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Rift Sawing
Rift sawing is a woodworking process that aims to produce lumber that is less vulnerable to distortion than flat-sawn lumber. Rift-sawing may be done strictly along a log's radials—perpendicular to the annular growth ring orientation or wood grain—or as part of the quarter sawing process. Process Leading to some confusion, the terms "rift sawing" and "quarter sawing" are interchanged between various sources. Radial cut ''Civil Engineering Materials'' describes rift-sawing as a process where boards are cut radially. Thus, the grain is always nearly parallel to the short edge of the board and thus nearly perpendicular to the long edge of the board. This produces stable boards with comparatively thin grain; least susceptible to warping, twisting, or cupping; and hence most valued for products where dimensional stability is critical (e.g. musical instruments, high-end sports equipment). This is similar to the process used to make wood shingles. The word ''rift'' derives f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lumber
Lumber is wood that has been processed into uniform and useful sizes (dimensional lumber), including beams and planks or boards. Lumber is mainly used for construction framing, as well as finishing (floors, wall panels, window frames). Lumber has many uses beyond home building. Lumber is referred to as timber in the United Kingdom, Australia, and New Zealand, while in other parts of the world, including the United States and Canada, the term ''timber'' refers specifically to unprocessed wood fiber, such as cut logs or standing trees that have yet to be cut. Lumber may be supplied either rough- sawn, or surfaced on one or more of its faces. ''Rough lumber'' is the raw material for furniture-making, and manufacture of other items requiring cutting and shaping. It is available in many species, including hardwoods and softwoods, such as white pine and red pine, because of their low cost. ''Finished lumber'' is supplied in standard sizes, mostly for the construction ind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flat Sawing
Flat sawing, flitch sawing or plain sawing is a woodworking process that produces flat-cut or plain-cut boards of lumber. Process After an initial cut through the diameter of a log, parallel cuts produce flitches: strips of lumber with consistent thickness. Two cuts on each flitch trim the bark from the sides, and reduces it to a standard board width with squared edges. Two more cuts at each end set the length. Lumber can be quickly flat-cut with a side-by-side set of mechanical saws. A slower but sturdier method involves passing the log back and forth over a single saw. To reduce buckling that may occur along the middle of flat-cut boards, the initial cut may be offset from the diameter, and resulting sections cut further before cutting the flitches. Comparison Flat-sawn wood often exhibits "flat-" or "slash grain", where the angle between the visible growth rings Dendrochronology (or tree-ring dating) is the scientific method of chronological dating, dating tree rings ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood Grain
Wood grain is the longitudinal arrangement of wood fibers or the pattern resulting from such an arrangement. It has various derived terms refer to different aspects of the fibers or patterns. Wood grain is important in woodworking and it impacts aesthetics. Definition and meanings Wood grain is the longitudinal arrangement of wood fibers or the pattern resulting from such an arrangement. R. Bruce Hoadley wrote that ''grain'' is a "confusingly versatile term" with numerous different uses, including the direction of the wood cells (e.g., ''straight grain'', ''spiral grain''), surface appearance or figure, growth-ring placement (e.g., ''vertical grain''), plane of the cut (e.g., ''end grain''), rate of growth (e.g., ''narrow grain''), and relative cell size (e.g., ''open grain'').Hoadley, R. Bruce. "Glossary." ''Understanding Wood: A Craftsman's Guide to Wood Technology''. Newtown, Conn.: Taunton, 1980. 265. Print. Physical aspects Grain in growing wood follows the grown fibres o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quarter Sawing
Quarter sawing or quartersawing is a woodworking process that produces quarter-sawn or quarter-cut boards in the rip cutting of logs into lumber. The resulting lumber can also be called ''radially-sawn'' or simply ''quartered''. There is widespread confusion between the terms Rift sawing, ''rift sawn'' and ''quarter sawn'' with the terms defined both with opposite meanings and as synonyms. Quarter-sawn boards have greater stability of form and size with less Wood warping, cupping (compared to flatsawn boards), shrinkage across the width, shake and splitting, and other good qualities. In some woods such as oak, the wood grain produces a decorative effect which shows a prominent ray fleck, while sapele is likely to produce a ribbon Figure (wood), figure. Description Quarter sawing is a process for rip cutting logs into lumber. It produces quarter-sawn or quarter-cut boards. The resulting lumber can also be called ''radially-sawn'' or simply ''quartered''. Wood cut in this way ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood Shingle
Wood shingles are thin, tapered pieces of wood primarily used to cover roof shingle, roofs and walls of buildings to protect them from the weather. Historically roof shingle, shingles, also known as shakes, were split from straight grained, knot free ''bolts'' of wood. Today shingles are mostly made by being cut which distinguishes them from shakes, which are made by being split out of a bolt. Wooden shingle roofs were prevalent in the North American colonies (for example in the Cape Cod (house), Cape-Cod-style house), while in central and southern Europe at the same time, thatch, slate and tile were the prevalent roofing materials. In rural Scandinavia, wood shingles were a common roofing material until the 1950s. Wood shingles are susceptible to fire and cost more than other types of shingle so they are not as common today as in the past. Distinctive shingle patterns exist in various regions created by the size, shape, and application method. Special treatments such as swep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rive
