Mitsubishi launches multi-function end mill with shoulder

The high-speed, low-rigidity, low-cost machining center is the mainstream machine tool for producing high value-added products (ie high-precision, high-grade products). It requires cutting tools with low cutting resistance and high cutting precision, which can be realized on low-rigid machine tools. Efficient processing. In order to meet this requirement, Mitsubishi Materials Corporation of Japan developed the APX3000 type shoulder multi-function end mill based on cutting simulation. Now, the APX series has been further expanded, and the APX4000 with shoulder multi-function end mill has been introduced to increase the size of the machine insert and increase the depth of cut.
1 Features of APX4000 tool (1) The maximum depth of cut of the APX3000 is 10mm, while the maximum depth of the APX4000 can reach 15mm, and the thickness of the blade is also increased to about 1.4 times that of the APX3000. The blade strength is further improved.
(2) Low cutting resistance and high rigidity cutting edge shape The APX4000, like the APX3000, has taken various measures to reduce cutting resistance. In order to remove the chips from the rake face, the front face of the APX tool has a convex-shaped chip breaking table. The maximum radial rake angle of the φ32mm milling cutter is +23°, and the maximum axial rake angle is +25°. The chip performance is designed to be convex shape; in order to reduce the contact area with the chip, a double-stage front is adopted to reduce the cutting resistance; the flank face is designed as a spiral surface, which improves the wear resistance of the tool.
Comparative test of cutting resistance between APX4000 and other companies (cutting conditions: workpiece material: SCM440; cutting speed: 160m/min, depth of cut: 13mm, cutting width: 16mm, feed: 0.1-0.3mm/tooth; dry cutting The results show that: Company A's low cutting resistance chipbreaker and APX4000 have the least cutting resistance and good cutting performance.
Contrast test of anti-cracking performance (cutting conditions: workpiece material: S55C; cutting speed: 160m/min, depth of cut: 10mm, cutting width: 10mm; dry cutting) results show that due to the spiral cutting edge and high performance coating Combination, compared with A and B products, APX4000 with shoulder shoulder end mill is a tool with low cutting resistance and excellent wear resistance.
(3) High wall accuracy APX4000 type with shoulder milling cutter milling wall (cutting conditions: workpiece material: SCM440; cutting speed: 160m/min, depth of cut: 13mm × 3 times, cutting width: 10mm; dry cutting) accuracy Extremely high. When the depth of cut is 13 mm, the peak value of the wall surface is about 0.03 mm.
(4) Machine clamp does not re-blade the blade coating Like the APX3000, the APX4000 uses two high-efficiency coating materials, VP15TF and VP20RT. Among them, VP15TF is a versatile general-purpose coating, and VP20RT is a special coating for milling stainless steel molds. Contrast test in the processing of representative SKD11 (HRC50) molds (cutting conditions: machine tool: BT50M/C (BT50); workpiece material: SKD11 hardened steel (HRC50); cutting speed: 80m/min, feed rate : 0.07mm / tooth, cutting depth: 10mm, cutting width: 8mm; single-blade dry cutting) results show that compared with other companies' products, the tool life of APX4000 can be increased by about 25%.
(5) Multi-functionality The APX4000 can be used for milling in a variety of cutting forms. In terms of the shape of the blade body, the blade offset-mounted blade body having a blade diameter larger than the diameter of the shank has a maximum length of 260 mm and can process the deep cavity.
2 APX4000 end mill processing example (see Table 1) (omitted)
1 Processing Example 1: Milling S50C female mold (female mold). The cutting depth is increased to 3 times that of the original end mill, and high-frequency vibration is not generated, and the processing effect is good; 2 Processing Example 2: Milling SKD61 (HRC44) cylinder head mold. The cutting resistance is small, can fully meet the user's requirements, and is well received; 3 processing example 3: milling S55C parts. Compared with the original tool, the feed rate can be increased several times due to the small cutting resistance.

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