warping

wood

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In wood: Shrinkage and swelling
…joints, change of cross-sectional shape, warping, checking (formation of cracks), case-hardening (release of stresses in resawing or other machining, with consequent warping), honeycombing (internal checking), and collapse (distortion of cells, causing a corrugated appearance of the surface of lumber). Thus, the fact that wood shrinks and swells constitutes a great…
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