Have questions

I had some of these made for me. I want to reproduce them to the best
of my ability. Curious as to how these were pressed out or what I
could use or purchase to duplicate these. I know it started as a piece
of rectangle aluminum and were pressed to form. Then, a square hole
was punched in the middle. Any ideas on the process here? I have a
small garage shop and cant go purchase some thousand dollar machine. I
searched on the web some and saw these things called "fly presses"
that use a weighted wheel and a long threaded shaft that create heavy
downward force.
Pics at
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Reply to
Mike Hardy
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What's the thickness of the stock? Overall size of the part?
If you are talking about a press with a motor driven flywheel, large screw from the crankshaft to adjust ram height etc. be very careful, most of the older ones don't have a hydraulic overload system. Bad things can happen in a hurry with the ram height set too low and no overload.
Jim Kovar Vulcan, Mi
Reply to
Jim
How I would do this depends a lot on how many I needed. If I just needed a few I'd make up a male/female die setup for my bench vise wherein I put the aluminum rectangle in, crank in the vise, crank out the vise and remove the part, etc. To punch a square hole in aluminum doesn't take that much force. You can make or buy a square punch in the size you need and fix it to the end of a ram on a cheap arbor press and you can make up a fitting to hold the die on the table of the arbor press.
This piece looks eminently suitable for high speed production. But I doubt you want to make a million of them.
Grant
Mike Hardy wrote:
Reply to
Karen Story
If you wanted a million the price would be $1000 for the tooling, a few cents for the press operation, and the cost of the material.
Karen Story wrote:
Reply to
RoyJ
The part is 1.5 X 1.75 inches and about .10 inches thick. Thinking of going with aluminum about .06 or .05 on thickness. The .10 is really thicker than I need.
Reply to
Mike Hardy
No Jim he means one of these:
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Andrew Mawson
Reply to
Andrew Mawson
Ah! That clears it up. Thanks, Andrew!
Reply to
Jim

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