Sheet Metal Notchers from Jorgenson Are a Notch Above the Rest
Notches. A lot of parts call out for a notch or two, and you have to be able to handle these operations with speed and accuracy. Generally speaking, if you’re in the fabrication business then you have probably made a notch somewhere along the way. Let’s say you didn’t have a dedicated notcher in your arsenal at the time, how did you make that notch?
There’s more than a couple ways to make a notch, and none of those methods come close to the speed and accuracy of making that notch with a dedicated notching machine. Let’s examine a couple of the most probable methods out there, to see how they stand up to notching the right way. (By the way, do these other methods know what they’re up against? With a notching machine, you place the part into the jig, flip the clamps, hit the “go” button, hear a muffled sound from the machine, pull out your part because it’s done.)
So anyway, let’s examine milling the notch with, say, a roughing end mill on a decent Bridgeport style knee mill. Again, this time the piece must be securely clamped to the table in a fixture that holds the entire part. Then you chuck up, say, a ½” roughing end mill, check the speed chart for the correct rotational speed. If you don’t have an automatic CNC controlled Bridgeport machine then you manually maneuver the mill to the piece. (If, by chance, you do have a CNC controlled Bridgeport machine, guess what? You’re gonna run it manually anyway, because it would take longer to program the notch, than to just run it manually.)
That’s milling, what’s the second most popular way to create a notch without a notcher? It’s trying to drill a half of a hole. You get this one right, or it blows up the twist drill trying to cut through only a half a circle of sheet metal. After that nightmare, you still probably need to clean up the semi-circle with a hand grinder anyway.
Both methods are time-consuming and we’re comparing these to a notcher? Folks, a notcher, a hydraulically powered sheet metal notcher with high-speed steel blades — you press the pedal and your part is done!