Weld

This spell repairs a single break or tear in an object you touch, such as a broken chain link, two halves of a broken key, a torn cloak, or a leaking wineskin. As long as the break or tear is no larger than 1 foot in any dimension, you weld it,as long as you have the same material that you are welding it leaves no trace of the former damage.

This can also weld two items together as long as you have the same material that the item is made of. The material will fuse the items together and material will disappear as you are doing it. 

This spell can physically repair a magic item or construct, but the spell can't restore magic to such an object.

This spell is only available for Artificer.