on CNC processing in this field at home and abroad, the maximum material removal rate of its engineering application is only 75mm 3 / min, which is far from meeting the processing capacity demand of ceramic-based composites. The secondary processing efficiency is still one of the objective factors hindering the large-scale use of ceramic-based composites.

[0049] Therefore, in this embodiment, the high-hardness and high-brittle ceramic-based composite material is transformed into a soft ablation product by laser ablation of the blank 1, and the milling cutter 3 performs milling processing according to the CNC program and a fixed trajectory under the condition of ultrasonic vibration assistance, and the milling processing parameters are matched with the laser ablation parameters through the constructed laser ablation depth empirical model, and the laser ablation parameters can be set at the control end of the laser ablation module to perform milling processing, and the ultrasonic vibration auxiliary module and the laser ablation module are integrated on the CNC machine tool spindle 2, so that the laser ablation module and the ultrasonic vibration auxiliary module can be coordinated with the CNC machine tool spindle 2, thereby achieving in the processing process. The coupling effect of laser, ultrasonic and mechanical energy field is mainly based on CNC machining. By coupling laser ablation and ultrasonic assistance, high-quality and efficient processing of ceramic-based composite materials can be achieved, which can greatly improve the processing efficiency of ceramic-based composite materials by more than ten times; at the same time, it reduces tool wear during the processing process, increases tool life, and reduces CNC processing costs; ultrasonic assisted processing after ablation can reduce the cutting force during the cutting process, improve the processing quality of ceramic-based composite materials, and can increase the surface processing roughness of ceramic-based composite materials from Sa6.4 to Sa3.2. At the same time, the processed edges are free of burrs, broken edges and other defects, which also improves the quality of processed products.

[0050] As an optional embodiment, the milling cutter 3 adopts a polycrystalline diamond milling cutter, which has the advantages of extremely high hardness and wear resistance, low friction coefficient, high elastic modulus, high thermal conductivity, low thermal expansion coefficient, and low affinity with non-ferrous metals. It can be used for precision processing of non-metallic hard and brittle materials such as graphite, highly wear-resistant materials, composite materials, high-silicon aluminum alloys and other tough non-ferrous metal materials.

[0051] In order to effectively realize the coupling effect of laser, ultrasound and mechanical energy field, how to construct an empirical model of laser ablation depth with accurate guidance is the core element. Therefore, as an optional implementation, the expression of the empirical model of laser ablation depth is as follows:

[0052]

[0053] In the formula, h a is the laser ablation depth, x1, x2, x3, x4 are all fitting coefficients, P is the laser power, v a is the spot scanning speed.

[0054] In this embodiment, the independent variables in the above formula are laser power P, spot scanning speed v a , the dependent variable is the laser ablation depth h a When fitting the model, the fitting method can be nonlinear interpolation fitting to obtain the laser power P, and then the laser power P is input into the control end of the laser ablation module. According to the expression of the above-mentioned laser ablation depth empirical model, it has an accurate guiding significance for realizing the coupling effect of laser-ultrasound-mechanical energy field. It should be noted that the above-mentioned laser ablation depth h a , laser power P and spot scanning speed v a These are laser ablation parameters.

[0055] As an optional implementation, the light spot scanning speed v a Obtained by the following formula:

[0056]

[0057] In the formula, v e-a is the equivalent ablation velocity, a w is the radial cutting width, l a is the scanning line spacing (all known quantities), where the scanning line spacing l a It is optimized based on the laser energy absorption capacity of the ablated material.

[0058] In this embodiment, the spot scanning speed v can be accurately calculated according to the above formula: a, and then substitute it into the expression of the empirical model of laser ablation depth to calculate the laser power P. It should be noted that the equivalent ablation speed v e-a and scanning line spacing l a All are laser ablation parameters, radial cutting width a w are milling processing parameters.

[0059] As an optional implementation, the relationship between the milling processing parameters and the laser ablation parameters is:

[0060] Equivalent ablation velocity v e-a = spindle feed speed v f , ablation width l = radial cutting width a w , laser ablation depth h a = cutting depth a p -0.2mm; among which, the spindle feed speed v f , radial cutting width a w and cutting depth a p All are milling processing parameters, equivalent ablation speed v e-a , ablation width l and laser ablation depth h a These are laser ablation parameters.

[0061] In this embodiment, according to the equivalent relationship between the milling processing parameters and the laser ablation parameters, the spindle feed speed v f , radial cutting width a w and cutting depth a p , obtain the equivalent ablation velocity v e-a and laser ablation depth h a , Substituting the known parameters into the above formula (2) and the above formula (2), we can obtain the spot scanning speed v a and the laser power P.

