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13 records – page 1 of 2.

Caractérisation du trait de scie permettant le collage sur chant du bois franc : rapport d'étape

https://library.fpinnovations.ca/en/permalink/fpipub42292
Author
Tremblay, Carl
Date
July 2004
Material Type
Research report
Field
Sustainable Construction
Author
Tremblay, Carl
Date
July 2004
Material Type
Research report
Physical Description
8 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Kerf
Sawing
Panels
Joints
Series Number
General Revenue 4024
Location
Sainte-Foy, Québec
Language
French
Abstract
Des visites industrielles auprès des producteurs et des utilisateurs de panneaux collés sur chant ont été effectuées afin de définir ce qu’est un collage sur chant de qualité pour les produits d’apparence. Cette enquête répondait ainsi au premier objectif spécifique du projet. Lors des visites, des panneaux collés avec joints de bonne et de mauvaise qualité ont été recueillis pour examen au laboratoire de Forintek. Des mesures effectuées au microscope ont permis d’établir à 0.05 mm la valeur maximale acceptable de largeur du joint de colle d’un panneau. Les principales causes de joints problématiques propres à l’opération de délignage des bandes sont l’éclatement des fibres du bois sur l’arête, la trop grande rugosité de la surface sur chant et la mauvaise rectitude du trait de scie. La proportion de panneaux rejetés reliés à ces causes varie de 0.5 à 3 %. Les fentes en bouts et les joints ouverts aux extrémités dus à un retrait en largeur des bandes de bois suite à un séchage sont responsables d’une plus grande proportion de rejets de panneaux. La plupart des usines visitées utilisent une scie à refendre à lame unique pour le délignage de bandes de largeur variable. Les modèles de déligneuse Mattison 202 et 404 sont utilisés dans la majorité des cas. Toutefois, certaines usines utilisent des modèles à scies multiples. Suite au délignage, la qualité du trait de scie est vérifiée de façon visuelle seulement. La présence de la pointe de diamant sur chant est utilisée comme indice de qualité collage. La seconde année du projet portera sur l’identification et le développement de méthodes d’évaluation des paramètres affectant la qualité collage.
Sawing - Kerf
Panels - Joints, Glued
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Coupe partielle mécanisée dans un peuplement feuillu tolérant en Nouvelle-Écosse

https://library.fpinnovations.ca/en/permalink/fpipub36435
Author
Meek, Philippe
Date
May 1995
Material Type
Research report
Field
Fibre Supply
Author
Meek, Philippe
Date
May 1995
Material Type
Research report
Physical Description
2 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Trees
Timberjack
Felling head
Saws
Sawing
Productivity
Feller
Series Number
Communiqué technique ; Coupe partielle-CT-000003
Language
French
Abstract
Coupe partielle
Coupe progressive
Feuillus
Productivité
Coûts
NOUVELLE-ÉCOSSE
ABATTEUSE GROUPEUSE TIMBCO T-435
TETE D'ABATTAGE A SCIE QUADCO
DÉBARDEUR A GRAPPIN TIMBERJACK 480C
DÉBARDEUR A GRAPPIN TREE FARMER C7D
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The effect of increasing bandmill speed on vibration and cutting accuracy. Part 2. Mill trials. (Final Report)

https://library.fpinnovations.ca/en/permalink/fpipub37376
Author
Taylor, J.
White, J.
Date
March 1995
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Taylor, J.
White, J.
Contributor
Science Council of British Columbia.
Date
March 1995
Material Type
Research report
Physical Description
37 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Band saws
Saw bands
Saws
Bands
Saw mills
Equipment
Sawing
Series Number
W-1200
Location
Vancouver, British Columbia
Language
English
Abstract
The global objective of the project is to investigate the feasibility of increasing bandmill production by proportionately increasing both the blade speed and the lumber feed speed. The objective of this phase of the project is to transfer the results of the laboratory experiments to the sawmill industry. The work described in this report covers the transfer of the technology to two sawmills. The first report has a more detailed introduction to the project and a review of the literature.
Saws - Band
Sawmills - Equipment
Sawing - Cutting speeds
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Mission to study wood machining technology in Japan : October 1-10, 1995

