Method for machining a casing of an aircraft turboshaft engine and scraper tool for implementing said method
AssigneeSnecma
InventorEric Dany Robert Jean Engrand
Life of this patent
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Abstract
A method for machining a casing of an aircraft turboshaft engine, the casing including an upstream edge and a downstream edge. The method includes: positioning the casing in a chassis; rotating the chassis at a rotational milling speed; milling a downstream edge and/or upstream edge of the casing by a milling device, so as to correct axial length of the casing; and deburring the casing edge so as to remove at least one burr formed in a vicinity of the edge as a result of the milling, the milling device including a scraper tool which turn-machines the burr as the casing is rotated.
Claims11
A method for machining a casing of an aircraft turboshaft engine, the casing extending along a casing axis and including an upstream edge and a downstream edge with respect to an airflow circulation direction inside the aircraft turboshaft engine, the method comprising:
- positioning the casing in a chassis;
- rotating the casing about the casing axis at a milling rotation speed;
- milling the downstream edge and/or the upstream edge of the casing with a milling tool of a milling device so as to correct an axial length of the casing along the casing axis by machining the downstream edge and/or upstream edge with the milling tool while rotating the casing at the milling rotation speed;
- and
- deburring the downstream edge and/or the upstream edge so as to remove at least one burr formed on the downstream edge and/or the upstream edge after the milling, wherein
- the deburring includes using a scraper tool of the milling device in the deburring and machining the at least one burr with the scraper tool while rotating the casing at the milling rotation speed.
Dependencies are inferred from the claim text.