Boring bar for internal turning
AssigneeSandvik Intellectual Property AB
InventorGunnar Jansson
Life of this patent
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Abstract
A boring bar, such as for internal turning, includes a front pocket that is defined by a shelf-like surface and a ramp surface, an insert seat that is countersunk in the shelf surface and disposed asymmetrically in relation to a center axis, a chip flute that is countersunk in the outside of the bar is disposed on the same side of the center axis as the insert seat, and an internal channel that supplies a fluid to the front part of the bar. The fluid channel ends in an outlet mouth disposed on the side of the bar that is opposite the insert seat in order to guide a flow of the fluid past the insert seat toward the front opening of the chip flute.
Claims8
A boring bar for internal turning in a hole of a workpiece, the boring bar comprising:
- a center axis about which there is relative rotation with respect to the workpiece;
- a front part including a front end surface and a pocket, the pocket including:
- a shelf-like surface including a countersunk insert seat adapted to receive a turning insert, the insert seat being disposed asymmetrically with respect to the center axis;
- and
- a ramp surface extending obliquely from the shelf surface;
- a chip flute extending backward from a front opening at the ramp surface of the pocket, the chip flute being defined by a recess in an external surface and disposed on a same side of the center axis as is the insert seat;
- and
- an internal channel adapted to supply a fluid to the front part, the internal channel including an outlet mouth disposed on an opposite side of the center axis from the insert seat, wherein the fluid is adapted to flow past the insert seat toward the front opening of the chip flute.
Dependencies are inferred from the claim text.