A method for preparing cutting tools and an ultrasonic device for preparing cutting tools.

Abstract

This invention provides a tool manufacturing method and an ultrasonic tool manufacturing apparatus, belonging to the field of tool manufacturing technology. The tool manufacturing method includes establishing a tool model and generating an ultrasonic printing trajectory based on the tool model; preparing tool material and adding the tool material to a printing container; ultrasonically curing the tool material layer by layer according to the ultrasonic printing trajectory to obtain a tool blank; and degreasing and sintering the tool blank. By establishing the required tool model, using ultrasound to cure the tool material layer by layer to obtain the tool blank, and then degreasing and sintering the tool blank to obtain the tool, the tool manufacturing is achieved. This eliminates the need for a separate stamping die for the tool, allowing for direct tool forming, effectively reducing tool manufacturing costs and R&D costs during tool development.

Description

Technical Field

[0001] This invention relates to the field of cutting tool manufacturing technology, and in particular to a cutting tool manufacturing method and a cutting tool ultrasonic manufacturing device. Background Technology

[0002] Manufacturing is the cornerstone of national economic development, with advanced machining technologies playing a crucial role. Cutting tools are often referred to as the "teeth" of industry. To meet the material processing needs of critical sectors, cutting tool materials are evolving towards superhardness, resulting in more complex tool profiles and higher requirements for precision and quality. Due to the difficult-to-machine characteristics of tool materials such as diamond, cemented carbide, ceramics, and cubic boron nitride, traditional machining methods such as diamond wheel grinding are particularly challenging for manufacturing superhard tools and complex-shaped tools, leading to high manufacturing costs, low processing efficiency, and extremely complex processing techniques.

[0003] However, the traditional manufacturing method of cutting tools involves pressing and forming, and the production cost of stamping dies is expensive. Especially in the development stage of new cutting tool products, when conducting research and testing on cutting tool products with different structural designs, it is necessary to make stamping dies separately for each type of cutting tool, which makes the research and development cost of new cutting tool products high.

[0004] Therefore, improvements are needed to overcome the shortcomings of existing technologies. Summary of the Invention

[0005] To overcome the problems existing in related technologies, one of the objectives of this invention is to provide a tool preparation method that solves this problem by using ultrasonic treatment to solidify the tool material layer by layer to obtain a tool blank.

[0006] A method for manufacturing a cutting tool, comprising:

[0007] Establish a tool model and generate an ultrasonic printing trajectory based on the tool model;

[0008] Prepare the cutting tool material and add it to the printing container;

[0009] According to the ultrasonic printing trajectory, the tool material is ultrasonically cured layer by layer to obtain a tool blank;

[0010] The tool blank is degreased and sintered.

[0011] By establishing the required tool model, generating an ultrasonic printing trajectory corresponding to the tool model, and preparing tool materials suitable for ultrasonic curing, the tool material is cured layer by layer according to the ultrasonic printing trajectory to obtain a tool blank. The tool blank is then degreased and sintered to obtain the tool, thus realizing tool fabrication. This method eliminates the need for separate stamping dies for the tool, allowing for direct tool forming and avoiding the high costs associated with die fabrication. This effectively reduces tool fabrication costs and overall R&D costs during tool development.

[0012] In a preferred embodiment of the present invention, the tool material comprises cemented carbide powder and acrylate mixing solution; the preparation of the tool material according to design requirements includes: adjusting the ratio of cemented carbide powder and acrylate mixing solution according to design requirements.

[0013] In a preferred embodiment of the present invention, generating the ultrasonic printing trajectory based on the tool model specifically includes:

[0014] Import the model file of the cutting tool model into the ultrasonic printing trajectory generation software to generate and export the ultrasonic printing trajectory.

[0015] In a preferred embodiment of the present invention, the layer-by-layer ultrasonic curing of the tool material specifically includes:

[0016] Initialize the ultrasonic printing device;

[0017] The moving ultrasonic printing head cures the tool material layer by layer;

[0018] Turn off the ultrasonic generator and lift it away from the ultrasonic printhead.

[0019] In a preferred embodiment of the present invention, the initialization ultrasonic printing device specifically includes:

[0020] Move the ultrasonic print head to the bottom of the printing container to determine the position of the printing base point;

[0021] Turn on the ultrasonic generator and adjust its parameters.

[0022] In a preferred embodiment of the present invention, adjusting the parameters of the ultrasonic generator includes determining the ultrasonic power and determining the ultrasonic vibration frequency.

[0023] The ultrasonic power is greater than or equal to 10 watts and less than or equal to 100 watts, and the ultrasonic vibration frequency is greater than or equal to 20 kHz and less than or equal to 100 kHz.

