Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Mechanical Heatsink warpage

  1. Apr 7, 2014 #1

    I need advise on a heatsink warpage(see attached), the heatsink is deflected in the middle about 2mm off, i need to mount pcb on it and might cause cracking over time, I was wondering if any experienced engineers have a good approach to straighten it?


    Attached Files:

  2. jcsd
  3. Apr 7, 2014 #2


    User Avatar

    Staff: Mentor

    Welcome to the PF. Can you just buy a new one? How did it get warped?
  4. Apr 7, 2014 #3
    Hi Berkeman,
    I am buying from OEM , due to certain mass fabrication process limitation(improper cooling or uneven heating from them), a little warping is inevitable. Is there anyway i can add a secondary operation to straighten it out? i thought of machining it to be flat however the fins would be extremely difficult and not worth the cost.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook