OK - I'm totally new to nondestructive testing so I'm looking for a starting point here.
Here's the situation - we've seen a significant increase in subsurface defects in half hard C36000 Brass rod. We've run across more inclusions during machining in the last two months than the owner has seen in 14 years.
To make matters worse, it's all of our suppliers. It's not narrowed down to a single supplier/heat/batch/whatever.
And some of our parts are for use in pretty high pressure applications.
None of our suppliers are being very supportive other than giving us our money back for the bad lots.
Needless to say we're terrified of the liability the failure of a high pressure valve could bring
So I've been tasked with researching testing alternatives -
Buy equipment? What kind?
Find a test lab?
Can you test machined brass parts for non-visible cracks, gaps, inclusions, etc?
TIA for any advice
Here's the situation - we've seen a significant increase in subsurface defects in half hard C36000 Brass rod. We've run across more inclusions during machining in the last two months than the owner has seen in 14 years.
To make matters worse, it's all of our suppliers. It's not narrowed down to a single supplier/heat/batch/whatever.
And some of our parts are for use in pretty high pressure applications.
None of our suppliers are being very supportive other than giving us our money back for the bad lots.
Needless to say we're terrified of the liability the failure of a high pressure valve could bring
So I've been tasked with researching testing alternatives -
Buy equipment? What kind?
Find a test lab?
Can you test machined brass parts for non-visible cracks, gaps, inclusions, etc?
TIA for any advice

