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How to Weld Keys

Welding keys that are damaged is not a difficult task, but you must know how to use brazing equipment. Keys are made out of brass because it is a soft metal that is easy for key-smiths to cut. To weld keys, you must braze them using an oxygen-acetylene welder with a flux-coated brazing rod.

Things You'll Need

Welding gloves
Welding goggles
Welding jacket
Grinder
Oxygen-acetylene welder
Brazing rods
Flux

Instructions

- 1
  Clean the metal free from any debris on your keys using your grinder. You want to expose the metal to ensure a strong weld.
- 2
  Place the two pieces of metal 1/16-inch apart and in the position that they need to be welded in.
- 3
  Coat a welding rod in flux and set it aside.
- 4
  Hold your torch in your dominant hand and heat the keys with your torch until they are red hot. Do not melt them.
- 5
  Hold your flux-coated welding rod in your non-dominant hand. Heat it up with the torch and drip the rod into the gap between the keys. Let the key cool before use.

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