on, wrTich may be mechanically or chemically disturbed to such an extent that it is largely superseded by that of adhesion. The two terms have, when broadly considered, a highly con- trasting significance. In cohesion the molecules are bound together integrally by a power Which resists outside… … Welding, when efficiently done, gives rise to wholly cohesive properties ; but if it Ts of an inferior nature the opposing surfaces Fig. 1. — A space about 1/30 inch wide, magnified, showing are merely held together by a weak matrix, after the manner of parallel combinations of grains, due to…
Aeronautics -- Periodicals
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