Crankshaft machining and finishing
AssigneeBoehringer Werkzeugmaschinen GmbH
InventorsRolf Santorius, Matthias Kohlhase
Life of this patent
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Abstract
A method of machining rotationally symmetrical parts, in particular crankshafts, in particular the bearing surfaces of crankshafts, until they are in a condition of being ready for use, that is to say the condition in which the crankshaft can be installed in an engine without the further removal of material at the bearing surfaces. The object of the invention is to simplify the removal of material when machining bearing locations of a crankshaft. In the method according to the invention for finishing machining rotary parts, in a condition such that they are ready for use, after the original shaping operation removal of material is effected only by cutting machining with a given cutting edge and subsequent finishing.
Claims13
A method of finishing machining a bearing location of a crankshaft comprising:
- performing an original shaping operation,
- effecting removal of material only by a cutting machining operation with a given cutting edge and a subsequent finishing operation, and
- effecting a transfer from the cutting machining operation to the finishing operation when:
- a) a roundness deviation of the bearing location is less than 60 μm, and
- b) a diameter deviation of the bearing location is less than 200 μm.
Dependencies are inferred from the claim text.