Process for bending a workpiece

A process for bending a workpiece, comprising:

• placing a first portion of the workpiece in contact with a substantially flat surface so that a second portion of the workpiece overhangs an edge of the substantially flat surface;
• securing the workpiece by urging a tip of a v-shaped portion of a male die onto the workpiece so that so that the workpiece is substantially restrained from linear movement in relation to the substantially flat surface;
• and
• urging the second portion of the workpiece toward the male die.

A process for bending a workpiece at a desired bending location, comprising:

• placing a portion of the workpiece on a substantially flat surface of a work table;
• substantially aligning the desired bending location with an edge of the substantially flat surface;
• clamping the workpiece between the substantially flat surface and a tip of a substantially v-shaped end portion of a male die substantially aligned with the edge of the substantially flat surface;
• placing a substantially cylindrical bending die in contact with a location on the workpiece proximate the edge of the substantially flat surface;
• and
• rotating the bending die substantially around the tip while a point of contact between the workpiece and the bending die remains substantially constant.

A process for bending a workpiece at two locations thereon on a simultaneous basis, comprising:

• placing a first portion of the workpiece on at least one substantially flat surface so that a second portion of the workpiece overhangs a first edge of the at least one substantially flat surface and a third portion of the workpiece overhangs a second edge of the at least one substantially flat surface;
• securing the first portion of the workpiece on the at least one substantially flat surface by clamping the workpiece between the at least one substantially flat surface and a substantially v-shaped end portion of a first male die, and between the at least one substantially flat surface and a substantially v-shaped end portion of a second male die;
• and
• causing the second portion of the workpiece to pivot about a tip of the substantially v-shaped end portion of the first male die by rotating a first bending die around the tip of the substantially v-shaped end portion of the first male die while the first bending die contacts the second portion of the workpiece, and simultaneously causing the third portion of the workpiece to pivot about a tip of the substantially v-shaped end portion of the second male die by rotating a second bending die around the tip of the substantially v-shaped end portion of the second male die while the second bending die contacts the third portion of the workpiece.

A process for forming a transformer-core winding, comprising:

• placing a first portion of a lamina formed from magnetic material on a substantially flat surface so that a second portion of the lamina overhangs an edge of the substantially flat surface;
• securing the first portion of the lamina on the substantially flat surface by clamping the lamina between the substantially flat surface and a substantially v-shaped end portion of a male die;
• causing the second portion of the lamina to pivot around a tip of the substantially v-shaped end portion by rotating a bending die around the tip while the bending die contacts the second portion of the lamina;
• removing the lamina from the substantially flat surface;
• and
• stacking the lamina with other lamina having a substantially similar shape.

An apparatus for bending a workpiece, comprising:

• a work table having a substantially flat surface adapted to receive the workpiece;
• a male die having a substantially v-shaped end portion adapted to exert a contact pressure on the workpiece to thereby secure the workpiece to the work table;
• and
• a bending die adapted to rotate around a tip of the substantially v-shaped end portion while the bending die contacts the workpiece thereby causing a portion of the workpiece to pivot around the tip.