IP Library › Granted Patent US 7,082,675
Granted Patent B2
US 7,082,675 · App. 09/899,694 · Granted Aug 1, 2006

Method for manufacturing a solid core of laminations

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Quick Facts
Patent No.
US 7,082,675
App. No.
09/899,694
Granted
Aug 1, 2006
Kind
B2
Abstract

In a method for manufacturing a solid core of laminations, a sheet metal web is cut in the longitudinal direction of the sheet metal web to produce at least two sheet metal strips. The sheet metal strips are separated in a direction transverse to the longitudinal direction of the sheet metal strips to form laminations. The laminations are joined to form a solid core. Joining can be carried out by welding, riveting, gluing or pressing.

Claims (18)

1. A method for manufacturing a solid core of laminations, the method comprising the steps of:

cutting a sheet metal web in a longitudinal direction of the sheet metal web to produce at least two sheet metal strips of a width matching a width of laminations to be produced from the sheet metal strips to eliminate sheet metal waste of the sheet metal web;

separating the sheet metal strips in a direction transverse to the longitudinal direction of the sheet metal strips to form laminations;

joining the laminations to form a solid core;

deburring the laminations after the step of joining:

wherein the step of joining comprises the step of providing a joining tool with tool parts to connect the laminations, wherein, in the step of deburring, the tool parts of the joining tool are moved toward the laminations such that the burrs are pressed away by plastic deformation.

2. The method according to claim 1 , wherein in the step of cutting the sheet metal strips are cut to different widths.

3. The method according to claim 1 , further comprising the step of providing the sheet metal strips with positive-locking elements before the step of separating.

4. The method according to claim 3 , wherein the positive-locking elements are wart-shaped projections.

5. The method according to claim 1 , wherein the step of joining comprises the step of interlocking the laminations to form the solid core.

6. The method according to claim 1 , wherein the step of joining comprises the steps of providing a tubular receptacle and inserting the laminations into the tubular receptacle to form the solid core.

7. The method according to claim 1 , wherein the step of joining comprises the step of riveting the laminations to form the solid core.

8. The method according to claim 1 , wherein the step of joining comprises the step of welding the laminations to form the solid core.

9. The method according to claim 1 , wherein the step of joining comprises the step of wrapping the laminations to form the solid core.

10. The method according to claim 1 , wherein the step of joining comprises the step of gluing the laminations to form the solid core.

11. The method according to claim 1 , wherein the step of joining comprises the step of moving the tool parts toward the laminations.

12. The method according to claim 1 , wherein the step of joining comprises the step of providing a joining tool to connect the laminations.

13. The method according to claim 11 , wherein the step of joining comprises the step of moving the tool parts independently from one another toward the laminations.