[0062] As an optional embodiment, the laser ablation parameters also include pulse width τ and pulse frequency f p , pulse width τ and pulse frequency f p It is optimized based on the laser energy absorption capacity of the ablated material.

[0063] As an optional implementation, the method for obtaining the fitting coefficient includes the following steps:

[0064] Conduct laser ablation experiments and measure the laser ablation depth;

[0065] According to the laser ablation depth, the laser ablation depth empirical model is fitted to obtain a fitting coefficient.

[0066] In this embodiment, the test method can be an orthogonal test, and multiple sets of independent variables laser power P and spot scanning speed v are preset. a , and measure the corresponding laser ablation depth h a , a full factorial test of laser ablation parameters was carried out to calculate the fitting coefficients x1, x2, x3, and x4.

[0067] As an optional embodiment, the ultrasonic vibration auxiliary module includes an energy transfer part 5 connected to the CNC machine tool spindle 2, the energy transfer part 5 is electrically connected to the ultrasonic generator 4 (through a wire), and the energy transfer part 5 is connected to an ultrasonic tool handle 6, and the ultrasonic tool handle 6 is used to clamp the milling cutter 3.

[0068] In this embodiment, the energy transfer part 5 is used to transfer the ultrasonic energy emitted by the ultrasonic generator 4 to the ultrasonic tool handle 6, so that the ultrasonic tool handle 6 and the milling cutter 3 synchronously ultrasonically vibrate to achieve ultrasonic machining.

[0069] As an optional embodiment, the maximum cutting force and cutting power allowed by the ultrasonic vibration auxiliary module are greater than the maximum cutting force and cutting power when milling the ceramic-based composite material blank 1, thereby meeting the processing requirements of the maximum cutting force and cutting power when milling the blank 1.

[0070] As an optional implementation, the laser ablation module includes a laser 7, an optical fiber 8, a laser head 9, a galvanometer 10 and a field lens 11 which are connected in sequence, and the field lens 11 faces the processing area of ​​the blank 1.

[0071] In this embodiment, the laser beam 12 emitted by the laser 7 is emitted under the action of the optical fiber 8 and the laser head 9, and the field mirror 11 is combined with the galvanometer 10 that quickly and accurately changes the direction of the laser beam 12, so that high-speed and precise processing and treatment of the material can be achieved. The functions of the laser field mirror 11 are: 1) focusing the collimated laser beam 12 on a smaller area, improving the energy density of the laser beam 12, and improving the ability and efficiency of laser processing; 2) converting the change of the laser beam 12 by the galvanometer 10 into a change in the focus position of the processing material, so as to achieve high-speed and precise laser processing and treatment.

[0072] As an optional implementation, the laser head 9 is connected to a connecting rod, and the laser head 9 is connected to one side of the CNC machine tool spindle 2 through the connecting rod.

[0073] In this embodiment, the laser head 9 is connected to one side of the CNC machine tool spindle 2 through a connecting rod, so that the laser ablation module is always kept in front of the mechanical processing module (i.e., the milling cutter 3). An additional machine tool swing angle instruction should be used at the corner to control the machine tool swing angle rotation to ensure that the laser ablation module is always in front of the mechanical processing module, and the laser ablation direction is consistent with the tool path direction to ensure that the material is ablated first and then CNC cutting is performed during processing.

[0074] Example 2

[0075] Reference Figure 1-Figure 4 In this embodiment, a ceramic matrix composite material test piece of 100mm×100mm×4mm is used as an example. The parameters of the polycrystalline diamond milling cutter used are: diameter 20mm, eight blades, straight groove, front angle 3°, back angle 10°, fillet radius 1mm, polycrystalline diamond sheet welded on the substrate, and the substrate is cemented carbide. The CNC milling processing parameters are speed S=9000r / min, feed speed v f =300mm / min, radial cutting width a w =3mm, cutting depth a p =1mm. The conventional CNC machining method directly burns the tool red, which cannot achieve direct machining. Therefore, a multi-energy field assisted machining process is adopted, including the following steps:

[0076] 1) Orthogonal experiment using laser ablation:

[0077] Given pulse width τ = 60ns, pulse frequency f p =500kHz, scanning line spacing l a =20μm, set the independent variable laser power P to 100W, 200W, 300W, 400W, 500W, and the spot scanning speed v a The full factor test of laser ablation parameters was carried out at 300mm / s, 600mm / s, 900mm / s, 1200mm / s and 1500mm / s respectively;

[0078] 2) Obtain the empirical formula of power and laser ablation parameters:

[0079] The ablation depth of the sample in the ablation test was measured, and the empirical model of laser ablation depth obtained by fitting was:

[0080]

[0081] 3) Determine milling parameters and laser power:

