Efficient milling cutter for machining titanium alloy and stainless steel
By using ultra-microcrystalline alloy materials and an optimized milling cutter structure, the vibration and chip removal problems of traditional cutting tools when machining titanium alloys and stainless steel have been solved, achieving efficient and stable machining results.
Patent Information
- Application Number
- CN202520548093.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Traditional carbide cutting tools are prone to problems such as micro-chipping, chip entanglement, cutting force fluctuation, built-up edge, and difficulty in vibration suppression when machining titanium alloys and stainless steel. In particular, the tool wear rate is high and the surface roughness is reduced during the work hardening process.
The milling cutter, made of ultra-microcrystalline alloy material, features a multi-angled milling edge and chip grooves. Combined with a nano-composite coating, it optimizes the structure of the milling edge and rake face, enhancing tool rigidity and improving chip removal capability.
It effectively reduces tool vibration during machining, improves tool rigidity and chip removal capacity, reduces heat generation, and enhances machining performance and tool life.
Smart Images
Figure CN223876151U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of cutting tools, in particular to a high -efficient milling cutter for titanium alloy and stainless steel machining. BACKGROUND
[0002] The end mill is the most commonly used milling cutter on the numerical control machine tool, and the cylindrical surface and the end face of the end mill have cutting tools, which can simultaneously cut or separately cut.
[0003] Titanium alloy and stainless steel have low thermal conductivity, high temperature adhesion, high work hardening rate and high ductility, so it is necessary to solve the problems of chip build-up inhibition and cutting force fluctuation control.
[0004] Traditional hard alloy cutting tools are prone to micro-chipping and chip winding when machining titanium alloy and stainless steel workpieces. INVENTION CONTENTS
[0005] The utility model discloses a high -efficient milling cutter for titanium alloy and stainless steel machining, which is made of ultramicrocrystalline alloy material, and cooperates with multiple angle segmentation and multiple different chip groove angles of the cutting tool.
[0006] To achieve the above purpose, the following technical solutions are adopted:
[0007] A high -efficient milling cutter for titanium alloy and stainless steel machining, comprising a cylindrical cutter body, a cutting part and a tool shank arranged at both ends of the cutter body, the cutting part comprising a plurality of end teeth on the end face of the cutter body and a plurality of milling edges spirally extending from the end teeth to the peripheral surface of the cutter body, a chip groove being formed between adjacent milling edges, the cutter body being made of ultramicrocrystalline alloy material, the peripheral edge of the milling edge being circular, the rake face being arc-shaped, and the included angle of each milling edge being different.
[0008] Further, the relief angle of the bottom edge of the milling edge is 8°.
[0009] Further, the chip groove is spiral.
[0010] Further, the angle of each chip groove is different.
[0011] Further, the milling edge is mirror treated and coated with a nano composite coating.
[0012] Compared with the prior art, the utility model has the beneficial effects that:
[0013] The milling cutter of the patent is made of high-quality super-microcrystal alloy material containing 12% of cobalt, and the included angles of each milling edge are different, the cutter is divided into different angles, and the multiple different chip groove angles effectively reduce the vibration of the cutter and workpiece during processing, ensure the rigidity of the cutter and good processing performance, in addition, the special circular peripheral edge design effectively improves the strength of the peripheral edge during processing, the circular arc of the rake face effectively reduces the heat generated during processing, the chip groove with special parabolic structure has sufficient chip space and excellent chip removal capacity, and the use effect is better. BRIEF DESCRIPTION OF DRAWINGS
[0014] ATTACHED Figure 1 It is the front view structure schematic diagram of the utility model.
[0015] ATTACHED Figure 2 It is the side view structure schematic diagram of the utility model.
[0016] ATTACHED Figure 3 It is the attached Figure 1 structure section view of the utility model.
[0017] ATTACHED Figure 4 It is the attached Figure 2 structure section view of the utility model.
[0018] ATTACHED Figure 5 It is the attached Figure 2 structure section view of the utility model.
[0019] ATTACHED Figure 6 It is the attached Figure 5 structure enlarged view of the utility model.
[0020] REFERENCE NUMERALS IN THE DRAWINGS:
[0021] 1, cutter body, 2, cutting part, 3, shank, 4, end tooth, 5, milling edge, 6, chip groove, 7, peripheral edge, 8, rake face. DETAILED DESCRIPTION
[0022] The utility model will be further described below in combination with specific embodiments. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the present application.
