Method for Increasing the Strength of a Part
AssigneeMaschinenfabrik Alfing Kessler GmbH
InventorsAlfons Reeb, Jochen Schmidt
Life of this patent
Estimating the term…
Abstract
In a method for increasing the strength of a component subjected to torsional and flexural stress, in particular of a crankshaft, in a first step essentially the entire component is provided with a nitriding layer. In a second step, the nitriding layer is at least partially removed in at least one highly stressed region of the component by means of cutting machining, and, in a third step, the at least one highly stressed component region freed of the nitriding layer is mechanically strain-hardened.
Claims17
A method for increasing the strength of a component subjected to torsional and flexural stress, in particular of a crankshaft (1), in a first step essentially the entire component being provided with a nitriding layer (6), in a second step the nitriding layer (6) being at least partially removed in at least one highly stressed region (5) of the component by means of cutting machining, and, in a third step, the at least one highly stressed component region (5) freed of the nitriding layer (6) being mechanically strain-hardened.
An apparatus for the mechanical strain hardening of a component subjected to torsional and flexural stress, in particular of a crankshaft (1), with a strengthening tool (10) suitable for applying a force to the component, and with a steading device (11) which absorbs the force of the at least one strengthening tool (10) and which is mounted by means of a bearing device (15) in such a way that it is capable of absorbing forces which are introduced by the strengthening tool (12) in the case of slight oblique positions of the latter and which act obliquely on the surface of the component (1).
Dependencies are inferred from the claim text.