ASTM B571 Test Guide: Peel Testing for Metals
PeelGrind the chisel edge to the exact specified angle and sharpen regularly to maintain uniform shear force application.
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Grind the chisel edge to the exact specified angle and sharpen regularly to maintain uniform shear force application.
Always roll the tape onto the steel plate with a standardized mechanical roller at a uniform speed to eliminate manual…
Inspect your cutting die under magnification frequently; even microscopic nicks on the blade cause severe, low-biased tear outliers.
Align the pre-cut tongue lines perfectly parallel with the grip edges to ensure the tearing vector propagates straight down the…
Clean the stainless steel probe tip with reagent-grade toluene or isopropyl alcohol and a lint-free wipe before every single stroke.
Meticulously clean the stainless steel test plate with diacetone alcohol or n-heptane and a lint-free wipe before every single strip…
Meticulously document the exact failure mode split: R (Rubber Failure), RC (Rubber-Cement), CP (Cement-Primer), or M (Metal Interface).
Align the marked trapezoid boundary lines perfectly flush with the interior edges of both the upper and lower grip faces…
Ensure the 15mm starter slit is cut perfectly perpendicular to the specimen edge using a razor blade; any slant will…
Always verify the cutting die blades under magnification regularly; a single micro-nick on the blade face creates invalid, low-value specimen…
Draw a continuous chalk or ink reference line around the external perimeter of the clamping ring before testing to immediately…
Always discard the first 25mm of peeling data from calculations; adhesive failure must reach steady-state equilibrium before capturing valid averages.