Coupons?
by Bill A
(Indina)
Why do they call a weld test coupon, a coupon?
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that one really threw me a curve too when i was learning to weld. especially in the south where the emphasis is on the first syllable.
dictionary.com has this to say..
Coupon in Metallurgy ... a sample of metal or metalwork submitted to a customer or testing agency for approval.
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