[0023] This utility model describes a high-efficiency milling cutter for machining titanium alloys and stainless steel. The main structure includes a cylindrical cutter body 1, with a cutting section 2 and a shank 3 at each end. The cutting section 2 includes multiple end teeth 4 located on the end face of the cutter body 1 and multiple milling edges 5 extending spirally from the end teeth 4 towards the circumference of the cutter body 1. Adjacent milling edges 5 form a spiral chip groove 6 with a parabolic cross-section. This special spiral parabolic chip groove 6 provides sufficient chip space and excellent chip removal capability. The cutter body 1 is made of high-quality microcrystalline alloy material containing 12% cobalt. The outer peripheral edge 7 of the milling edge 5 is circular, and the rake face 8 is arc-shaped. This special circular outer peripheral edge 7 design effectively improves the strength of the outer peripheral edge 7 during milling, and the deepened arc of the rake face 8 effectively reduces the heat generated during machining. (See attached diagram.) Figure 3 As shown, the included angle occupied by each of the milling edges 5 is different, totaling 360°, for example, as shown in the attached figure. Figure 3 The four milling edges have angles of 91°, 92°, 88°, and 89°, respectively. These four different angles effectively reduce the vibration between the tool and the workpiece during machining, ensuring tool rigidity while maintaining good machining performance.
[0024] Preferred options are listed below. Figure 5 and attached Figure 6 As shown, the back angle of the bottom edge of the milling blade 5 is 8°, with special rounded corner protection, and the first cutting edge of the bottom edge is optimized to increase the back angle by 0.1D. Combined with the material of the tool itself and the different angles of the four milling blades 5, it has excellent usability and can be used for cycloidal milling, high-efficiency machining or precision machining.
[0025] Preferably, each of the chip removal grooves 6 has a different angle. The four different chip removal groove angles, combined with the four different milling edge angles 5, can further reduce the vibration of the tool and workpiece during machining.
[0026] Preferably, the outer peripheral cutting edge 7, the rake face 8, and the chip removal groove 6 of the milling cutting edge 5 are all mirror-finished and coated with a nano-composite coating. After coating, fine sanding is performed to effectively prevent the occurrence of chip adhesion to the tool during machining, reduce the friction between the chips and the tool surface, and thus facilitate the removal of chips.
[0027] Experimental data:
[0028] Name Conventional tool Object of the patent Tool life 60 minutes 100 minutes Surface quality Ra 1.6-3.2 μm Ra 0.8-1.6 μm Cutting force fluctuation ±18％ ±8％ Tool change frequency 6 times / shift 3.6 times / shift
[0029] The milling cutter of the patent is made of high-quality super-microcrystal alloy material containing 12% of cobalt, and the included angles of each milling edge 5 are different, cooperating with different angle divisions of the cutter, and in addition, the angles of the plurality of chip flutes 6, effectively reducing the vibration of the cutter and workpiece during processing, ensuring the rigidity of the cutter and good processing performance. In addition, the special circular peripheral edge design of the patent effectively improves the strength of the peripheral edge during processing, the arc of the rake face deepens to effectively reduce the heat generated during processing, and the special parabolic structure of the chip flute 6 has sufficient chip space and excellent chip removal capacity, and the use effect is better.
Claims
1. A high-efficiency milling cutter for machining titanium alloys and stainless steel, comprising a cylindrical cutter body (1), both ends of the cutter body (1) being provided with a cutting portion (2) and a shank (3) respectively, the cutting portion (2) comprising a plurality of end teeth (4) on the end face of the cutter body (1) and a plurality of milling edges (5) extending helically from the end teeth (4) to the peripheral surface of the cutter body (1) respectively, a chip flute (6) being formed between adjacent milling edges (5), characterized in that: The cutter body (1) is made of ultra-microcrystal alloy material, the peripheral edge (7) of the milling edge (5) is circular, the rake face (8) is arc-shaped, and the included angles of each milling edge (5) are different.
2. The high efficiency milling cutter for machining titanium alloy and stainless steel according to claim 1, characterized in that: The relief angle of the bottom edge of the milling edge (5) is 8°.
3. The high efficiency milling cutter for machining titanium alloy and stainless steel according to claim 1, characterized in that: The chip flute (6) is spiral.
4. The high-efficiency milling cutter for machining titanium alloy and stainless steel according to claim 1 or 3, characterized in that: The angles of each chip flute (6) are different.
5. The high efficiency milling cutter for machining titanium alloys and stainless steel according to claim 1, characterized in that: The milling edge (5) is mirror-finished and coated with a nano-composite coating.