[0082] The milling parameters in the CNC program are speed S = 9000r / min, feed speed v f =300mm / min, radial cutting width a w=3mm, cutting depth a p =1mm, calculate and determine the spot scanning speed v a =750mm / s. The laser power is calculated to be 409W according to the empirical model of laser ablation depth, and this power is input into the control end of the laser ablation module to ensure that the ablation power is constant during the processing;

[0083] 4) Determine ultrasonic vibration assisted processing parameters:

[0084] Set the ultrasonic vibration frequency to 20kHz and the ultrasonic amplitude to 5μm, and set these parameters on the control end of the ultrasonic vibration auxiliary module to keep the tool vibrating continuously and stably during the machining process;

[0085] 5) Multi-energy field assisted milling:

[0086] Start the laser ablation module and ultrasonic vibration auxiliary module, and start the milling process according to the set CNC program. Figure 4 Milling is performed along the tool trajectory shown. During the processing, the laser ablates the material of the layer to be processed, so that the high-hardness and high-brittle ceramic-based composite material becomes a soft ablation product. The milling cutter then performs milling according to the CNC program and a fixed trajectory under the assistance of ultrasonic vibration. During the processing, the coupling effect of laser, ultrasonic and mechanical energy fields realizes high-quality and efficient processing of ceramic-based composite materials.

[0087] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for milling a ceramic matrix composite material, characterized in that: The following steps are involved: Installing the ceramic matrix composite material blank on a corresponding processing workbench; Clamp the milling cutter on the ultrasonic vibration auxiliary module; wherein the ultrasonic vibration auxiliary module is used to generate ultrasonic vibration on the milling cutter, and the ultrasonic vibration auxiliary module is arranged on the spindle of the CNC machine tool; Determine the milling parameters according to the size of the blank and the size of the part to be processed; A laser ablation depth empirical model is constructed, and a set of laser ablation parameters matching the milling processing parameters are obtained according to the laser ablation depth empirical model, and the laser ablation parameters are input into the control end of the laser ablation module; wherein the laser ablation module is used to emit a laser beam along the tool path of the milling cutter on the blank to laser ablate the processing area of ​​the blank, and the laser ablation module is arranged on the spindle of the CNC machine tool; the expression of the laser ablation depth empirical model is as follows: In the formula, h a is the laser ablation depth, in mm; x 1. x 2. x 3. x 4 are all fitting coefficients; P is the laser power, in W; v a is the spot scanning speed, in mm / s; the spot scanning speed v a Obtained by the following formula: In the formula, v e-a is the equivalent ablation rate, in mm / min; a w is the radial cutting width, in mm; l a is the scanning line spacing, in μm; According to the milling processing parameters and the laser ablation parameters, auxiliary milling processing is performed on the blank; wherein the relationship between the milling processing parameters and the laser ablation parameters is: Equivalent ablation rate v e-a =Spindle feed speed v f , ablation width l = Radial cutting width a w , laser ablation depth h a = Cutting depth a p -0.2mm; among which, the spindle feed speed v f , Radial cutting width a w and cutting depth a p All are milling processing parameters, equivalent ablation speed v e-a , ablation width l and laser ablation depth h a All are laser ablation parameters; The method for obtaining the fitting coefficient comprises the following steps: carrying out a laser ablation test to measure and obtain the laser ablation depth; and fitting the laser ablation depth empirical model according to the laser ablation depth to obtain the fitting coefficient.

2. A method for milling a ceramic matrix composite material according to claim 1, characterized in that: The laser ablation parameters also include pulse width τ and pulse frequency f p ; Wherein, the pulse width τ The unit is ns, the pulse frequency f p The unit is kHz.

3. A method for milling a ceramic matrix composite material according to claim 1 or 2, characterized in that: The ultrasonic vibration auxiliary module includes an energy transmission part connected to the spindle of the CNC machine tool, the energy transmission part is electrically connected to an ultrasonic generator, the energy transmission part is connected to an ultrasonic tool handle, and the ultrasonic tool handle is used to clamp the milling cutter.

4. A method for milling a ceramic matrix composite material as claimed in claim 3, characterized in that: The maximum cutting force and cutting power allowed by the ultrasonic vibration auxiliary module are both greater than the maximum cutting force and cutting power when the blank of the ceramic-based composite material is milled.

5. A method for milling a ceramic matrix composite material as claimed in claim 3, characterized in that: The laser ablation module comprises a laser, an optical fiber, a laser head, a galvanometer and a field lens which are connected in sequence, and the field lens faces the blank processing area.

6. A ceramic-based composite material milling processing method as described in claim 5, wherein the laser head is connected to a connecting rod, and the laser head is connected to one side of the CNC machine tool spindle through the connecting rod.

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