Veneer, sliced

Figure 11.10. Veneer slicing (Lutz, 1974). Methods of breaking logs into flitches, and slicing strategies. Many species are flat or quarter sliced, the choice being determined by the log in hand and market demand. The wide dark bands represent the backboard left in the sheer after the veneer has been cut. Where a flitch is cut from pith-to-cambium the veneer is described as back-cut. It is used where the heartwood is narrow and highly prized, e.g. rosewood.

Plywood is a panel made from wood veneers (thin slices or sheets) bonded to one another. Generally each ply is oriented at right angles to the adjacent ply, and the two face plies should have the grain direction parallel to each other. Thus most plywood will have an uneven number of plies, such as 3, 5, 7, or more. An exception to this is a four-ply construction in which the two core plies are oriented parallel to one another and perpendicular to the two face plies. 

Fig. 1. The hardwood plywood process using sliced decorative veneers.

In many ways, plywood manufacturing achieves a more complete utilization of the log than does lumber manufacturing. No sawdust results from rotary cutting or slicing of veneer. Valuable woods can be used as face veneers and less valuable woods for the inner plies. Plywood manufacturing makes for a more efficient utilization of specific species. Low... 

Preliminary investigations suggest that wood slicing with knives can be applied successfully to ammonia plasticized wood and that thicker boards and veneers can be cut than by conventional methods. Savings of material and energy are envisioned over the use of sawing (62). 

Log Conditioning. Veneer and plywood plants in the United States use either steam vats or hot water vats to condition logs preparatory to peeling or slicing. Steam vats are the more common nationally, but both types are employed extensively in the South and Southeast. 

Lutz JF (1971) Wood and log characteristics affecting veneer production. USDA, Forest Service, Forest Products Laboratory, Research Paper FPL 150 Lutz JF (1974) Techniques for peeling, slicing, and drying veneer. USDA, Forest Service, Forest Products Laboratory, Research Paper FPL 228 Macarthur RS (1952) The influence of initial stand density on growth, increment and timber quality of Pinus radiata. Internal report of the Forest Research Institute, Rotorua, New Zealand... 

Veneer- Extremely thin sheets of wood. Also a thin slice of wood or brick or stone covering a framed wall. 

The pressing pressure was supplied by the hydraulic cylinders of the test machine which was adjusted according to the viscosity of the adhesive. The bipartite beams were removed from the machine after two days because it was needed to manufacture more specimens. In order to ensure a full curing and hardening of the adhesive, the pressure was maintained by fixing the bottom member to the top member with screws which were removed after three weeks (Fig. 32). The vertical edges of the beams were sliced off to remove the veneer which was used to ensure the adhesive thickness. The bipartite beams were planed to a final width of 1(X) mm before the bending tests. 

Skiving skiv-ipi vf skived skiving [prob. of Scand origin akin to ON skifa to slice] (ca. 1825) Slicing off a thin layer. Skiving is the method by which veneers are cut from logs and by which polytetrafluoroethylene film is produced from cylindrical bars of ram-extruded or sinter-molded resin. PTFE film is made in this way because, unlike most thermoplastics, it cannot be directly extruded into film. 

The interior decorators of King Tuts tomb used ebony and ivory veneer. So did the builders in the French Renaissance court of King Louis XIV, who used exotics and burl wood to make intricate veneer patterns called marquetry. Today Ikea continues this great tradition, as veneer is widely used in commercial furniture to stretch the use of valuable hardwoods. Done right, veneer—a thin slice of wood applied to another piece of wood as decoration—can greatly enhance a project. Here you ll apply the technique to create a chessboard. 

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