Ionbond has announced the latest addition to their chemical vapor deposition (CVD) coating
portfolio: Ionbond™ CVD 29 Ultra. This coating provides an impressive performance boost in
demanding applications, such as high-performance continuous and interrupted machining, notes a
press communiqué from the US-based company.
Kalpak Shaha, Global Segment Manager Cutting Tools, explains the important structural quality of
the coating: “The enhanced toughness and exceptional hardness of Ionbond™ CVD 29 Ultra is a
result of its specific Al2O3 crystallographic orientation. It gives the coating a larger capacity to
deform before chipping and cracking. This allows the coating to maintain its integrity and to deliver
outstanding wear resistance, reducing both crater and flank wear.”
Ionbond™ CVD 29 Ultra also has high hot hardness and excellent thermal stability, which means it is
a good coating for fast, high-productivity machining. It can also handle machining of sticky materials
well, thanks to a high chemical inertness. “For demanding applications such as turning, milling,
peeling and scarfing, this coating is the smart choice to help you maximize productivity,” summarizes
Kalpak.
Ionbond™ CVD 29 Ultra comes in two colors: gold and black. Gold is the standard color for inserts,
because it provides good wear indication. However, other cutting tool customers may prefer black
rather than gold.
Black is also interesting for forming and molding tools and industrial component applications, such
as aerospace, automotive, defense and oil and gas. In those sectors, the coating’s chemical inertness
is often the most valuable aspect, and the black coating looks better in context. Development
projects are ongoing to qualify the coating in these sectors.