"切割机刀片" can be translated as "cutting machine blade" or "cutter blade for cutting machines".
"Cutting machine blade" is a direct and concise translation, commonly used in industrial contexts.
"Cutter blade for cutting machines" provides a bit more specificity, indicating that the blade is specifically designed for use in cutting machines.
Both expressions are acceptable, and the choice may depend on the specific context or the level of detail required.