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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


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    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.
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