Yes, soldering your wedding band to your engagement ring is a great option to optimise the lifespan of your rings as it prevents the rings rubbing together and causing wear. Having your rings soldered together will also keep the rings centred permanently, preventing rotation individually, so they look best when worn.
However, there are a few things to consider:
Make sure the designs of both rings are compatible for soldering. If they have intricate settings or designs, it might affect the outcome.
Ensure the jeweller confirms that both rings metal alloys are compatible metals to be soldered together.
Once soldered, resizing the rings can be more complicated. If you think you might need to resize in the future, it’s worth discussing with a jeweller.