Collet and collet manufacturers share the characteristics and functions of end mill angles
Release time:
2024-04-22
Collet and collet manufacturers share the characteristics and functions of end mill angles: The angle of the milling cutter is a part of the milling cutter structure. What is the main role of this angle? In fact, the angles that affect the cutting performance of end mills mainly include rake angle, relief angle, and edge inclination angle (helix angle).
Collet and collet manufacturers share the characteristics and functions of end mill angles:
The angle of the milling cutter is a part of the milling cutter structure. What is the main role of this angle?
In fact, the angles that affect the cutting performance of end mills mainly include rake angle, relief angle, and edge inclination angle (helix angle).
Since the main form of tool failure when machining hardened steel is tool tip breakage, an appropriate tool angle should be selected to improve the impact strength of the tool tip, such as using smaller rake and relief angles. Use TiALN coated tools to process hardened steel with a hardness of 55HRC or above, using different rake angles (+15°, +5°, -5°, -15°,) and helix angles (30°, 45°, 60°) The tool cutting 60HRC material found that the tool wear was the smallest with a rake angle of -15° and a helix angle of 60°, indicating that large helix angles and negative rake angles can reduce tool wear.
For indexable milling cutters, different blade shapes have different tip strengths. Generally, the larger the tip angle, the greater the tip strength, and vice versa; when processing hardened steel, blades with larger tip angles should be used. Since the larger the tool nose angle, the greater the cutting force, which requires the machine tool to have good rigidity and greater power. For milling cutters with the same diameter, the greater the number of teeth, the better the rigidity of the cutter holder, and the greater the feed speed that can be adopted, so the cutting efficiency is higher; however, the chip space between the two cutting edges is small, and the chip discharge performance becomes poor. Difference.
Double-tooth milling cutters are suitable for machining soft workpieces with a large depth of cut, while multi-tooth milling cutters are suitable for machining high-hardness (such as hardened steel) materials with a small depth of cut.
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