Boring tool
AssigneeMitsubishi Heavy Industries, Ltd.
InventorHaruhiko Niitani
Life of this patent
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Abstract
Provided is a boring tool which not only is lightweight but also has both abrasion resistance and high stiffness. More specifically, provided is a boring tool wherein a shaft-like tool body (10) is equipped with cutting bits, and wherein the tool body (10) makes a reciprocating motion, thereby reaming a hole provided to a workpiece to be machined. The tool body (10) is provided with a substrate (11) formed by a carbon fiber reinforced composite material, a hard plating layer (13) consisting of hard plating applied to the surface (10b) of the tool body (10), and a backing layer (12) which is applied between the substrate (11) and the hard plating layer (13) and serves to improve the wettability of the hard plating layer (13).
Claims6
A boring tool including a shaft-like tool body equipped with a cutting bit, the tool body making a reciprocating motion in an axial direction to bore a hole provided in a workpiece to be machined, wherein
- the tool body is provided with a substrate formed from a carbon fiber reinforced composite material, a hard plating layer consisting of hard plating applied to a surface of the tool body, and a backing layer which is applied between the substrate and the hard plating layer and consists of an undercoat for improving wettability of the hard plating, or
- the tool body is provided with a substrate formed from a carbon fiber reinforced composite material, and a thermal-sprayed coating layer formed by thermal-spraying the surface of the tool body with a hard powder.
Dependencies are inferred from the claim text.