A deviation of the glass surface from a true plane.
A decorative accesory for women's footwear, sometimes on the vamp or sometimes at the ends of the laces.
Longitudinal curvature of rod, bar, shapes, and tube. Bow is measured after allowing the weight of the extrusion to minimize the deviation. Bow can be caused by a non-uniform extrusion rate across the cross section resulting in one portion of the extrusion being longer than the other or non-uniform contraction during quenching.
A conditional longitudinal curvature in pultruded parts.
Concavity, curvature, or deformation of the wafer centerline independent of any thickness variation present. learn more.
of a semiconductor wafer, the deviation of the center point of the median surface of a free, unclamped wafer from a median-surface reference plane established by three points equally spaced on a circle with diameter a specified amount less than the nominal diameter of the wafer. Contrast flatness. Also see warp.
The deviation from flatness along the length of the panel.
A measure of the convex curvature of a wafer, not desirable.
The distortion in a board that deviates from flatness within the length of the board (board shaped like the bow of a bow & arrow).
A shaft condition such that the geometric centerline of the shaft is not straight.
Distortion of a piece of lumber in which there is a deviation in a direction perpendicular to the flat face from a straight line end to end of the piece.
A lumber defect referring to deviation from a straight line drawn end to end along the wide face of a piece of lumber.
A deviation flat wise from a straight line drawn from end to end of a piece. It is measured at the point of greatest distance from the straight line.
a measure of concave or convex deformation of the median surface of a wafer, independent of any thickness variation which may be present. Bow is determined at the center point of the wafer with respect to a reference plane determined by three points equally spaced on a circle whose diameter is 6.35 mm less than the nominal wafer diameter. Bow is a bulk property of the wafer, not a property of an exposed surface. Generally, bow is determined with the wafer in a free, unclamped position. (Not to be confused with warp.)
A curvature in the longitudinal direction of a board causing the wide face to move away from a flat plane.
Distortion of lumber in which there is deviation along an edge, in a direction perpendicular to the flat face of the board, from a straight line from end-to-end of the piece.
This term is not recommended. Use instead the term “Edgewise Curvature”.
A form of warp that is in excess of one-fourth inch in the plane of the door itself. The measurement is taken from the widest point of a straight line from end to end of the door.
Related Article A defective piece of lumber that has warped along its length.
The distortion of lumber in which there is a deviation , in a direction perpendicular to the flat face, from a straight line from end to end of a piece.
A specific type of warping. Plank or strip has a curvature from end to end, flatwise. Specific types of bowing are horns up (the ends of the strip or plank are pointing upward or sometimes called end lift) and horns down (the ends of the strip or plank are pointing downward.)
A form of warp, bow describes a deviation flatwise from a straight line drawn from end to end of a board. If the board is laid flat, its shape starts to form a U.
Warping of a board or plywood panel so that it is bent and not flat.
Deviation from flatness of a board characterized by a roughly cylindrical or spherical curvature such that, if the board is rectangular, its four corners are in the same plane.