US 11,738,419 B2
Method for producing a clutch pack formed by clutch plates arranged on top of one another, and device for carrying out a method of this type
Björn Böker, Esslingen (DE)
Assigned to Kienle + Spiess GmbH, Sachsenheim (DE)
Filed by Kienle + Spiess GmbH, Sachsenheim (DE)
Filed on Jul. 20, 2021, as Appl. No. 17/380,101.
Application 17/380,101 is a division of application No. 15/780,075, granted, now 11,084,133, previously published as PCT/EP2016/002019, filed on Nov. 30, 2016.
Claims priority of application No. 10 2015 015 762.0 (DE), filed on Dec. 20, 2015.
Prior Publication US 2021/0346996 A1, Nov. 11, 2021
Int. Cl. B23K 20/12 (2006.01); B23P 23/00 (2006.01); B21D 28/22 (2006.01); B23K 20/233 (2006.01); B23K 20/24 (2006.01); B23K 28/02 (2014.01); H02K 15/02 (2006.01); B23K 20/26 (2006.01); B23K 101/18 (2006.01); B23K 103/10 (2006.01); B23K 37/04 (2006.01)
CPC B23P 23/00 (2013.01) [B21D 28/22 (2013.01); B23K 20/129 (2013.01); B23K 20/1265 (2013.01); B23K 20/2336 (2013.01); B23K 20/24 (2013.01); B23K 20/26 (2013.01); B23K 28/02 (2013.01); H02K 15/02 (2013.01); B23K 20/122 (2013.01); B23K 37/04 (2013.01); B23K 2101/18 (2018.08); B23K 2103/10 (2018.08)] 7 Claims
OG exemplary drawing
 
1. A device for performing a method for producing a lamination pack, the method comprising cutting laminations from an electric strip or electric sheet; placing the laminations on top of each other to form a lamination stack; connecting the laminations by material fusion to each other by: locally plasticizing a material of the laminations in an edge region of the laminations by generating friction heat by at least one tool; mixing the locally plasticized material, at least of the laminations that are neighboring each other, with the at least one tool; and allowing the plasticized material to cool and fuse the laminations in the edge region to form the lamination pack; the device comprising:
at least one punch press configured to cut the laminations from the electric strip or electric sheet;
at least one receptacle disposed at the at least one punch press and configured to place the laminations directly on top of each other in the at least one receptacle to a lamination stack;
at least one friction stir welding tool, wherein the at least one friction stir welding tool is configured to be rotatably driven about an axis of the at least one friction stir welding tool and configured to move transverse to the axis of rotation, wherein the at least one friction stir welding tool is configured to locally plasticize a material of the laminations in an edge region of the laminations by generating friction heat and connect the laminations of the lamination stack in the edge region by material fusion to each other to the lamination pack.