[0024] In a preferred embodiment of the present invention, the design requirements for the cutting tool include the shape of the cutting tool, the hardness of the cutting tool, the wear resistance of the cutting tool, the working environment of the cutting tool, and the service life of the cutting tool.

[0025] In a preferred embodiment of the present invention, after the tool blank is degreased and sintered, the invention further includes a tool after cleaning and sintering; the tool after cleaning and sintering includes:

[0026] Residual substances on the surface of the cutting tool are removed by chemical cleaning or ultrasonic cleaning.

[0027] In a preferred embodiment of the present invention, after cleaning and sintering the cutting tool, the method further includes: applying a surface coating to the cutting tool.

[0028] The surface coating treatment of the cutting tools includes:

[0029] A coating is applied to the surface of the cutting tool to improve its hardness, wear resistance, and corrosion resistance.

[0030] This application also provides an ultrasonic tool preparation apparatus for performing the above-described tool preparation method, including a sound wave generator, an ultrasonic print head, a moving mechanism, and a printing container;

[0031] The ultrasonic generator is connected to the ultrasonic printhead;

[0032] The ultrasonic printhead is fixed to the moving mechanism;

[0033] The printing container holds the cutting tool material.

[0034] The beneficial effects of this invention are as follows:

[0035] This invention provides a method for preparing a cutting tool, which includes establishing a cutting tool model, generating an ultrasonic printing trajectory based on the cutting tool model, preparing cutting tool material, and adding the cutting tool material to a printing container; ultrasonically curing the cutting tool material layer by layer according to the ultrasonic printing trajectory to obtain a cutting tool blank; and degreasing and sintering the cutting tool blank. By using ultrasonic layer-by-layer curing of the cutting tool material to obtain the cutting tool blank, and then degreasing and sintering the cutting tool blank to obtain the cutting tool, the cutting tool can be prepared directly without the need for a separate stamping die. This effectively reduces the high cost of cutting tool preparation and lowers the R&D costs during cutting tool development.

[0036] This application also provides an ultrasonic tool preparation apparatus for performing the above-described tool preparation method, comprising an ultrasonic generator, an ultrasonic printhead, a moving mechanism, and a printing container; the ultrasonic generator is connected to the ultrasonic printhead; the ultrasonic printhead is fixed to the moving mechanism; and the printing container carries the tool material. The ultrasonic printhead ultrasonically cures the tool material within the printing container, and the moving mechanism moves the ultrasonic printhead to perform layer-by-layer printing, thus achieving tool preparation. This eliminates the need for a separate stamping die for the tool, effectively reducing the cost of tool preparation. Attached Figure Description

[0037] Figure 1 This is a flowchart of the tool preparation method provided in the embodiments of this application.

[0038] Figure 2 This is a flowchart of the layer-by-layer ultrasonic curing of the tool material provided in the embodiments of this application.

[0039] Figure 3 This is a flowchart of the initialization of the ultrasonic printing device provided in the embodiments of this application.

[0040] Figure 4 This is a schematic diagram of an ultrasonic tool preparation device provided in the embodiments of this application. Detailed Implementation

[0041] Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0042] Example 1

[0043] like Figures 1-3 As shown, this embodiment provides a tool manufacturing method, which includes:

[0044] Step 100: Establish a tool model and generate an ultrasonic printing trajectory based on the tool model;

[0045] Step 200: Prepare the cutting tool material and add it to the printing container;

[0046] Step 300: According to the ultrasonic printing trajectory, the tool material is ultrasonically cured layer by layer to obtain a tool blank;

[0047] Step 400: Degrease and sinter the tool blank.

[0048] Specifically, the ultrasonic printing trajectory refers to the path that the ultrasonic print head moves in three-dimensional space during the ultrasonic printing process.

[0049] More specifically, after ultrasonic printing, the resulting tool blank requires further processing, including degreasing and sintering. Degreasing refers to removing residual organic matter from the material through heating or using a degreasing agent. Sintering refers to using high-temperature treatment to make the material particles more tightly bonded, increasing the density and hardness of the tool.

[0050] By establishing the required tool model, generating an ultrasonic printing trajectory corresponding to the tool model, and preparing tool materials suitable for ultrasonic curing, the tool material is cured layer by layer according to the ultrasonic printing trajectory to obtain a tool blank. The tool blank is then degreased and sintered to obtain the tool, thus realizing tool fabrication. This method eliminates the need for separate stamping dies for the tool, allowing for direct tool forming and avoiding the high costs associated with die fabrication. This effectively reduces tool fabrication costs and overall R&D costs during tool development.

