5. Conclusion

The crimping of metal cans is a mechanical operation designed to assemble the lid or base to the body of a can. The purpose of the crimp is to close the container after filling, and thus seal the can to prevent subsequent recontamination, particularly microbiological recontamination.

Set-up operations on crimping machines require experience on the part of the setting operators, taking into account the specific features of crimping machines and cans.

Analysis of the dimensional conformity of seams requires :

• in-depth knowledge of the techniques used ;

• metrologically tested equipment for accurate measurements;

• a judicious choice of criteria and their dimensional limits.

As crimping control...