I'll respectfully and completely disagree.
Properly brazed tools are extremely durable and are the industry standard for carbide faced impact tools. Every job I carve in stone is produced with carbide tipped steel shank chisels. This includes bushing tools (commonly called 4 points or 9 points) that are used perpendicularly against the face of the work to pulverize away material. That's far more brutal circumstances than moving relatively thin metal against much less resistance.
Properly built tools will not fail at the brazed joint. The end (carbide or otherwise) may fracture- usually from becoming too thin or from improperly applying an edge of the tool instead of the properly central face- or the tool shank may fail- usually because of poor quality steel, inadequate dimension and/or improper heat treatment.
imho it's a lot easier to braze (ribbon silver solder or whatever high nickel rod I have, can't remember) a special tool, especially if I then need to heat treat the tool. any thin cross section chisel shank will suffer injury or failure more quickly if subjected to high temps of welding and then not properly treated. Even properly tempered tools can break if you bind them. One of my air biggest air hammers (jib mounted surfacing machine) will easily and quickly break a perfectly good 1" diameter tool steel shank if you bind it. very exciting.... Pretty sure that one will flow form heavy plate but haven't gotten that far yet..
For nearly 20 yrs I have made, worn out and remade thousands of carbide tipped impact tools. They only fail when I misuse them or when I did a poor job making one (Metallica was probably on the radio when I was building that one...). The few flow forming tools I made up with steel ends attached to old short machine chisel shanks- much quicker to braze one up than to forge one and no lathe here yet- are just as dependable...
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