Reminds me somewhat of a process called stitching for cracked cylinder heads. I've had it done and it works.
They drill a hole in the end of the crack and tap it. Then thread a threaded rod into it. Then they drill another hole and tap it, this one partially overlapping the previous one..and so on and so forth until the entire crack gas beed treated..last step is the top surface is ground..been used for years..
Keith
