Posted By Mick G on 24 Sep 2020 11:01 PM
I kind of think it would be fun to try it out. You would need a steady hand, but you could use the bottom of the "Milkmaid" font to measure against as it is really quote a straight feature. If a guy had access to a milling machine with a table and "x" axis stroke at least as long as the width of the sign, you could dial it in and do a deadly straight cut.
I would rough cut it first by hand, then use a 2 flute carbide end mill to clean up along the entire length. The glass frit would dull the end mill quickly, but only along the one area of cutter, and it would likely just turn to dust as you cut along. Of course the risk is there that it would chip, but I don’t think so, as long as you set the feed at .001/.002 chip per tooth and kept the SFM down.
A quick deburr with a carbide burr and you would be good to go. Then off to the back side for some light spot welds (Careful not to overheat) do in small increments and let cool in between tacks.
..............Next Monday we will be starting a new WEEKLY feature, hosted and posted by our very own Mick G
Titled ...... " Practical Metallurgy and its application to welding, including procedures of ' flute carbide end milling ' and ' deburring ' " it will be an indispensable aid to all aspects of Collecting old bits of Advertising !!
lummox
Admin ... Thank you Mick, looking forward to your efforts, much appreciated by all I'm sure