Weld

You choose two objects within range that must remain within range for the duration of the casting of this spell. For the duration of this spell, harmless sparks of electricity bind the objects to one another. If you concentrate on the spell for its full duration, the objects bound together physically fuse at the points where they connect and can no longer be separated.

(For clarity's sake, during the concentration of the spell, something like dispel magic will cause the items to come apart. After the duration is finished, dispel magic would not be able to separate the objects, but mundane means such as hitting the object with a hammer would)