Granted Patent B2

US 7,383,874 · App. 11/457,551 · Granted Jun 10, 2008

Abstract

Claims (47)

1. A method of assembling a mold package, the method comprising the steps of:

providing a barrel core having an inner surface, an outer surface, and at least one barrel core feature extending outwardly from the inner surface;

positioning a cylinder bore liner on the barrel core feature of the barrel core;

providing a handling fixture adapted to assist in assembly of the barrel core;

providing means for producing a magnetic field; and

positioning the means for producing a magnetic field to attract the cylinder bore liner toward the inner surface of the barrel slab core to militate against movement of the cylinder bore liner during assembly of the barrel core in a mold package.

2. The method according to claim 1 , wherein the means for producing a magnetic field is a magnet disposed between the handling fixture and the barrel core.

3. The method according to claim 2 , further comprising the step of positioning the magnet in an aperture formed in the outer surface of the barrel core.

4. The method according to claim 2 , wherein the magnet is attached to the handling fixture.

5. The method according to claim 2 , further comprising the steps of:

positioning the barrel core in the mold package;

releasing the handling fixture from the barrel core; and

moving the magnet and the handling fixture away from the barrel core to release the cylinder bore liner from the magnetic field produced by the magnet.

6. The method according to claim 2 , wherein the magnet is an electromagnet.

7. The method according to claim 2 , wherein the magnet is a rare earth magnet.

8. The method according to claim 2 , further comprising the steps of:

providing the barrel core with a plurality of barrel core features extending outwardly from the inner surface thereof; and

positioning a cylinder bore liner on each of the barrel core features of the barrel core.

9. The method according to claim 8 , further comprising the steps of:

providing a plurality of magnets; and

positioning one of the magnets adjacent each of the barrel core features of the barrel core, wherein a magnetic field produced by the magnets attracts the cylinder bore liner of each barrel core feature toward the inner surface of the barrel core to militate against movement of the cylinder bore liner during assembly of the barrel core in a mold package.

10. The method according to claim 1 , wherein the cylinder bore liners are assembled into tooling for the barrel core and the barrel core features of the barrel core are formed within the cylinder bore liners.

11. A method of assembling a mold package, the method comprising the steps of:

providing a barrel slab core having an inner surface, an outer surface, and a plurality of barrel core features extending outwardly from the inner surface;

positioning a cylinder bore liner on each of the barrel core features of the barrel slab core;

providing a handling fixture adapted to be releasably connected to the barrel slab core;

providing at least one magnet; and

positioning the at least one magnet between the barrel slab core and the handling fixture, wherein a magnetic field produced by the magnet attracts the cylinder bore liner of each barrel core feature toward the inner surface of the barrel slab core to militate against movement of the cylinder bore liner during assembly of the barrel slab core in a mold package.

12. The method according to claim 11 , further comprising the step of positioning the at least one magnet in an aperture formed in the outer surface of the barrel slab core.

13. The method according to claim 11 , wherein the magnet is attached to the handling fixture.

14. The method according to claim 11 , further comprising the steps of:

positioning the barrel slab core in the mold package;

releasing the handling fixture from the barrel slab core; and

moving the at least one magnet and the handling fixture away from the barrel slab core to release the cylinder bore liner from the magnetic field produced by the at least one magnet.

15. The method according to claim 11 , wherein the at least one magnet is an electromagnet.

16. The method according to claim 11 , wherein the at least one magnet is a rare earth magnet.

17. The method according to claim 11 , further comprising the steps of:

providing a plurality of magnets; and

positioning one of the magnets adjacent each of the barrel core features of the barrel slab core, wherein a magnetic field produced by the magnets attracts the cylinder bore liner of each barrel core feature toward the inner surface of the barrel slab core to militate against movement of the cylinder bore liner during assembly of the barrel slab core in a mold package.

18. The method according to claim 11 , wherein the cylinder bore liners are assembled into tooling for the barrel slab core and the barrel core features of the barrel slab core are formed within the cylinder bore liners.

19. A method of assembling a mold package, the method comprising the steps of:

providing a barrel slab core having an inner surface, an outer surface, and a plurality of barrel core features extending outwardly from the inner surface;

positioning a cylinder bore liner on each of the barrel core features of the barrel slab core;

providing a handling fixture adapted to be releasably connected to the barrel slab core;

providing a plurality of magnets disposed on the handling fixture; and

positioning one of the magnets adjacent each of the barrel core features of the barrel slab core, wherein a magnetic field produced by the magnets attracts the cylinder bore liner of each barrel core feature toward the inner surface of the barrel slab core to militate against movement of the cylinder bore liner during assembly of the barrel slab core in a mold package.

20. The method according to claim 19 , further comprising the step of positioning the at least one magnet in an aperture formed in the outer surface of the barrel slab core.

Assignments (11)