Last edited by JoJot
Tuesday, December 1, 2020 | History

3 edition of Lumber values from computerized simulation of hardwood log sawing. found in the catalog.

Lumber values from computerized simulation of hardwood log sawing.

Lumber values from computerized simulation of hardwood log sawing.

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  • 10 Currently reading

Published by U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory in [Madison, Wis.] .
Written in English

    Subjects:
  • Computer simulation,
  • Lumber -- Mathematical models,
  • Sawing -- Mathematical models

  • Edition Notes

    SeriesResearch paper FPL -- 356.
    ContributionsForest Products Laboratory (U.S.)
    The Physical Object
    Pagination28 p. :
    Number of Pages28
    ID Numbers
    Open LibraryOL17826700M
    OCLC/WorldCa6743376


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Lumber values from computerized simulation of hardwood log sawing. Download PDF EPUB FB2

Additional Physical Format: Online version: Lumber values from computerized simulation of hardwood log sawing. [Madison, Wis.]: U.S.

Dept. of Agriculture, Forest. Lumber yield and values were compared for the 5 types of sawing modelled by the program [see FPA 3, ].

Results indicated that all of the '4-sided' sawing methods gave similar lumber values. Live sawing was better than the 4-sided methods with good logs, but inferior for to inch-diam. logs with large defective cores. Live sawing followed by ripping produced the Cited by: Lumber values from computerized simulation of hardwood log sawing.

([Madison, Wis.]: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, ), by Forest Products Laboratory (U.S.) (page images at HathiTrust) A simulation-based approach for evaluating logging residue handling systems / (Portland, Or.

A 3D log sawing optimization system was developed to perform log generation, opening face determination, sawing simulation, and lumber grading using 3D modeling techniques. However, to accomplish this, a fast and accurate computerized means of grading lumber is required. Methods.

Lumber from the kiln-dried hardwood lumber database (Gatchell et al., ) supplied boards for the development and testing data samples.

The databank is composed of boards graded to FAS, F1F, Selects, 1 Common, 2A Common, and 3A Cited by: 2. The wood resource: in terms of its quality, log supply and predicted log size. The species — whether old-growth, second-growth or plantation whether managed or not, and if managed the silvicultural treatments that have been applied to the forest resource, its age and condition — are factors which determine the grade of material likely to be cut, because they affect the log.

This paper presents the results of a sawing simulation study examining the effects of the rotational orientation of the log and the depth of the opening cut on the value of hardwood lumber.

Richards, et al., “Lumber Values from Computerized Simulation of Hardwood Log Sawing”, USDA, Forest Service, Forest Products Laboratory, Research Paper, FPLSteele, et al., “Increased lumber value from optimum orientation of internal defects with respect to sawing pattern in hardwood sawlogs”, Forest Products Journal, vol.

Four cutting orders, Furniture, Panel, USDA Easy, and USDA Tough were processed in the simulation. Processing of lumber from the conventional sawmill resulted in significantly higher furniture part yields: percent for Selects and percent for No 2A Common as compared to the yields derived from lumber manufactured at the short-log sawmill.

A simulation study was used to analyze the flow of products though a sawmill in order to determine where productivity improvements could be made. The sawmill analyzed is located in the interior of British Columbia, and processes a variety of species and products.

The mill was selected for this reason, as it was important to determine how a change in the process will Cited by: 2. Simulation of Hardwood Log Sawing - Free download as PDF File .pdf), Text File .txt) or read online for free. In the simulation of Richards et al. hardwood sawing yields of sawing low dimension logs (SED = 25 cm) by the cant sawing method start at %, while from logs with large diameters (SED = 71 cm) up to % rough green lumber can be : Philipp Schlotzhauer, Andriy Kovryga, Lukas Emmerich, Susanne Bollmus, Jan-Willem Van de Kuilen, Hol.

tion of log bucking and sawing strategies. Wood and Fiber Science. 23(2): ΠDetermination of optimal bucking and sawing policies is linked in a common model.

The core of this model is a linear program (LP) that selects stem bucking and log sawing policies to maximize profits given an input distribution of raw material. Product output is File Size: 1MB. Computerized training for the hardwood sawmill industry: The edging and trimmer trainer (version ).

General Technical Report SRS Hot Springs, Arkansas: USDA-Forest Service, Southern Research Station. Replicating sawmill sawing with TOPSAW using CT images of a full-length hardwood log. For. Prod. 48 (1): Google Scholar. Habermehl A, Ridder HW. Cited by: "The effect of curve sawing two-sided cants from small-diameter hardwood sawlogs on lumber and pallet part yields." Forest Products Journal 56 (10): 80.

Modification of the sawmill Woodroom #3, MacMillan Bloedel Ltd., at. Harmac became necessary because of its uneconomical operation. The key concept of the modification plan was to gain flexibility in serving seven overseas and U.S.A.

markets. Stochastic components of sawmilling and the high cost of reconstruction make investment decisions complex and risky. A new computer Cited by: 2. The Forest Service Taper-Tension Saw on which letters of Public Patent were grated encompasses a percent narrower saw kerf than is commonly used in the industry, and has The a high degree of sawing accuracy over a wide operational range.

adoption of this saw by the sawmilling industry could result in an annual increase in recovery of solid. The paper presents the automated on-line system for wood logs 3D geometry scanning. The system consists of 6 laser triangulation scanners and is able to scan full wood logs which can have the diameter ranging from mm to mm and the length up to mm.

The system was developed as a part of the BIOSTRATEG project aiming to optimize the cutting of logs in Author: Piotr Siekański, Krzysztof Magda, Krzysztof Malowany, Jan Rutkiewicz, Adam Styk, Jakub Krzesłowski.

The Online Books Page. Online Books by. Forest Products Laboratory (U.S.) A Wikipedia article about this author is available. Forest Products Laboratory (U.S.): Wood Handbook: Wood as an Engineering Material (centennial edition, ) (PDF files with commentary at Forest Products Laboratory) Help with reading books-- Report a bad link-- Suggest a new listing.

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Full text of "Proceedings: "maintaining an edge": a conference on the forest industry technology for the 's" See other formats. Highlight ID Title Strategic Program Area(s) Year Station; ID: In-Filling Reduces the Urban Forest to the Detriment of Humans and Wildlife Habitat.

The urban landscape, because of its developed infrastructure, has less ecological services than a forested rural landscape and any further erosi.

Information Technology and the Forest Sector Their key objective is to determine the best sawing pattern—or optimal breakdown—for the logs (primary breakdown) or to cut sawnwood to the best width and length and to saw or resaw cants and slabs into boards (secondary breakdown). In more than half the members of the U.S.

Hardwood. Impacts The combined value of lumber and log characteristic detection devices developed, if applied to total U.S. lumber production, would exceed $ billion. The new resin system will help wood composite industries reduce formaldehyde emissions, thereby helping to expand the use of low grade wood and wood residues ultimately resulting in job.

Fig. 1 Spruce log with marked areas of compression wood-CW and opposite wood-OW (left) and sawing pattern (right).

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