Old 06-25-2009, 03:49 PM #1
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Default Steel as heatsink

Ok, I just found out this shop that does steel machining in my area, and I was wondering if mild steel is ok as a heatsink for LDs.

I know ideally, it should be copper or aluminium, but does anybody have experience with mild steel, steel, or iron?

I was intending to make a one-piece steel laser host.


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Old 06-25-2009, 03:51 PM #2
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Default Re: Steel as heatsink

Thermal conductivity - Wikipedia, the free encyclopedia
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Old 06-25-2009, 03:53 PM #3
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Default Re: Steel as heatsink

Steel will hold in the heat longer then it will disperse it. Bad idea.
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Old 06-25-2009, 04:48 PM #4
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Default Re: Steel as heatsink

Better than no Heat Sink at all... but not recommended....
(plus it rusts)....

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Old 06-25-2009, 04:50 PM #5
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Default Re: Steel as heatsink

Ok. Thanks for the replies! I guess I'll get aluminium then. Copper seems hard to come by unless they are in the form of pipes...
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Old 06-25-2009, 06:14 PM #6
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Default Re: Steel as heatsink

speedymetals.com - any size order, grat prices, fast shipping AND they'll do custom cuts for you ...
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Old 06-26-2009, 01:12 AM #7
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Default Re: Steel as heatsink

Wow... ok. I didn't know such a site existed. But I don't see them doing custom cuts. They sure have alot of raw sizes though.
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Old 06-26-2009, 03:42 AM #8
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Default Re: Steel as heatsink

Yes, they do custom cuts. Good Luck. Seems like at your location you could almost get it done in China as well, but I realize that is easier said than done.
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