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aspearin1
Chemical
- Nov 5, 2002
- 391
I have some product failures I am evaluating. The product consists of ultrasonically welded plastic parts. The current release criteria for these parts is a manual "tug" on the parts to determine whether or not the weld is holding. Neeless to say, this practice is quite flawed, and I'm looking for a more automated approach. I am encouraged by some of what I see about ultrasonics for sensing these potential flaws. Does anyone have experience using ultrasonics to detect polymer weld flaws, voids or weaknesses? Does anyone have a preferred supplier of such devices, or interpreting software?
I see that pass-through detection (tranceiver and receiver on opposite sides of workpiece) as a common practice. My parts are rather low clearance, so I wonder if a reflectance or echo detection (transeiver and receiver on same side of work piece) will give me a useable signal. Again, please share your experiences if they apply.
Thanks in advance.
ChemE, M.E. EIT
"The only constant in life is change." -Bruce Lee
I see that pass-through detection (tranceiver and receiver on opposite sides of workpiece) as a common practice. My parts are rather low clearance, so I wonder if a reflectance or echo detection (transeiver and receiver on same side of work piece) will give me a useable signal. Again, please share your experiences if they apply.
Thanks in advance.
ChemE, M.E. EIT
"The only constant in life is change." -Bruce Lee