When provisionally blanking a lamination sheet by using a punch for provisional blanking and a counter punch, the displacement of pilot holes located around the lamination sheet is minimized. The progressive die machine (1) comprises a pilot hole punch (72), a punch (9) for provisionally punching an iron core laminate (2) from a strip (W) formed with pilot holes (P), a counter punch (31) provided in a lower die assembly (5) and configured to push the iron core laminate (2) against the punch (9), a stripper plate (13) for separating the strip (W) from the provisional blanking punch after a provisional punching, a punch (10) for completely separating the iron core laminate from the strip. At least a part of the stripper plate (13) associated with the provisionally blanking is not in contact with the strip, and at least a part of an outer peripheral part of the provisionally blanked lamination sheet is formed with a connecting portion (79) connected to the strip.

When provisionally blanking a lamination sheet by using a punch for provisional blanking and a counter punch, the displacement of pilot holes located around the lamination sheet is minimized. The progressive die machine (1) comprises a pilot hole punch (72), a punch (9) for provisionally punching an iron core laminate (2) from a strip (W) formed with pilot holes (P), a counter punch (31) provided in a lower die assembly (5) and configured to push the iron core laminate (2) against the punch (9), a stripper plate (13) for separating the strip (W) from the provisional blanking punch after a provisional punching, a punch (10) for completely separating the iron core laminate from the strip. At least a part of the stripper plate (13) associated with the provisionally blanking is not in contact with the strip, and at least a part of an outer peripheral part of the provisionally blanked lamination sheet is formed with a connecting portion (79) connected to the strip.

A material includes a sheet of metal having a first face and an opposed second face, and a metal grain direction. The first face is textured with a first set of texturing features. Each texturing feature of the first set includes, respectively, a groove cut into the first face and extending along a groove axis, and a barb extending from the groove and away from the first face. The texturing features of the first set are arranged in a plurality of rows, and the groove axes of the texturing features in a given row extend generally parallel to the given row. The rows are generally non-perpendicular to the grain direction.

A material includes a sheet of metal having a first face and an opposed second face, and a metal grain direction. The first face is textured with a first set of texturing features. Each texturing feature of the first set includes, respectively, a groove cut into the first face and extending along a groove axis, and a barb extending from the groove and away from the first face. The texturing features of the first set are arranged in a plurality of rows, and the groove axes of the texturing features in a given row extend generally parallel to the given row. The rows are generally non-perpendicular to the grain direction.

A method of forming a plurality of shaped piece parts from a sheet of material involves arranging a plurality of aligned workpieces into an optimized workpiece pattern, and arranging one or more series of joints that maintains the workpieces in rigid connection and alignment. The joints include one or more particular joints that have an axis of rotation, which permits a first section of the workpieces to be rotated about the axis of rotation with respect to a second set of workpieces to weaken and break the one or more particular joints. The method also involves applying one or more folds across the sheet of material to form one or more pluralities of aligned bends in at least some of the plurality of workpieces. The method further involves breaking the joints to rigidly decouple each of the plurality of shaped workpieces into individual piece parts.

A method of forming a plurality of shaped piece parts from a sheet of material involves arranging a plurality of aligned workpieces into an optimized workpiece pattern, and arranging one or more series of joints that maintains the workpieces in rigid connection and alignment. The joints include one or more particular joints that have an axis of rotation, which permits a first section of the workpieces to be rotated about the axis of rotation with respect to a second set of workpieces to weaken and break the one or more particular joints. The method also involves applying one or more folds across the sheet of material to form one or more pluralities of aligned bends in at least some of the plurality of workpieces. The method further involves breaking the joints to rigidly decouple each of the plurality of shaped workpieces into individual piece parts.

A system and process for fabricating components from sheet material. Various embodiments of the disclosure combine punching of components from sheet material with a scoring process that outlines the components prior to the punching operation. In addition, a system and process where the scored portion of the sheet material that includes the scored outline is subjected to a high compression flattening process prior to the punching operation is disclosed. Performing the flattening operation prior to the punching operation has the effect of streamlining the process. That is, the sheet material can be easily handled and conveyed from the scoring process, through the flattening process, and to the punching process without need for separate handling of the component.

A system and process for fabricating components from sheet material. Various embodiments of the disclosure combine punching of components from sheet material with a scoring process that outlines the components prior to the punching operation. In addition, a system and process where the scored portion of the sheet material that includes the scored outline is subjected to a high compression flattening process prior to the punching operation is disclosed. Performing the flattening operation prior to the punching operation has the effect of streamlining the process. That is, the sheet material can be easily handled and conveyed from the scoring process, through the flattening process, and to the punching process without need for separate handling of the component.

A system for efficiently forming a plurality of shaped piece parts from a sheet of material comprises a sheet of piece part material from which the piece parts can be shaped and cut, a pattern for arranging the plurality of piece parts in a prearranged orientation, a series of joints connecting aligned ones of the piece parts within the pattern, a piece part cutting machine configured to separate a plurality of workpieces from the sheet of material according to the patterns and joints, a bending machine for simultaneously applying a first fold and a second fold, each across a respective set of aligned piece parts without breaking the series of joints, and a detacher for breaking the series of joints to groups and individual ones of joined piece parts.

A system for efficiently forming a plurality of shaped piece parts from a sheet of material comprises a sheet of piece part material from which the piece parts can be shaped and cut, a pattern for arranging the plurality of piece parts in a prearranged orientation, a series of joints connecting aligned ones of the piece parts within the pattern, a piece part cutting machine configured to separate a plurality of workpieces from the sheet of material according to the patterns and joints, a bending machine for simultaneously applying a first fold and a second fold, each across a respective set of aligned piece parts without breaking the series of joints, and a detacher for breaking the series of joints to groups and individual ones of joined piece parts.