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    Author(s): D.B. Richards; W.K. Adkins; H. Hallock; E.H. Bulgrin
    Date: 1980
    Source: Res. Pap. FPL-356. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1980: 28 pages
    Publication Series: Research Paper (RP)
    Station: Forest Products Laboratory
    PDF: View PDF  (1.1 MB)

    Description

    Computer simulation sawing programs were used to study the sawing of mathematical models of hardwood logs by me live sawing and three 4-sided sawing methods. One of the 4-sided methods simulated "grade sawing" by sawing each successive board from the log face with the highest potential grade. Logs from 10 through 28 inches in diameter were sawn. In addition, a refinement in the live sawing called live rip, in which center-sawn boards are ripped to increase value, was studied. Results generally indicate that all of the 4-sided methods studied gave similar lumber values. Live sawing was better than the 4-sided methods with good logs but inferior for 10-and 12-inch logs with large detective cores. Live sawing followed by ripping produced the highest lumber values in almost all cases.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Richards, D.B.; Adkins, W.K.; Hallock, H.; Bulgrin, E.H. 1980. Lumber values from computerized simulation of hardwood log sawing. Res. Pap. FPL-356. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1980: 28 pages

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    Keywords

    Computer simulation, mathematical modeling, hardwood sawing, computer programs, quadrant sawing, cant sawing, live sawing, Decision sawing, grade sawing, grade yield

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