Which properties are important in metalcutting applications?
Depending upon the type of metalcutting operation (turning, milling, drilling, etc.), different combinations of properties are needed in order to obtain optimum results. For example, in turning and drilling applications the cutting tool is in continuous contact with the workpiece. Hence, for these applications, abrasion resistance and strength are the most important properties to consider. However, in operations such as milling, which invariably involve interrupted cutting, and hence high impact forces, toughness can be an important factor. Grades employed for metalcutting applications are usually based on fine to medium hard phase grain sizes (0.5 to 1.5 m) and low to medium Co contents (6 to 15 wt.%).
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