-
Thanks for all the advice guys. I'm cutting 40mm bullet casings. Been at it for the past month and these suckers are TOUGH!!!. I've gotten a chop saw used a diamond tipped blade with it. The aluminum would melt to the blade, so I sent the blade back. Next the chop saw when out. I upgraded to a vertical band saw which is better but with the set up I have now. There is movement on the material when I cut it so now I've gone through 3 blades. 2 came from the guy a bought the bandsaw from and the last one I just bought two days ago. All the blades are Lenox and they are good blades I believe it's the vibrations towards the end of the cut that are causing the breakage. I'll upload the picture of my set up. If you have any suggestions plz let me know about stopping the vibrations or a better holder for the cartridges. Thanks
-
Photos!! We need photos! Of your sawing setup.
I assume you are talking about cutting the cartridge cases, which sound like they are aluminum...not actually the bullets, which probably are not cased in aluminum?
It sounds like you are cutting the cartridges apart to separate the two alloys of aluminum? Which way are you cutting the case? I'm guessing in half the "hard" way?
You need at least two teeth in the cut to avoid vibration and damage to the teeth. To keep the aluminum from sticking to the blade, you need to run a coolant...if I'm not mistaken you can use something like varsol.
If you are using a vertical bandsaw, is designed as a wood cutting bandsaw or a metal cutting saw? The actual band speed is important for what you are cutting.
A few photos might help us make a few more detailed suggestions.
Jon.
