I recommend you stay away from ordinary welding and TIG welding, etc. Those cause too much heat and the metal loses temper. The interface between the bronze and the filler material, and where the temper has been changed making the material more brittle, can lead to repairs of limited lifespan.

You want the services of Jake Winebrenner who has experience on cymbals using laser microfusion. He repaired an 18" Old K (Hartrick Type IVa) for me a few years back:

[img]http://black.net.nz/cym2015/microwelds.jpg[/img]

I've got a link to a video of him working, other photos of repairs on the bow of cymbals he's done, and contact details if needed. Costs about $40 from memory, but it depends on the complexity of the job.

Here's an example of a larger fissure in a cymbal bow repaired by Jake

[img]http://black.net.nz/cym2015/old-k-repair.jpg[/img]

and the video interview

[ame="https://www.youtube.com/watch?v=OudXMXpfhWc"]Fusion welding cymbal repair w Jake Winebrenner - YouTube[/ame]

Once again, the amazing Steve! Thank you ~

Has anyone ever seen a bell hole crack get bigger until the entire bell just cracks in two? No! That's because those cracks really don't spread much further than that. Edge cracks or radial type cracks are the ones that can kill cymbals. I can live with bell hole cracks.