Rive or La Rive may refer to: Places * Rive, Piedmont, Italy * Rive d'Arcano, Friuli-Venezia Giulia, Italy * Rive Droite, Paris, France * Rive Gauche, Paris, France People * De la Rive, a surname and list of people * Joey Rive (July 8, 1963) American tennis player * Julie Rivé-King (1854-1937), American musician * Lyndon Rive, cofounder of Solar City and cousin of Elon Musk * Richard Rive (1931-1989), South African academic and writer * Robert Rive, 19th century photographer Other * La Rive, a restaurant in Amsterdam, Netherlands * La Rive Condominiums, Minneapolis, Minnesota, US * ''Rive'' (video game), a 2016 platforming shoot-em-up video game * Wood splitting, or riving See also * Longue-Rive, Quebec, Canada * Belle Rive (other) * Rives (other) * Rivière (other) * Ríos (other) * Rio (other) * Rivers (other) * River (other) A river is a flowing body of water. River may also refer to: Places ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AWI Lumber Cuts standard
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AWI or Awi may refer to: Awi *the Awi people, an ethnic group in Ethiopia * Awi, Iran, a village in Zanjan Province, Iran AWI * IATA airport code for Wainwright Airport (Alaska) * ICAO airline code for Air Wisconsin * Alfred Wegener Institute for Polar and Marine Research, Germany's major organization for Arctic, Antarctic and deep sea research * Animal Welfare Institute * Arab World Institute * Australian Watercolour Institute * American War of Independence * Axial Ward-Takahashi identity, used to calculate quark masses in lattice gauge theory * Approved Work Item is a status in the development of an ISO The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries. Me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Alba
''Quercus alba'', the white oak, is one of the preeminent hardwoods of eastern and central North America. It is a long-lived oak, native to eastern and central North America and found from Minnesota, Ontario, Quebec, and southern Maine south as far as northern Florida and eastern Texas. Specimens have been documented to be over 450 years old. Although called a white oak, it is very unusual to find an individual specimen with white bark; the usual colour is a light gray. The name comes from the colour of the finished wood. In the forest it can reach a magnificent height and in the open it develops into a massive broad-topped tree with large branches striking out at wide angles. Description ''Quercus alba'' typically reaches heights of at maturity, and its canopy can become quite massive as its lower branches are apt to extend far out laterally, parallel to the ground. Trees growing in a forest will become much taller than ones in an open area which develop to be short and mass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medullary Ray (botany)
Medullary rays, also known as vascular rays or pith rays, are cellular structures found in some species of wood. They appear as radial planar structures, perpendicular to the growth rings, which are visible to the naked eye. In a transverse section they appear as radiating lines from the centre of the log. In an axial section they may appear as a variety of transverse markings, depending on how close the section is to the plane of the ray. In a tangential section they may be hard to see at all. They are formed by the activity of vascular cambium. During the process of the division of cambium, the cambium cuts out cells on both the outer and inner side. These cells are parenchymatous. Most of these cells transform into xylem and phloem. But certain cells don't transform into xylem and phloem and remain as such. These cells cut out by the cambium towards the periphery are phloem parenchyma while those towards the pith are xylem parenchyma. Both of these cells together work as secon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperbola
In mathematics, a hyperbola is a type of smooth function, smooth plane curve, curve lying in a plane, defined by its geometric properties or by equations for which it is the solution set. A hyperbola has two pieces, called connected component (topology), connected components or branches, that are mirror images of each other and resemble two infinite bow (weapon), bows. The hyperbola is one of the three kinds of conic section, formed by the intersection of a plane (mathematics), plane and a double cone (geometry), cone. (The other conic sections are the parabola and the ellipse. A circle is a special case of an ellipse.) If the plane intersects both halves of the double cone but does not pass through the apex of the cones, then the conic is a hyperbola. Besides being a conic section, a hyperbola can arise as the locus (mathematics), locus of points whose difference of distances to two fixed focus (geometry), foci is constant, as a curve for each point of which the rays to two fix ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flat Sawing
Flat sawing, flitch sawing or plain sawing is a woodworking process that produces flat-cut or plain-cut boards of lumber. Process After an initial cut through the diameter of a log, parallel cuts produce flitches: strips of lumber with consistent thickness. Two cuts on each flitch trim the bark from the sides, and reduces it to a standard board width with squared edges. Two more cuts at each end set the length. Lumber can be quickly flat-cut with a side-by-side set of mechanical saws. A slower but sturdier method involves passing the log back and forth over a single saw. To reduce buckling that may occur along the middle of flat-cut boards, the initial cut may be offset from the diameter, and resulting sections cut further before cutting the flitches. Comparison Flat-sawn wood often exhibits "flat-" or "slash grain", where the angle between the visible growth rings Dendrochronology (or tree-ring dating) is the scientific method of chronological dating, dating tree rings ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quarter Sawing
Quarter sawing or quartersawing is a woodworking process that produces quarter-sawn or quarter-cut boards in the rip cutting of logs into lumber. The resulting lumber can also be called ''radially-sawn'' or simply ''quartered''. There is widespread confusion between the terms Rift sawing, ''rift sawn'' and ''quarter sawn'' with the terms defined both with opposite meanings and as synonyms. Quarter-sawn boards have greater stability of form and size with less Wood warping, cupping (compared to flatsawn boards), shrinkage across the width, shake and splitting, and other good qualities. In some woods such as oak, the wood grain produces a decorative effect which shows a prominent ray fleck, while sapele is likely to produce a ribbon Figure (wood), figure. Description Quarter sawing is a process for rip cutting logs into lumber. It produces quarter-sawn or quarter-cut boards. The resulting lumber can also be called ''radially-sawn'' or simply ''quartered''. Wood cut in this way ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
