Integral hard alloy T-shaped cutter

Abstract

The utility model discloses an integral type hard alloy T-shaped cutter which comprises a cutter handle, and a cutter head made of diamond is arranged at the tail end of the cutter handle through a step portion and a connecting portion. The peripheral surface of the tool bit is an outer machining surface; a chamfer is arranged at the position, close to the front axial machining face, of the outer machining face. A spiral machining surface is arranged on the axial machining surface; the spiral machining surface is provided with a plurality of spirally arranged end tooth structures, and each end tooth structure comprises a front end tooth and a rear end tooth; the angle of the front end teeth ranges from 11 degrees to 13 degrees, and the angle of the rear end teeth ranges from 4 degrees to 6 degrees. The radial circumferential edge of the spiral machining surface is provided with a radial circumferential edge front angle and a radial circumferential edge rear angle; the angle of the front angle of the radial circumferential blade is 11-13 degrees, and the angle of the rear angle of the radial circumferential blade is 23-27 degrees. The tool is specially developed for aluminum alloy products, the products can be bright and free of burrs, the probability of breakage of the tool nose is greatly reduced, and the service life of the tool is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of alloy processing technology, specifically to an integral cemented carbide T-shaped tool. Background Technology

[0002] The main technical challenges in groove machining of aluminum alloy products include the following aspects:

[0003] High cutting force: Aluminum alloys have good thermal conductivity but relatively low hardness, which can easily generate large cutting forces during processing, leading to accelerated tool wear and affecting machining accuracy.

[0004] High cutting temperature: Due to the high thermal conductivity of aluminum alloys, the heat generated during cutting is not easily dissipated, resulting in an increase in temperature in the cutting area, which may cause material deformation or tool damage.

[0005] Work hardening: Aluminum alloys are prone to work hardening during processing, which increases the material's hardness and further increases the difficulty of cutting.

[0006] Surface quality: Grooving requires a high degree of surface roughness, but aluminum alloys are prone to burrs, built-up edges, etc. during processing, which affect surface quality.

[0007] Tool selection and wear: Machining aluminum alloys places high demands on the selection of tool materials, geometric parameters, and cutting parameters. The wear pattern and wear rate of the tool also affect the machining results.

[0008] Chip breaking and chip removal: Chips generated during aluminum alloy machining are relatively long and not easy to break. They tend to get tangled on the cutting tool or workpiece, affecting the continuity and safety of machining.

[0009] Therefore, a specially designed cutting tool is needed, primarily for grooving aluminum alloy products in the 3C industry. 3C products have high requirements for precision, surface roughness, and tool life. This tool is specifically developed for aluminum alloy products, and its main features include producing a bright, burr-free finish with excellent appearance quality. Its unique rounded end face design significantly reduces the probability of chipping at the tool tip, effectively increasing the tool's lifespan. Utility Model Content

[0010] In order to overcome the above-mentioned defects of the prior art, the purpose of this utility model is to provide an integral carbide T-shaped cutter.

[0011] To achieve the objective of this utility model, the technical solution adopted is as follows:

[0012] A one-piece carbide T-shaped cutter, comprising:

[0013] The handle has a diamond-shaped cutting tip at its end via a stepped portion and a connecting portion;

[0014] The outer peripheral surface of the cutter head is an externally machined surface;

[0015] A chamfer is provided on the outer machined surface near the front axial machined surface;

[0016] A spiral machining surface is provided on the axial machining surface;

[0017] The spiral machining surface is provided with a number of spirally arranged end tooth structures, and a single end tooth structure includes a front end tooth and a rear end tooth.

[0018] The angle of the front teeth is 11-13°, and the angle of the rear teeth is 4-6°;

[0019] The radial peripheral cutting edge of the spiral machining surface is provided with a radial peripheral cutting edge front angle and a radial peripheral cutting edge rear angle.

[0020] The radial circumferential cutting edge front angle is 11-13°, and the radial circumferential cutting edge rear angle is 23-27°.

[0021] In a preferred embodiment of this utility model, the diameter of the machining circle at the center of the axial machining surface is 1.8.

[0022] In a preferred embodiment of this utility model, the inclination range of the step portion is 50-60°.

