Process for forming an annular stack of metallic laminations for the stator of a linear motor and an annular stack of metallic laminations

An annular stack of metallic laminations for the stator of a linear motor, comprising:

• a plurality of metallic laminations (10), which are radially positioned in an annular arrangement, having an internal edge (11) and an external edge (12), and which are laterally and mutually seated by their internal edges (11) that define an internal cylindrical surface (16) of said annular stack;
• and
• a connecting member (20,30,40), which is affixed to the internal edges (11) of the plurality of metallic laminations (10) and which is deformable in order to allow the limited angular displacement of the metallic laminations (10) around their respective internal edges (11), from a mutual parallel condition to a mutual angular spacing condition in the annular stack.

An annular stack of metallic laminations for the stator of a linear motor, comprising:

• a plurality of metallic laminations (10), which are radially positioned in an annular arrangement, having an internal edge (11) and an external edge (12), and which are laterally and mutually seated by their internal edges (11) that define an internal cylindrical surface (16) of said annular stack,
• wherein each metallic lamination (10) has, adjacent to the respective internal edge (11), at least one lowered portion (50) defining a recess in a face of the metallic lamination (10) and, in the other face, a projection to fit in a recess defined in an adjacent metallic lamination (10), but still allow for limited annular displacement of the metallic laminations (10) around their respective internal edges (11), such that the metallic laminations stacked rectilinearly is displaced annually about the internal edges with angular spacing between the metallic laminations.