[0051] In this embodiment, the tool material includes cemented carbide powder and acrylate solution; the preparation of the tool material according to design requirements includes: adjusting the ratio of cemented carbide powder and acrylate solution according to design requirements.

[0052] Specifically, the ratio of cemented carbide powder to acrylate solution is determined by the performance requirements of the cutting tool.

[0053] More specifically, cemented carbide powder can be formed from a combination of one or more of tungsten, cobalt, tungsten carbide, titanium, and tantalum.

[0054] In this embodiment, generating the ultrasonic printing trajectory based on the tool model specifically includes: importing the model file of the tool model into the ultrasonic printing trajectory generation software, generating and exporting the ultrasonic printing trajectory.

[0055] Specifically, the tool model can be a 3D model file of the tool, such as an STL file.

[0056] More specifically, the ultrasonic printing trajectory is determined by importing the tool model, identifying the tool's structure and geometric properties, and thus determining the motion trajectory of the tool used in ultrasonic printing.

[0057] More specifically, the ultrasonic printing trajectory generation software transforms the design model into the motion instructions required for the actual ultrasonic printhead.

[0058] In this embodiment, the layer-by-layer ultrasonic curing of the tool material specifically includes:

[0059] Step 310: Initialize the ultrasonic printing device;

[0060] Step 320: Move the ultrasonic printing head to solidify the tool material layer by layer;

[0061] Step 330: Turn off the ultrasonic generator and lift it away from the ultrasonic printhead.

[0062] Initializing the ultrasonic printing device ensures the accuracy and reliability of the printing process and guarantees its normal operation. Turning off the ultrasonic generator and lifting the ultrasonic printhead after printing is complete effectively ensures the accuracy of material curing, prevents incorrect curing, and avoids damage to the tool blank or ultrasonic printhead when removing the tool blank.

[0063] In this embodiment, the initialization of the ultrasonic printing device specifically includes: moving the ultrasonic print head to the bottom of the printing container to determine the position of the printing base point; turning on the ultrasonic generator and adjusting the parameters of the ultrasonic generator.

[0064] Specifically, the print base point refers to the starting position of the print.

[0065] More specifically, the ultrasonic generator is turned on, and the ultrasonic generator produces ultrasonic waves. These sound waves act on the printing material through the ultrasonic printhead, causing the printing material to solidify.

[0066] More specifically, the parameters of an ultrasonic generator can be frequency, amplitude, or power.

[0067] In this embodiment, adjusting the parameters of the ultrasonic generator includes fixing the ultrasonic power and fixing the ultrasonic vibration frequency; the ultrasonic power is greater than or equal to 10 watts and less than or equal to 100 watts, and the ultrasonic vibration frequency is greater than or equal to 20 kHz and less than or equal to 100 kHz.

[0068] Specifically, the choice of ultrasonic power depends on the properties of the tool material, the required ultrasonic curing speed, and the printed layer thickness. Ensuring the power is within an appropriate range helps to achieve stable ultrasonic curing results.

[0069] More specifically, the frequency of an ultrasound wave refers to the number of vibrations per second.

[0070] In this embodiment, before preparing the tool material, the method further includes determining the performance requirements of the tool, including hardness and wear resistance.

[0071] Specifically, the hardness of a cutting tool refers to the tool's surface resistance to indentation formation.

[0072] More specifically, wear resistance refers to the tool's ability to resist surface wear and abrasion.

[0073] By determining the performance requirements of the cutting tool, the mixing ratio of the cutting tool material can be determined according to the performance requirements, ensuring that the mixed cutting tool material meets the performance requirements and that the printed cutting tool material meets the design working scenario of the cutting tool.

[0074] Example 2

[0075] like Figures 1-3 As shown, this embodiment provides a tool manufacturing method, which includes:

[0076] Step 100: Establish a tool model and generate an ultrasonic printing trajectory based on the tool model;

[0077] Step 200: Prepare the cutting tool material and add it to the printing container;

[0078] Step 300: According to the ultrasonic printing trajectory, the tool material is ultrasonically cured layer by layer to obtain a tool blank;

[0079] Step 400: Degrease and sinter the tool blank.

[0080] In this embodiment, the tool after cleaning and sintering is also included.

[0081] Sintered cutting tools may have residual substances that affect the surface finish of the tool. Cleaning the tool can effectively remove these residual substances, improve the surface finish, and ensure that the tool meets design requirements and quality standards.

[0082] Specifically, cleaning can be done through solvent cleaning, ultrasonic cleaning, or steam cleaning.

[0083] In this embodiment, the tool is further subjected to a coating surface treatment.

