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ecdez
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A few weeks ago a local guy gave me a stack of about 20 pieces of 1" thick steel flat bar and needed a 7/8" hole drilled on each end and the end rounded over so I set it up and used progressive drill sizes to get me to 1/2" than used and end mill to bring the hole to size and then shape the perimeter of each end. Didn't think much else of it but today he gave me 20 more so this looks like it's going to be a regular thing. My problem is the tool changes for the drilling operation takes too much hands on time (CNC mill without a tool changer) and I'd like to find a better solution. Was thinking an annular cutter for the hole and then an end mill to get the hole to final size and shape the end and that brings it down to one tool change. I was thinking about the drill/mill tools which would get me down to no tool changes but I've never used one. Anyone have experience with these?
Any better ideas on how to accomplish this seemingly simple task that I've overblown as usual?
It's 1" x 2" hot rolled flat bar with a 7/8" (just over actually) hole and a 2" diameter half circle milled into the end.
Drill/Mill in question would be this one or similar that would accomplish the same.
https://www.mcmaster.com/#2957a17/=1b3o0yk
Any better ideas on how to accomplish this seemingly simple task that I've overblown as usual?
It's 1" x 2" hot rolled flat bar with a 7/8" (just over actually) hole and a 2" diameter half circle milled into the end.
Drill/Mill in question would be this one or similar that would accomplish the same.
https://www.mcmaster.com/#2957a17/=1b3o0yk