This adhesively-laminated core manufacturing method is a method for manufacturing an adhesively-laminated core by punching a plurality of steel sheet parts while a strip-shaped steel sheet is fed and laminating the steel sheet parts via an adhesive, and includes a step of forming a curing acceleration portion by applying and drying a curing accelerator on one or both surfaces of the strip-shaped steel sheet before a pressing oil is applied, and a step of applying the pressing oil to a surface of the curing acceleration portion.

The present disclosure concerns a process for the blanking of metal parts (1) from a —layered basic material (51) composed of a number of mutually stacked individual layers (50) placed and clamped between a blanking die (80) and a blank holder (70) of a blanking device (100), wherein a blanking punch (31; 32) of the blanking device (100) is moved relative to the blanking die (80) to cut and separate the metal parts (1) from the basic material (51). According to the present disclosure, such multi-layer blanking process is carried out in two successive stages (I, II), whereof a first stage (I) entails the punching of holes (3) by a first blanking punch (31) without applying a counter punch and whereof a second stage (II) entails the blanking of the metal parts (1) by a second blanking punch (32) while being supported by a counter punch (40).

The present disclosure concerns a process for the blanking of metal parts (1) from a —layered basic material (51) composed of a number of mutually stacked individual layers (50) placed and clamped between a blanking die (80) and a blank holder (70) of a blanking device (100), wherein a blanking punch (31; 32) of the blanking device (100) is moved relative to the blanking die (80) to cut and separate the metal parts (1) from the basic material (51). According to the present disclosure, such multi-layer blanking process is carried out in two successive stages (I, II), whereof a first stage (I) entails the punching of holes (3) by a first blanking punch (31) without applying a counter punch and whereof a second stage (II) entails the blanking of the metal parts (1) by a second blanking punch (32) while being supported by a counter punch (40).

A device for performing a method for producing a lamination pack, wherein in the method laminations are cut from an electric strip or sheet; the laminations are placed on top of each other to form a lamination stack; the laminations are connected 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 a tool; mixing the locally plasticized material, at least of the laminations neighboring each other, with the tool; and allowing the plasticized material to cool and fuse the laminations in the edge region to form the lamination pack. The device has a punch press and/or a receptacle for one or a plurality of lamination stacks. The device further has a welding tool that is rotatably driven about an axis of the welding tool and moveable transverse to the axis of rotation.

A device for performing a method for producing a lamination pack, wherein in the method laminations are cut from an electric strip or sheet; the laminations are placed on top of each other to form a lamination stack; the laminations are connected 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 a tool; mixing the locally plasticized material, at least of the laminations neighboring each other, with the tool; and allowing the plasticized material to cool and fuse the laminations in the edge region to form the lamination pack. The device has a punch press and/or a receptacle for one or a plurality of lamination stacks. The device further has a welding tool that is rotatably driven about an axis of the welding tool and moveable transverse to the axis of rotation.

An apparatus for notching comprises a frame with a first stand, a second stand and a headpiece connecting the first stand and the second stand, wherein the stands are arranged to be offset along an x axis with respect to each other. Furthermore, the apparatus comprises a plunger, which is coupled to the headpiece and is movable along a punching axis extending along a y axis.

An apparatus for notching comprises a frame with a first stand, a second stand and a headpiece connecting the first stand and the second stand, wherein the stands are arranged to be offset along an x axis with respect to each other. Furthermore, the apparatus comprises a plunger, which is coupled to the headpiece and is movable along a punching axis extending along a y axis.

Metal sheets are connected in that a hole is introduced into metal sheets of a first stack, and a region of metal sheets of a second stack are deformed in a stack direction. The deformed region can be plastically deformed in such a way that there is interlocking of the deformed region with at least one metal sheet lying below same. In embodiments, the hole has a shape with a reduced width at the center.

The present disclosure concerns a process for the blanking of metal parts (1) from a—layered basic material (51) composed of a number of mutually stacked individual layers (50) placed and clamped between a blanking die (80) and a blank holder (70) of a blanking device (100), wherein a blanking punch (31; 32) of the blanking device (100) is moved relative to the blanking die (80) to cut and separate the metal parts (1) from the basic material (51). According to the present disclosure, such multi-layer blanking process is carried out in two successive stages (I, II), whereof a first stage (I) entails the punching of holes (3) by a first blanking punch (31) without applying a counter punch and whereof a second stage (II) entails the blanking of the metal parts (1) by a second blanking punch (32) while being supported by a counter punch (40).

The present disclosure concerns a process for the blanking of metal parts (1) from a—layered basic material (51) composed of a number of mutually stacked individual layers (50) placed and clamped between a blanking die (80) and a blank holder (70) of a blanking device (100), wherein a blanking punch (31; 32) of the blanking device (100) is moved relative to the blanking die (80) to cut and separate the metal parts (1) from the basic material (51). According to the present disclosure, such multi-layer blanking process is carried out in two successive stages (I, II), whereof a first stage (I) entails the punching of holes (3) by a first blanking punch (31) without applying a counter punch and whereof a second stage (II) entails the blanking of the metal parts (1) by a second blanking punch (32) while being supported by a counter punch (40).