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Wear forms and preventive measures of high hardness end mills
The basic law of wear of high hardness end mills is similar to that of turning tools. The cutting thickness of high-hardness end mills is small, especially when up-milling, the cutter teeth squeeze and slide seriously on the surface of the workpiece, so the wear of the milling cutter mainly occurs on the back.
Release time:
2022-06-17
The basic law of wear of high hardness end mills is similar to that of turning tools. The cutting thickness of high-hardness end mills is small, especially when up-milling, the cutter teeth squeeze and slide seriously on the surface of the workpiece, so the wear of the milling cutter mainly occurs on the back. When milling steel parts with tungsten steel face milling cutter, due to the high cutting speed, the sliding speed of chips along the front is large, so the rear wears at the same time, and the front also has a small milling cutter wear.
Prevention measures for tungsten steel milling cutter
(l) Reasonable selection of milling cutter blade grades: blade materials with high toughness, low thermal crack resistance, and good heat resistance and wear resistance should be used.
(2) Reasonable selection of milling amount: Under certain processing conditions, there is a safe working area that does not cause damage. Selecting Vc and ∫z within the safe working area can ensure the normal operation of the milling cutter and prevent the milling cutter from being worn.
(3) Reasonable selection of the relative position between the workpiece and the milling cutter: Reasonable selection of the installation position of the face milling cutter plays an important role in reducing the wear of the face milling cutter.
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