Multi-blade boring bar
The utility model discloses a multi-blade boring bar which can give consideration to the bending rigidity and the chip removing space. The boring bar comprises a boring bar main body and a plurality of blades, wherein the boring bar main body rotates around an axis and comprises two supporting parts...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a multi-blade boring bar which can give consideration to the bending rigidity and the chip removing space. The boring bar comprises a boring bar main body and a plurality of blades, wherein the boring bar main body rotates around an axis and comprises two supporting parts respectively arranged at two ends and a cutting part arranged between the two supporting parts, and the blades are arranged at the cutting part along the axis and provided with edges. The radial size of the cross section of the cutting part in the direction of the reacting force applied to the edges of the blades is larger than the radial size of the cross section in the other directions. |
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