Brass Base?
- Thread starter how2
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kramer5150
Flashaholic
easily soldered. it also doesn't react with raw uncoated aluminum the way copper does.
SUPER easy to machine and debur, with very minimal tool wear.
SUPER easy to machine and debur, with very minimal tool wear.
Last edited:
csshih
Flashlight Enthusiast
power LEDs need heatsinking to survive. 
kramer5150
Flashaholic
If it's to draw away thre heat from the led then the thermal conductivity of Brass is very poor, compared to Aluminum
See http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html
Copper or silver would be better.
Is it to stop heat getting to the driver?
See http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html
Copper or silver would be better.
Is it to stop heat getting to the driver?
Brass is used because it's very easy to machine, and you can solder directly to it. It is not easy to get solid solder joints in Aluminum.
Also, drivers often need heatsinking themselves, especially in high power lights.
Also, drivers often need heatsinking themselves, especially in high power lights.
but it's thermal capacitance is much higher than aluminum for a given volume, making it a better choice. copper would have issues with galvanic corrosion.
MWClint
Enlightened
at heat levels we see in flashlights... brass is just fine.
ive got a few brass p7 lights and there's no issues with extended runtimes.
you cant solder to aluminum.
copper can cause galvanic corrosion.
silver is too expensive.
brass is the answer
ive got a few brass p7 lights and there's no issues with extended runtimes.
you cant solder to aluminum.
copper can cause galvanic corrosion.
silver is too expensive.
brass is the answer
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