Dial in SMAW amperage with a test coupon

Set amperage for a 1/8 inch low-hydrogen electrode on a flat fillet practice coupon without using the production part as the test. PDCA parameter setup: plan from the allowed range, run a short coupon, check bead evidence, then adjust one step. The common shortcut is welding the part at whatever setting the machine had last, then chasing undercut, sticking, or a cold bead after the damage is already on the work. Plan Start inside the electrode or WPS range, not at the previous user's setting. Choose a middle value if the joint and position are ordinary. A defensible baseline prevents…

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