PCD (Poly Crystal Diamond) soldering lug cutter with groove microstructure
By setting grooves and micro-orifices on the PCD welding tool, the chip accumulation problem was solved, enabling efficient machining of non-ferrous metal materials, extending tool life and improving machining quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-10
AI Technical Summary
When machining non-ferrous metals, existing PCD welding tools tend to accumulate chips, affecting machining efficiency and tool life.
PCD welding sheet cutting tools with designed groove microstructures include multiple grooves and micro-flow holes on the cutting head to guide chip flow and cool them, prevent chip accumulation, and reduce cutting force.
It improves the machining efficiency and service life of cutting tools, and obtains high-quality machined surfaces.
Smart Images

Figure CN223981270U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precision machining technology, and more specifically, to a PCD welding tool with a groove microstructure. Background Technology
[0002] Non-ferrous metals (such as aluminum alloys, titanium alloys, and copper) are widely used in electronics, automotive, and aerospace industries due to their advantages. These applications require high-precision machined surfaces. Currently, for planar machining of non-ferrous metals, PCD (Polymer Diode) lug cutters are generally used to improve tool wear resistance. However, because the tool rotates at high speed during machining, chip accumulation easily occurs at the machining interface between the PCD lug and the material, affecting the tool's machining efficiency. Summary of the Invention
[0003] The purpose of this invention is to address the technical problems existing in the prior art by providing a PCD welding sheet tool with a groove microstructure, which can reduce chip accumulation and improve the tool's processing efficiency.
[0004] To solve the problems mentioned above, the technical solution adopted by this utility model is as follows:
[0005] This utility model provides a PCD soldering tool with a grooved microstructure, comprising:
[0006] Handle;
[0007] The cutting head is located at the end of the handle;
[0008] PCD pads are mounted on the cutting head. The ends and sides of the PCD pads protrude from the corresponding surfaces of the cutting head and are provided with cutting edges. The PCD pads are provided with multiple grooves to guide the flow of chips.
[0009] Furthermore, the outer periphery of the cutter head is provided with a mounting groove, forming a mounting portion; the PCD solder pad is disposed on the mounting portion, and the groove is located on the side of the PCD solder pad away from the mounting portion.
[0010] Furthermore, the plurality of grooves are arranged sequentially along the axial direction of the cutter head, and the axes of the plurality of grooves are parallel.
[0011] Furthermore, the axes of all the grooves are perpendicular to the axis of the cutter head.
[0012] Furthermore, the surface of each trench is coated.
[0013] Furthermore, the thickness of the PCD pad is H, and the depth of the trench is h, satisfying 1 / 30≤h / H≤7 / 15.
[0014] Furthermore, the cutting head is also provided with multiple micro-flow holes, which are located in the mounting groove and correspond to the position of the PCD solder pad surface.
[0015] Furthermore, the cutter head is provided with multiple sets of micro-flow holes along the axial direction, each set of micro-flow holes corresponding to the position of the groove, and the diameter of each set of micro-flow holes is greater than the distance between two adjacent grooves.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] The PCD solder sheet cutting tool provided by this utility model can reliably achieve surface machining of various metal materials. By setting multiple grooves on the surface of the PCD solder sheet, the chips after cutting are guided, avoiding chip accumulation at the PCD solder sheet, reducing the cutting force of the PCD solder sheet, improving the machining efficiency of the tool, and further improving the tool's service life, and can also obtain a high-quality machined surface. Attached Figure Description
[0018] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:
[0019] Figure 1 This is a structural diagram of the PCD welding sheet tool with a groove microstructure according to this utility model.
[0020] Figure 2 This is a partial structural diagram of the PCD welding tool with a groove microstructure according to this utility model.
[0021] Among them, 10-tool holder, 20-tool head, 30-PCD welding piece, 31-groove, 40-transition part, 21-mounting groove, 22-mounting part, 23-microflow hole. Detailed Implementation
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.
[0023] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a particular order. In the specification, claims, and accompanying drawings of this utility model, when an element is referred to as "fixed to," "mounted to," "set on," or "connected to" another element, it can be directly or indirectly located on that other element. For example, when an element is referred to as "connected to" another element, it can be directly or indirectly connected to that other element.
[0024] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0025] See Figure 1 As shown, this utility model provides a PCD soldering tool with a groove microstructure, comprising:
[0026] Handle 10;
[0027] The cutting head 20 is located at the end of the handle 10;
[0028] PCD welding piece 30 is disposed on the cutting head 20. The end and side of the PCD welding piece 30 protrude from the corresponding surface of the cutting head 20 and are provided with cutting edges (not shown in the figure) for processing the material surface. The PCD welding piece 30 is provided with multiple grooves 31 to guide the flow of chips and prevent chips from accumulating at the PCD welding piece 30.
[0029] Specifically, the cutting head 20 and the shank 10 can be an integral structure, that is, the cutting head 20 is formed by machining the end of the shank 10, or they can be welded into an integral structure. A transition portion 40 is provided between the shank 10 and the cutting head 20, which can improve the rigidity of the overall tool structure.
[0030] Specifically, the tool holder 10 and the tool head 20 can be made of materials such as tungsten steel, die steel, and high-speed steel, which can meet processing requirements and reduce costs. Using PCD welding pads 30 can ensure processing accuracy and improve the wear resistance of the tool, extending its service life.
[0031] In one embodiment, the outer periphery of the cutter head 20 is provided with a mounting groove 21, forming a mounting portion 22; the PCD solder sheet 30 is disposed on the mounting portion 22, and the groove 31 is located on the side of the PCD solder sheet 30 away from the mounting portion 20; a plurality of grooves 31 are arranged sequentially along the axial direction of the cutter head 20.
