I’ve got a thin sheet of aluminum (about 0.48mm) that I’d like to cut a simple shape out of.
I’ve got the
Soft Metals bit set from Inventables but not sure which bit to use or if there are any other special considerations.
Anything I should know or keep in mind before I start cutting?
I just used the two flute 1/8 end mill and standard settings from easel for my first cut in aluminum, work great made my first part and no problems. there is a search function for more information if you are wanting to do more that just a simple cut.
Cut fast and shallow. Like crazy shallow.
The aluminum you have is really thin so… 2? passes.
And make sure your clamping is good!
I did a quick test of using pocket strategy to do the profile cut in a unused space on the material.
I made a offset outline 40% of the bit diameter around my test object (bat symbol) and did a pocket cut with a 40% step over so it would do it in 2 passes. Cut at .39mm depth, 1016 mm/min, 18,000 rpm I wet with WD40 and vacuumed up chips
I did the pocket cut for the first 90% of the material, then switched to a traditional profile strategy with tabs for the remainder. I could not make tabs au…
The masking tape / CA glue method of hold down works very well on thin metal.
This is a must, as in something that keep the whole sheet down - otherwise it WILL lift.
I have cut 1mm alu sheet in one pass, worked fine for me. 2mm bit at 12ipm at full depth.