Feature: Quality testing
Because potential defects can occur in different layers, more advanced equipment is required to inspect them simultaneously
quality assurance testing. We may also use SAM testing to investigate why a particular part failed.” Contracting SAM services can also be a better match for
one-time projects. “The customer’s project may be finite. They may only need
to scan 10,000 parts, and then the project is done. It is much more cost-effective to outsource the work in this case,” said Logan. “Convenience is a big factor, too. It is just simpler to give parts to a trusted partner to evaluate. Our customers often give us a part to analyse when they can’t isolate the issue, and ask us to use our expertise to determine the problem for them.”
Problem solving Newark, US-based California Brazing uses SAM testing to validate and verify processes required by its customers and to comply with American Welding Society specifications for brazing materials such as aluminum, stainless steel and copper. Metals are joined together in the brazing process by melting and flowing a filler material into a joint without melting the workpieces. “Brazing specifications define accepted quality requirements
for analysing internal discontinuities using non-destructive testing,” said Jeff Ager, General Manager of California Brazing. “In our experience, ultrasound [SAM] gives us the highest
Figure 2: PVA TePla SAM capabilities provide superior testing to manufacturers looking to outsource
www.electronicsworld.co.uk March 2022 37
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