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  1. shinjukus

    Machining Void in Blind hole

    Thanks, Mike. The reason that the customer is involved, due to bad yield at the supplier who is unable to feed the pipeline. Usually the quality guy is tasked to go to the supplier to understand the problem. So, i came to this forum to seek your experiences and expertise to see if the supplier...
  2. shinjukus

    Machining Void in Blind hole

    Hi guys, Thanks for the quick reply. Here are more details: 1) What are some sizes? The random void size can varies from 5mmL x 2~3mm W and it is usually shape like a snake. This appears on the vertical wall of the blind hole. It looks like a casting porosity but it is not. 2) What is the L/D...
  3. shinjukus

    Machining Void in Blind hole

    Hi Guys, I have a product which is a honeycomb shape with lots of round blind holes. The quality issue that I am facing right now is that I am seeing void (some can be as big as 5mm long and 2mm wide) on the vertical side wall of a random blind hole. I did a search and found that to reduce...

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