Support pad for long hole drill
AssigneeSandvik Intellectual Property AB
InventorsRaimo Annanolli, Veronica Böstrom
Life of this patent
Estimating the term…
Abstract
Support pad for a long hole drill head wherein the support pad includes a base body with a bottom surface, at least one side surface and a top surface. The top surface is arranged to function as a wear surface and is defined by a titanium-free wear-resistant coating, whereas the remaining surfaces of the support pad are defined by a titanium-containing wear-resisting coating.
Claims22
A support pad adapted for use on a long hole drill head, the support pad including a bottom support surface, a top wear surface, and a peripheral surface disposed between the support surface and the wear surface, wherein the support surface and the peripheral surface are defined by a titanium-containing wear-resistant coating, and the wear surface is defined by a titanium-free wear-resistant coating.
A support pad for use in a long hole drill head, the support pad comprising:
- a cemented carbide substrate;
- an undercoating encasing the substrate;
- a titanium-free wear-resistant coating encasing the substrate and undercoating;
- and
- a titanium-containing wear-resistant coating on a bottom surface and all peripheral surfaces so that a top surface retains the titanium-free wear-resistant coating as an exposed surface.
Dependencies are inferred from the claim text.