TOYOKAWA―November 20, 2024―OSG Corporation today announced the expansion of its AE-H end mill series for high-hardness steels with the new AE-CPR2-H 2-flute long neck corner radius carbide end mill and new sizes of the AE-CPR4-H 4-flute long neck corner radius carbide end mill.
The AE-CPR2-H is a 2-flute long neck corner radius carbide end mill optimized for high precision finishing of high-hardness materials. Since the number of cutting edges cutting simultaneously is small, tool deflection is suppressed with low resistance, enabling high-quality processing. The corner radius is designed with a 3-dimensional negative geometry that combines both sharpness and cutting edge rigidity. Furthermore, with the addition of OSG’s DUROREY coating optimized for high-hardness steel, high chipping resistance is achieved even in workpieces of over 60 HRC, enabling long tool life and high-precision machining. The AE-CPR2-H is available from diameter 0.2 x R0.02 to 3 x R0.5 with a total of 201 items.
The AE-CPR4-H is engineered to achieve high-efficiency milling in high-hardness steels. Its unique gash specification with a spiral shape forming from the center to the corner radius improves chip evacuation and prevents chips from getting caught. Chattering is minimized by the AE-CPR4-H’s unequal spacing teeth geometry, enabling highly efficient machining even in deep milling of L/D = 14. With the addition of OSG’s DUROREY coating and smooth surface treatment, surface accuracy is further improved. Sizes from diameter 0.6 x R0.05 to 6 x R1 have been added to the lineup, with a total of 136 new items.
OSG’s AE-H end mill series for high-hardness steels includes multi-flute, radius, ball, long neck and exchangeable head configurations to accommodate a wide range of applications and milling methods with superior performance. For more information on the AE-CPR2-H and the AE-CPR4-H
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