Single-blade left-hand milling cutter for die copper electrode processing, and application method thereof
A technology of copper electrodes and molds, which is applied in the field of milling processing, can solve the problems of easy chipping at the tip of the tool, short tool life, and increased processing costs, and achieve the goal of overcoming the problem of knife lines, ensuring surface quality, and reducing processing costs. Effect
Pending Publication Date: 2019-04-02
DALIAN UNIV OF TECH
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0009] 1) Patent 201710566021.3, a method for deburring copper electrodes, has defects including: it can only be applied to the electrode processing with a flat top surface, not suitable for inclined or curved surface electrode processing
[0010] 2) Patent 201120231256.6, a CNC end mill for burr-free processing of composite materials, has defects including: left and right rotating cutting edges are arranged staggeredly, and there are overlapped areas
Due to the inevitable tool eccentricity, tool marks will be left on the surface of the workpiece, which is not suitable for copper electrode processing with high surface quality requirements
In addition, the tool is only suitable for side milling, not for inclined plane or curved surface electrode machining
[0011] 3) 201720225087.1 A burr-free side milling cutter, the defects include: the left and right rotating cutting edges are arranged in a staggered manner, and there are overlapped areas
Due to the inevitable tool eccentricity, tool marks will be left on the surface of the workpiece, which is not suitable for copper electrode processing with high surface quality requirements
In addition, the tool is only suitable for side milling, not for inclined plane or curved surface electrode machining
[0012] 4) The single-edged left-handed tool used for blanking acrylic sheets has defects including: the tip of the tool is sharp, and there is no strengthening treatment for rounding or chamfering. When it is applied to side milling where the tool tip participates in cutting, the tool tip The parts are easy to chip or wear quickly, and the tool life is short
In addition, the sharp tip cannot be used for electrode machining on inclined planes or curved surfaces
[0013] In the actual processing of precision copper electrodes in molds, the burr size is often reduced by repeated finishing methods, resulting in prolonged processing time and increased processing costs.
Method used
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Embodiment 1
[0045]Such as image 3 As shown, the tool diameter is 2mm, the single edge is left-handed, the helix angle is 35°, the secondary deflection angle is 15°, and the corner radius of the tool tip is 0.4mm. When using the milling cutter to finish the copper electrode, the top surface of the electrode is first processed by the ordinary optimal milling cutter, and then the side of the electrode is processed by up-milling with the left-handed cutter, and the axial depth of cut is 1 mm.
Embodiment 2
[0047] Such as Figure 4 As shown, the tool diameter is 4mm, the single edge is left-handed, the helix angle is 35°, the secondary deflection angle is 15°, and the corner radius of the tool tip is 1.5mm. When using this milling cutter to fine-machine a copper electrode with a beveled side, first select an ordinary preferred milling cutter to process the top surface of the electrode, and then use the left-handed cutter to reverse-mill the side of the electrode with a cutting depth of 0.05 mm.
Embodiment 3
[0049] Such as Figure 5 As shown, the tool diameter is 2mm, the single edge is left-handed, the helix angle is 35°, the secondary deflection angle is 15°, and the corner radius of the tool tip is 0.8mm. When using the milling cutter to finish machining the copper electrode whose top surface is composed of a bevel, the side of the electrode is processed by up-cut milling at the same height as the rounded corner of the left-handed cutter, with a cutting depth of 0.03 mm.
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Abstract
The invention provides a single-blade left-hand milling cutter for die copper electrode processing, and an application method thereof. The milling cutter comprises a hard alloy cylinder milling cutterbody, wherein the diameter of the hard alloy cylinder milling cutter is 0.3 to 4mm; the milling cutter is provided with a left-hand blade; and a tool nose is provided with a fillet or a chamfer. Whenthe tool nose of the hard alloy cylinder milling cutter body is provided with the fillet, a spiral angle beta of a side blade is 20 degrees to 60 degrees, the fillet radius R of the tool nose is 0.05to 1.5mm, and the auxiliary angle k' is 5 degrees to 20 degrees. When the tool nose of the hard alloy cylinder milling cutter body is provided with the chamfer, a spiral angle beta of the side bladeis 20 degrees to 60 degrees, the chamfer is 45 degrees, the side length of the chamfer is 0.05 to 0.2mm, and the auxiliary angle k' is 5 degrees to 20 degrees. According to the single-blade left-handmilling cutter for die copper electrode processing, and the application method thereof provided by the invention, the cutting burrs occurred during die copper electrode processing can be effectively inhibited, the tool nose is not easy to break and damage, and the service life of the cutter is long.
Description
technical field [0001] The invention relates to the technical field of milling, in particular to a single-edged left-handed milling cutter for processing mold copper electrodes and a method for using the same. Background technique [0002] Mold is an important basic process equipment in the manufacturing industry. The mass production of industrial products and the development of new products are inseparable from molds. 60%-90% of the parts in common industrial products need to be formed by molds. [0003] With the development of society, many molded products, especially personal electronic products, have higher and higher requirements for appearance and detail features, so that copper electrodes for processing related molds need to retain a large number of sharp edge features. Due to the good shape of the copper electrode material, cutting burrs are easily generated when milling sharp edges. When the electrode parts are small in size and require high edge and surface qualit...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B23C5/02B23C3/00
CPCB23C3/00B23C5/02B23C2210/0485B23C2210/0407
Inventor 魏兆成姜俊郭锴强
Owner DALIAN UNIV OF TECH