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Hardness And Toughness Analysis Of Alloy Drill
- Jan 09, 2018 -

The WC-Co carbide drill has unique advantages in hardness and toughness. Tungsten carbide (WC) itself has a very high hardness (more than corundum or alumina) and its hardness rarely decreases with increasing operating temperature. However, it lacks sufficient toughness, which is essential for cutting tools performance. In order to take advantage of the high hardness of tungsten carbide and to improve its toughness, tungsten carbide is bonded together using a metal bond, making this material both far superior in hardness to high-speed steel while still being able to withstand most of the machining Cutting force. In addition, it is able to withstand high cutting temperatures caused by high-speed machining.