Innovation never sleeps
In 1969, the same year as the first moon landing, Sandvik Coromant introduced the world's first CVD-coated, cemented carbide insert—an ISO P25 grade. Since then, we have continued to lead the way in tool material- and process development. GC4325 is the 7th generation of that grade and is once again a ground-breaking technological breakthrough.
The Inveio effect
The tightly packed, uni-directional crystals create a strong barrier toward the cutting zone and chip. This greatly improves crater wear and flank wear resistance. Another effect is that heat is more rapidly lead away from the cutting zone, helping the cutting edge stay in shape for longer times in cut.
Predictability and long tool life
Inveio™ has the greatest single effect on the insert strength, wear resistance, and tool duration. The effect of the Inveio coating is combined with all other elements of the insert: the substrate, the shape of the cutting edge, and the post-treatment process. Together, this results in long and predictable tool life.
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Steel turning grade GC4325 with Inveio
GC4325: On the edge