Deep hole boring head and deep hole boring method for boring a production piece

Abstract

The subject of the invention is a deep hole boring head capable of rotating about a central axis (A-A), comprising a body (2) whose front part (4) has at least one cutting edge (8a, 8b, 8c, 8d) followed by a recess (10a, 10b) which leads to a duct (12) inside the said body (2), this duct allowing the chips formed during the boring to be cleared away rearwards, characterized in that it comprises at its front end and at its centre a pilot bit (20) capable of guiding the said head during boring. Use for the boring of a production piece made of titanium, the ratio L/D between the depth L of the hole bored and the diameter D of the latter being greater than or equal to 10, and the diameter D being greater than or equal to 65 mm.

Dependencies are inferred from the claim text.