B - Operations – Transporting – 24 – B
Patent
B - Operations, Transporting
24
B
B24B 39/00 (2006.01) B21H 5/02 (2006.01) B21H 7/16 (2006.01) B23P 9/02 (2006.01) C21D 7/04 (2006.01) F01D 5/28 (2006.01) B21H 7/18 (2006.01)
Patent
CA 2158761
The invention relates to a method for work-hardening a component (2), which has to be loaded along a loading axis (1), by rolling in a notch (3) extending approximately at right angles to the loading axis (1), which notch (3) has a minimum radius of curvature (4) which has to be determined in a cross-section parallel to the loading axis (1). The notch (3) is work-hardened by rolling along a plurality of tracks (5) adjacent to one another along the loading axis (1) and directed approximately at right angles to the loading axis (1), each track (5) covering only a part of the notch (3). Compressive internal stresses are generated which have axial components (17) and tangential components (18) relative to the loading axis (1), the axial components (17) being substantially larger than the tangential components (18). This method is particularly suitable for the work-hardening by rolling of a retention groove (3) in a root part (11) of a turbine blade (2).
Seeger Horst
Thiele Dieter
Wagner Hans
Aktiengesellschaft Siemens
Smart & Biggar
LandOfFree
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