Material-removing precision machining tool
AssigneeMapal Fabrik fur Prazionswerk-Zeuge Dr. Kress KG
InventorsDieter Kress, Friedrich Haberle
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Abstract
A reamer for material-removing finishing machining of drilled surfaces in workpieces made of metal. The reamer has a blade insert and two guide bars associated with the blade insert. The first guide bar trails the blade insert, as seen in the direction of rotation of the reamer, by approximately 40.degree. and the second guide bar is arranged opposite the blade insert. The reamer has at least one additional blade insert that leads the second guide bar by approximately 40.degree..
Claims25
A reamer for material-removing finishing machining of a drilled surface in a metal workpiece, the reamer comprising:
- a circular reamer body with a circular surface;
- and
- a plurality of unequally spaced blade inserts and guide bars, including:
- a first blade insert supported in the reamer body and projecting out from the surface, first and second guide bars at the surface and assigned to the first blade insert wherein the first guide bar trails the first blade insert in the direction of rotation by the reamer by approximately 40.degree. and the second guide bar is positioned around the reamer body generally opposite the first blade insert;
- and
- a second blade insert supported in the reamer body and projecting out from the surface and located opposite the first guide bar.
A reamer for material-removing finishing machining of a drilled surface in a metal workpiece, the reamer comprising:
- a circular reamer body with a circular surface;
- and
- a plurality of unequally spaced blade inserts and guide bars, including:
- a first blade insert supported in the reamer body and projecting out from the surface, first and second guide bars at the surface and assigned to the first blade insert wherein the first guide bar trails the first blade insert in the direction of rotation by the reamer by approximately 40.degree. and the second guide bar is positioned around the reamer body generally opposite the first blade insert;
- and
- a second blade insert supported in the reamer body and projecting out from the surface and leading the second guide bar by an angular distance in the range of 20-50.degree..
A reamer for material-removing finishing machining of a drilled surface in a metal workpiece, the reamer comprising:
- a circular reamer body with a circular surface;
- and
- a plurality of unequally spaced blade inserts and guide bars, including:
- a first blade insert supported in the reamer body and projecting out from the surface, first and second guide bars at the surface and assigned to the first blade insert wherein the first guide bar trails the first blade insert in the direction of rotation by the reamer by approximately 40.degree. and the second guide bar is positioned around the reamer body generally opposite the first blade insert;
- a second blade insert supported in the reamer body and projecting out from the surface and leading the second guide bar by an angular distance in the range of 20-50.degree.;
- and
- a third guide bar supported in the reamer body and projecting out from the surface and located opposite the second blade insert.
Dependencies are inferred from the claim text.