[0084] Specifically, the coating can be a hard coating, an anti-corrosion coating, or a ceramic coating.

[0085] More specifically, coatings can be used to improve the surface hardness, wear resistance, and corrosion resistance of cutting tools.

[0086] More specifically, the surface treatment method can be physical vapor deposition, chemical vapor deposition, or spraying.

[0087] Applying a surface coating to cutting tools can improve their performance, enhance their wear resistance or corrosion resistance, and extend their service life.

[0088] Example 3

[0089] like Figures 1-4 As shown, this embodiment provides a cutting tool ultrasonic preparation device for performing the above-described cutting tool preparation method, including an ultrasonic generator 500, an ultrasonic print head 600, a moving mechanism 700, and a printing container 800.

[0090] The ultrasonic generator 500 is connected to the ultrasonic print head 600;

[0091] The ultrasonic printhead 600 is fixed to the moving mechanism 700;

[0092] The printing container 800 carries the tool material.

[0093] By using an ultrasonic generator to ultrasonically solidify the tool material inside the printed container, there is no need to make a separate stamping mold for the tool, which can effectively reduce the cost of tool preparation and the R&D cost of tool development.

[0094] Specifically, the ultrasonic generator produces high-frequency ultrasonic signals, which can solidify the tool material when applied to it.

[0095] More specifically, the ultrasonic printhead guides and transmits ultrasonic waves to the tool material, making the ultrasonic printing process more accurate and ensuring the precision of tool fabrication.

[0096] More specifically, the moving mechanism controls the ultrasonic print head to move in three-dimensional space, and during the printing process, it controls the ultrasonic print head to perform tool printing according to a predetermined ultrasonic printing trajectory.

[0097] More specifically, a printing container is a container for holding tool materials during the tool manufacturing process. It can be a glass container, a ceramic container, or any other container that can be used to hold liquids or fluids.

[0098] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this application. Any specific values ​​in all examples shown and discussed herein should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0099] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0100] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0101] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0102] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for preparing a cutting tool, characterized in that, include: Obtain the design requirements for the cutting tool, establish a cutting tool model based on the design requirements, and generate an ultrasonic printing trajectory based on the cutting tool model; The tooling material is prepared according to the design requirements and added to the printing container; the tooling material includes cemented carbide powder and acrylate solution; wherein, the cemented carbide powder is formed by a combination of one or more of tungsten, cobalt, tungsten carbide, titanium and tantalum; the preparation of the tooling material according to the design requirements includes: adjusting the ratio of cemented carbide powder and acrylate solution according to the design requirements; According to the ultrasonic printing trajectory, the tool material is ultrasonically cured layer by layer to obtain a tool blank; The layer-by-layer ultrasonic curing of the tool material specifically includes: Initialize the ultrasonic printing device; move the ultrasonic print head to solidify the tool material layer by layer; turn off the ultrasonic generator and lift it away from the ultrasonic print head; Specifically, the initialization of the ultrasonic printing device includes: moving the ultrasonic print head to the bottom of the printing container to determine the position of the printing base point; turning on the ultrasonic generator and adjusting the parameters of the ultrasonic generator; The adjustment of the ultrasonic generator parameters includes fixing the ultrasonic power and fixing the ultrasonic vibration frequency; the ultrasonic power is greater than or equal to 10 watts and less than or equal to 100 watts, and the ultrasonic vibration frequency is greater than or equal to 20 kHz and less than or equal to 100 kHz. The tool blank is subjected to degreasing and sintering treatment. Degreasing refers to removing residual organic matter from the material by heating or using a degreasing agent. Sintering refers to making the material particles more tightly bonded by high-temperature treatment, thereby increasing the density and hardness of the tool.

2. The tool manufacturing method according to claim 1, characterized in that: The step of generating the ultrasonic printing trajectory based on the tool model specifically includes: Import the model file of the cutting tool model into the ultrasonic printing trajectory generation software to generate and export the ultrasonic printing trajectory.

3. The tool manufacturing method according to claim 1, characterized in that: The design requirements for the cutting tool include its shape, hardness, wear resistance, working environment, and service life.

4. The tool manufacturing method according to claim 1, characterized in that: After the tool blank is degreased and sintered, the tool blank is also cleaned after sintering. The cleaned and sintered cutting tools include: Residual substances on the surface of the cutting tool are removed by chemical cleaning or ultrasonic cleaning.

5. The tool manufacturing method according to claim 4, characterized in that: After cleaning and sintering the cutting tool, the process further includes: applying a surface coating to the cutting tool. The surface coating treatment of the cutting tools includes: A coating is applied to the surface of the cutting tool to improve its hardness, wear resistance, and corrosion resistance.

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