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Thread: How to cut thick metals

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    How to cut thick metals

    I have an amp case that needs to be trimmed a tad so my via 800 and components will fit in. The problem is the amp case is a thick metal (i think aluminum) that i cant see to get sanded with my high speed dremel. I've tried with several bits and none seem to do much damage to the metal. Is there some thick metal dremel attachment i can find out there? If not what other kinda tool should i use to trim about 1/4 inch of this metal?

  2. #2
    FLAC sdashiki's Avatar
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    how thick is the aluminum? AL is very easy to cut, its so soft. Welding/soldering is another thing entirely.

    Do you have a pic or dimensions?

    Hacksaws work wonders
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    Quote Originally Posted by Sonicxtacy02
    Is there some thick metal dremel attachment i can find out there? If not what other kinda tool should i use to trim about 1/4 inch of this metal?
    Diamond cut off blade? I am SURE that there is one available for the dremmel.
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    I left the peice at home and i'm at work. I'll take a few pics when i get there. I'm not SURE its alluminum but its a shiny brushed metal material. i'll check for a diamond cut off blade.

  5. #5
    FLAC sdashiki's Avatar
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    If you cant cut it easily, its prolly not AL and more likely galvanized steel or something like that.

    Might even be stainless steel, in which case its even harder.

    Is it LIGHT for its size or HEAVY?
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    heavy

  7. #7
    FLAC sdashiki's Avatar
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    Well not to be rude, but common sense would tell you that AL is very light and steel is very heavy.

    its not AL. Depending on how thick it is, you might not be able to use ANY Dremel bit on it. Dremel is too week.

    Sounds like GALVANIZED STEEL.

    Without a pic I cant say anything definetly but you might end up needing a PLASMA CUTTER!

    hacksaw is best first attempt before trying dremel. only if its reely thick. If you can, try to find tin snips and use those.

    "Furthermore, and most importantly, DO NOT HEAT GALVANIZED STEEL! The zinc will evaporate, and zinc fumes are very harmful and can even be fatal. If using a Dremel or other powered method of cutting, make sure there is adequate ventilation. To clean galvanized steel, a rag, a touch of oil, and elbow grease are the best methods. Washing it will result in advanced rusting (even if heat-dried immediately), and rolling it in sand will remove the zinc coating. Darkened galvy cannot be restored to itís original color or luster."

    hope that helps a bit.
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  8. #8
    FLAC ukchris's Avatar
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    If the hacksaw doesn't make it try a carbide blade (Home Depot) in the hacksaw. I was able to cut 3/4" rebar with one without too much effort. They were with the other saw blades int he tool area.

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    ok thanks for your help. I'll upload a pic of it when i get home anyway just to be sure

  10. #10
    Low Bitrate
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    Hah.. Dremels are weak to begin with... You need to use an air die grinder.

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