[0023] In a preferred embodiment of this utility model, the chamfer ranges from 0.18 to 0.22.

[0024] In a preferred embodiment of this utility model, the integral carbide T-shaped tool is used to cut AL7R03.

[0025] The beneficial effects of this utility model are as follows:

[0026] This utility model of cutting tool is specifically developed for aluminum alloy products. Its main features are that it can make the product bright and burr-free after processing, with excellent appearance quality. The unique end face rounded corner design greatly reduces the probability of chipping at the cutting tip and effectively increases the service life of the tool. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a partial structural diagram of the present invention. Figure 1 .

[0029] Figure 3 This is a partial structural diagram of the present invention. Figure 2 .

[0030] Figure 4 This is a partial structural diagram of the present invention. Figure 3 .

[0031] Figure 5 This is a partial structural diagram of the present invention. Figure 4 . Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, in the following descriptions, well-known structures and technologies have been omitted to avoid unnecessary confusion regarding the concept of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component 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 of this utility model. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] like Figure 1-5 The illustrated integral carbide T-shaped cutter includes a handle 1, and a diamond-material cutting head 4 is provided at the end of the handle 1 via a stepped portion 2 and a connecting portion 3.

[0035] The inclination angle of the step 2 ranges from 50 to 60°. In this embodiment, it is 55°.

[0036] Hard alloy, also known as tungsten carbide, is a high-hardness alloy whose main component is WC, with Co as a binder.

[0037] The outer peripheral surface of the cutter head 4 is an externally machined surface. A chamfer 41 is provided on the externally machined surface near the front axially machined surface. The chamfer 41 ranges from 0.18 to 0.22.

[0038] A helical machining surface is provided on the axial machining surface, and a number of helically arranged end tooth structures 42 are provided on the helical machining surface. Each end tooth structure 42 includes a front tooth 421 and a rear tooth 422. The angle of the front tooth 421 is 11-13° and the angle of the rear tooth 422 is 4-6°.

[0039] The radial circumferential cutting edge 43 of the helical machining surface is provided with a radial circumferential cutting edge rake angle 431 and a radial circumferential cutting edge clearance angle 431. The angle of the radial circumferential cutting edge rake angle 431 is 11-13°, and the angle of the radial circumferential cutting edge clearance angle 432 is 23-27°. The diameter of the machining circle in the middle of the axial machining surface is 1.8.

[0040] The integral carbide T-shaped tool of this invention is designed for cutting AL7R03 aluminum alloy products. Its main features are that it can make the product bright and burr-free after processing, with excellent appearance quality. The unique end face rounded corner design greatly reduces the probability of tool tip chipping and effectively increases the tool's service life.

[0041] The above shows and describes the basic principles, main features, and advantages of this utility model.

[0042] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of this utility model as defined by the appended claims and their equivalents.

Claims

1. A one-piece cemented carbide T-shaped cutter, characterized in that, include: The handle has a diamond-shaped cutting tip at its end via a stepped portion and a connecting portion; The outer peripheral surface of the cutter head is an externally machined surface; A chamfer is provided on the outer machined surface near the front axial machined surface; A spiral machining surface is provided on the axial machining surface; The spiral machining surface is provided with a number of spirally arranged end tooth structures, and a single end tooth structure includes a front end tooth and a rear end tooth. The angle of the front teeth is 11-13°, and the angle of the rear teeth is 4-6°; The radial peripheral cutting edge of the spiral machining surface is provided with a radial peripheral cutting edge front angle and a radial peripheral cutting edge rear angle. The radial circumferential cutting edge front angle is 11-13°, and the radial circumferential cutting edge rear angle is 23-27°.

2. The integral carbide T-shaped tool as described in claim 1, characterized in that, The diameter of the machined circular surface in the middle of the axially machined surface is 1.

8.

3. The integral carbide T-shaped tool as described in claim 1, characterized in that, The inclination range of the stepped section is 50-60°.

4. The integral carbide T-shaped tool as described in claim 1, characterized in that, The chamfer range is 0.18-0.

22.

5. A one-piece cemented carbide T-shaped cutter as described in claim 1, characterized in that, The object to be cut by the integral carbide T-shaped tool is AL7R03.

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