Copyright © Philip M. Parker, INSEAD. Terms of Use.

| Year | Description |
| 1997 | Invention patented by Bjorn Ljungberg on July 21th, 1997. Abstract: A body is disclosed with a coating comprising one or more refractory layers of which one layer is an outermost smooth, shiny 110-textured .alpha.-Al.sub.2 O.sub.3 layer. Said A1.sub.2 0.sub.3 layer has a surface appearance almost like a polished A1.sub.2 0.sub.3 layer. Coated tools show improved tool lives compared to prior art tools when used for machining steel or cast iron material preferably for near net shape machining. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.