[0032] The axes of the multiple grooves 31 are parallel, and the axes of all grooves 31 are perpendicular to the axis of the cutter head 20.
[0033] Specifically, the mounting slot 21 facilitates the installation of the PCD welding piece 30 and also facilitates chip removal during material processing, ensuring the reliability of the tool operation. In actual machining, the tool is clamped by the tool holder 10, and the entire tool rotates around its axis, meaning the tool head 20 also rotates. Multiple grooves 31, with their axes parallel and perpendicular to the axis of the tool head 20, facilitate chip removal, allowing chips to enter the grooves 31 and exit in a direction away from the axis of the tool head 20. This guides the chips to flow in a specific direction, thereby reducing cutting force.
[0034] In one embodiment, all grooves 31 have a coating on their surfaces, which reduces friction with chips and facilitates chip removal.
[0035] Specifically, the coating uses diamond-like carbon (DLC) material, which can reduce the coefficient of friction to 0.1 and further improve the flowability of the chips.
[0036] In one embodiment, the thickness of the PCD pad 30 is H, and the depth of the trench 31 is h, satisfying 1 / 30≤h / H≤7 / 15. Specifically, the value can be 1 / 30, 1 / 15, 1 / 5, 4 / 15, 7 / 15, or any value within the range, which can ensure the structural rigidity of the PCD pad 30 and improve the chip removal capability of the trench 31.
[0037] Specifically, the depth h of the groove 31 is 20um to 50um, and can be 20um, 30um, 35um, 50um or any value within the range, which facilitates processing and ensures the structural rigidity of the PCD solder sheet 30.
[0038] In one embodiment, the cutting head 20 is also provided with a plurality of micro-flow holes 23, which are disposed in the mounting groove 21 and correspond to the positions of the micro-flow holes 23 on the surface of the PCD solder pad 30.
[0039] During high-speed rotation machining, the PCD solder pad 30 generates heat. Coolant flows out through the micro-flow holes 23 and is sprayed onto the surface of the PCD solder pad 30, which cools the PCD solder pad 30 and ensures the reliability of the tool operation. When the coolant acts on the surface of the PCD solder pad 30, it also washes away the cutting material in the groove 31, further improving the chip removal capacity of the groove 31.
[0040] Specifically, the cutter head 20 is provided with multiple sets of micro-flow holes 23 along the axial direction. Each set of micro-flow holes 23 corresponds to the position of the groove 31. The diameter of each set of micro-flow holes 23 is larger than the distance between two adjacent grooves 31, so that the coolant sprayed out from all the micro-flow holes 23 can act on the groove 31, avoiding the accumulation of cutting in the groove 31.
[0041] Understandably, the coolant inlet can be located on the side wall of the tool head 20 or tool holder 10, and the tool head 20 or tool holder 10 has a flow channel communicating with the microfluidic holes 23 inside. The tool head 20 or tool holder 10 can also have a central hole along the axial direction, and the central hole communicates with multiple sets of microfluidic holes 23, all of which allow the coolant to be sprayed out from the microfluidic holes 23 and act on the surface of the PCD solder pad 30.
[0042] The PCD welding sheet cutting tool provided by this utility model has multiple grooves 31 on the PCD welding sheet 30. In actual processing applications, the cutting force is reduced by 32% compared with existing tools, which improves the tool's processing efficiency. The cutting head 20 is provided with multiple micro-flow holes 23. After the coolant is introduced, it acts on the PCD welding sheet 30, which reduces its maximum self-cooling temperature by 35%, further ensuring the tool's processing efficiency.
[0043] The PCD solder sheet cutting tool provided by this utility model can reliably achieve surface machining of various metal materials. By setting multiple grooves 31 on the surface of the PCD solder sheet 30, the chips after cutting are guided, preventing chip accumulation at the PCD solder sheet 30 and reducing the cutting force of the PCD solder sheet 30. The cutting head 20 is also provided with micro-flow holes 23, through which coolant acts on the surface of the PCD solder sheet 30, thereby cooling the PCD solder sheet 30 and flushing away chips in the grooves 31, further improving the overall working efficiency of the tool.
[0044] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. A PCD table cutter of a channel microstructure characterised in that: The application relates to a cutting tool, comprising: a shank; a head provided at the end of the shank; a PCD welding sheet provided on the head, the end and the side of the PCD welding sheet protruding from the corresponding surface of the head and provided with a cutting edge; and a plurality of grooves for guiding the flow of chips provided on the PCD welding sheet.
2. A PCD table insert according to claim 1, characterised in that: The outer periphery of the head is provided with a mounting groove and forms a mounting portion; the PCD welding sheet is arranged on the mounting portion, and the grooves are located on the side of the PCD welding sheet away from the mounting portion.
3. A PCD table insert according to claim 1, wherein: The plurality of grooves are arranged in sequence along the axial direction of the head, and the axes of the plurality of grooves are parallel.
4. A PCD table insert according to claim 3, wherein: The axes of all the grooves are perpendicular to the axis of the head.
5. A PCD table insert according to claim 1, wherein: The surfaces of the grooves are all provided with a coating.
6. A PCD table insert according to claim 1, wherein: The thickness of the PCD welding sheet is H, the depth of the grooves is h, and 1 / 30<=h / H<=7 / 15 is satisfied.
7. A PCD table insert according to claim 2, wherein: A plurality of micro flow holes are further arranged on the head, the micro flow holes are arranged in the mounting groove, and the micro flow holes correspond to the positions on the surface of the PCD welding sheet.
8. A PCD table insert according to claim 7, wherein: A plurality of groups of micro flow holes are arranged on the head along the axial direction, each group of micro flow holes corresponds to the position of the groove, and the diameter of each group of micro flow holes is greater than the distance between two adjacent grooves.