A device and a method for connecting sheet metal parts to form lamination stacks in which sheet metal parts are separated from an electrical steel strip using a stamping stage equipped with a punch, wherein the electrical steel strip has a thermally activatable hot-melt adhesive varnish layer on at least one of its flat sides, the separated sheet metal parts are stacked and integrally bonded to one another to form multiple lamination stacks through activation of the hot-melt adhesive varnish layer, wherein a parting compound is applied to the electrical steel strip and/or separated sheet metal part in order to make it easier to divide the stacked sheet metal parts into lamination stacks. In order to achieve advantageous conditions, it is proposed for the punch of the stamping stage to apply a liquid fluid as a parting compound onto the electrical steel strip and/or separated sheet metal part.

A method is for manufacturing a laminated steel sheet comprising laminated a predetermined number of thin steel sheets formed by punching a belt-shaped thin steel sheet into a predetermined shape. This method includes the following steps 1 to 3: step 1: a step of sequentially punching the thin steel sheet into a predetermined shape with a metallic die; step 2: a step of applying a curable composition to a predetermined portion of the thin steel sheet; and step 3: a step of irradiating the curable composition with energy rays. The curable composition is a delayed curable composition which is cured after a lapse of a predetermined time after being irradiated with energy rays.

A method is for manufacturing a laminated steel sheet comprising laminated a predetermined number of thin steel sheets formed by punching a belt-shaped thin steel sheet into a predetermined shape. This method includes the following steps 1 to 3: step 1: a step of sequentially punching the thin steel sheet into a predetermined shape with a metallic die; step 2: a step of applying a curable composition to a predetermined portion of the thin steel sheet; and step 3: a step of irradiating the curable composition with energy rays. The curable composition is a delayed curable composition which is cured after a lapse of a predetermined time after being irradiated with energy rays.

A fluid injector for injecting fluid is disclosed, including a body; a fluid passageway defined in the body and extending from an inlet to an outlet of the fluid injector; a valve seat disposed internally of the body and forming part of the passageway; a valve element that is selectively reciprocated relative to the valve seat to close and open the passageway to fluid flow by seating and unseating the valve element on and from the valve seat, respectively; and an orifice disc disposed in the passageway downstream of the valve seat in a direction of the fluid flow through the fluid injector, the orifice disc including a plurality of dimples and a plurality of orifices defined through the orifice disc, each dimple including at least one orifice located thereon and each dimple having an asymmetrical cross-section.

A machine for machining, such as cutting and/or forming, planar workpieces has an upper tool and a lower tool that are movable toward each other to machine a workpiece arranged therebetween. The upper tool includes at least one cutting tool having at least one cutting edge and a clamping shaft. The lower tool includes a main body having a support surface for the workpiece. The support surface has an opening associated with an inner counter cutting edge. The lower tool has a positioning axis and at least one outer counter cutting edge provided outside of the opening and associated with the support surface. The outer counter cutting edge is aligned with an outer face of the support surface. A distance of the outer counter cutting edge from the position axis and a distance of the inner counter cutting edge from the position axis deviate from each other.

A machine for machining, such as cutting and/or forming, planar workpieces has an upper tool and a lower tool that are movable toward each other to machine a workpiece arranged therebetween. The upper tool includes at least one cutting tool having at least one cutting edge and a clamping shaft. The lower tool includes a main body having a support surface for the workpiece. The support surface has an opening associated with an inner counter cutting edge. The lower tool has a positioning axis and at least one outer counter cutting edge provided outside of the opening and associated with the support surface. The outer counter cutting edge is aligned with an outer face of the support surface. A distance of the outer counter cutting edge from the position axis and a distance of the inner counter cutting edge from the position axis deviate from each other.

Provided is an electric motor which includes an adhesively-laminated core for a stator having excellent productivity and high mechanical strength and that is thus capable of reducing vibration and noise of an electric motor and suppressing iron loss. The adhesively-laminated core for a stator includes electrical steel sheets laminated on each other and each coated on both sides with an insulation coating, and an adhesion part disposed between the electrical steel sheets adjacent to each other in a stacking direction and configured to cause the electrical steel sheets to be adhered to each other. All sets of the electrical steel sheets adjacent to each other in the stacking direction are adhered by the adhesion part, an adhesive forming the adhesion part includes a fast-curing type adhesive and a thermosetting adhesive, and the adhesion part is partially provided between the electrical steel sheets adjacent to each other in the stacking direction.

An uncoiling, blanking and forming method includes the steps of: 1) uncoiling a steel coil, wherein a steel strip uncoiled from the steel coil is cleaned and straightened and is fed by a pinch roller to a blanking region; 2) laser blanking, wherein the steel coil enters the blanking region, is cut by a laser cutting head by way of laser blanking to form sheets with a required shape, with waste materials falling down and being conveyed to the outside; 3) outputting the sheets, wherein the sheets pass over a magnetic telescopic belt conveyor, and then carried by means of a manipulator or a robot to a stamping process; 4) stamping forming, wherein the sheets are stamped to form workpieces; and 5) checking, wherein the workpieces are checked and put in storage. The present invention can achieve joining-up in series of a blanking line and a stamping forming line and realize matching therebetween, and can reduce intermediate steps such as stacking, packing, transportation, positioning, unpacking, carrying, and centring of sheets and stamping-formed workpieces, and also can reduce the room required for transfer, simplify the work flow and joins up procedures in series, to directly machine a material coil by laser blanking to form formed parts.

An uncoiling, blanking and forming method includes the steps of: 1) uncoiling a steel coil, wherein a steel strip uncoiled from the steel coil is cleaned and straightened and is fed by a pinch roller to a blanking region; 2) laser blanking, wherein the steel coil enters the blanking region, is cut by a laser cutting head by way of laser blanking to form sheets with a required shape, with waste materials falling down and being conveyed to the outside; 3) outputting the sheets, wherein the sheets pass over a magnetic telescopic belt conveyor, and then carried by means of a manipulator or a robot to a stamping process; 4) stamping forming, wherein the sheets are stamped to form workpieces; and 5) checking, wherein the workpieces are checked and put in storage. The present invention can achieve joining-up in series of a blanking line and a stamping forming line and realize matching therebetween, and can reduce intermediate steps such as stacking, packing, transportation, positioning, unpacking, carrying, and centring of sheets and stamping-formed workpieces, and also can reduce the room required for transfer, simplify the work flow and joins up procedures in series, to directly machine a material coil by laser blanking to form formed parts.

A processing unit of a machine tool for the punching processing of workpieces, in particular metal sheets, has a punching tool carrier configured to receive a punching tool and a stripper carrier for a stripper. The punching tool carrier can be moved by a punch drive along a stroke axis by a transverse drive element being driven by a punch drive motor relative to the punching tool carrier with a transverse drive movement along a transverse movement axis which extends in the transverse direction of the stroke axis. The stripper carrier can be moved along the stroke axis by a stripper drive, and the transverse drive element of the punch drive during the transverse drive movement can be moved relative to the stripper carrier along the transverse movement axis and the punching tool carrier and the stripper carrier can be moved relative to each other along the stroke axis.