https://library.fpinnovations.ca/en/permalink/fpipub37391
Author
Lister, P.F.
Date
October 1995
Material Type
Research report
Field
Wood Manufacturing & Digitalization
knives and adjustable milling cutters. 1.0 INTRODUCTION Wood machining processes like sawing
Author
Lister, P.F.
Date
October 1995
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Saw mills
Sawing
Series Number
W-1259
Location
Vancouver, British Columbia
Language
English
Abstract
This paper describes observations made during a trip to Japan to study wood machining technology. Topics include highlights of the 12th International Wood Machining Seminar, the 32nd Nagoya International Woodworking Machinery Fair and several visits to Japanese companies. Wood machining technology in Japan (WP-OI 95.11) Copies available from Pacific Forest Centre, Canadian Forest Service, 506 West Burnside Road, Victoria, B.C. V8Z 1M5. Fax 604 363-0797.
Sawmills - Symposium - Japan
Cutting - Symposium - Japan
Sawing - Symposium - Japan
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Modele de simulation du sciage

https://library.fpinnovations.ca/en/permalink/fpipub41686
Author
Grondin, F.
Drouin, N.
Levesque, Y.
Cote, G.
Date
March 1995
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Grondin, F.
Drouin, N.
Levesque, Y.
Cote, G.
Date
March 1995
Material Type
Research report
Physical Description
18 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Simulation
Saws
Sawing
Series Number
E-2579
Location
Sainte-Foy, Québec
Language
French
Abstract
Simulation du Sciage
Modele
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Observations sur la tête d'abattage Gilbert à pleine inclinaison latérale

https://library.fpinnovations.ca/en/permalink/fpipub36431
Author
Plamondon, Jean A.
Date
April 1995
Material Type
Research report
Field
Fibre Supply
Author
Plamondon, Jean A.
Date
April 1995
Material Type
Research report
Physical Description
2 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Felling head
Saws
Sawing
Productivity
Feller
Series Number
Communiqué technique ; Abattage-CT-000024
Language
French
Abstract
Abattage
TETES D'ABATTAGE A SCIE
Productivité
TETE D'ABATTAGE GILBERT A PLEINE INCLINAISON
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Off-centre cutting in bandsaws

https://library.fpinnovations.ca/en/permalink/fpipub37392
Author
Taylor, J.
White, J.
Date
December 1995
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Taylor, J.
White, J.
Date
December 1995
Material Type
Research report
Physical Description
17 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Stresses
Band saws
Saw bands
Saws
Bands
Blades
Sawing
Series Number
W-1260
Location
Vancouver, British Columbia
Language
English
Abstract
Research into the cutting characteristics of bandsaws has shown that, in nearly every case studied, the average cutting path of the saw is biased to one side of the ideal cut path. This paper presents the results of a laboratory investigation into this off-centre cutting. The influences on the shape and cutting behaviour of bandsaws of such basic factors as bandmill strain, guides, guide alignment, and blade overhang, are measured. It is concluded that bandsaw blades are curved in the cutting region and angled slightly out of the cut. The curvature and angle of the blade are due to the interaction of the bandsaw with the bandmill wheels, in the presence of bandmill strain, overhang and wheel crown, and are relatively insensitive to bandmill strain or pressure guides. The curvature and angle of the blade in the cutting region are most likely the cause of the cutting bias.
Saws - Band
Sawing - Blades
Cutting - Stresses
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La production de copeaux et de billes de sciage en usines satellites dans l'est du Canada

https://library.fpinnovations.ca/en/permalink/fpipub40772
Author
Favreau, Jean
Date
December 1995
Material Type
Research report
Field
Fibre Supply
Author
Favreau, Jean
Date
December 1995
Material Type
Research report
Physical Description
30 p
Sector
Forest Operations
Field
Fibre Supply
Research Area
Transportation Infrastructure
Subject
Mill
Systems
Simulation
Saws
Sawing
Satellite
Operations
Canada
Analysis
Series Number
Rapport technique ; RT-000113
Language
French
Abstract
Le rapport présente les résultats à la productivité et à la qualité de produits pour six usines satellites étudiés dans l'est du Canada. Un modèle de coûts est aussi contenu dans le rapport. Le coût au mètre cube d'un système de récolte par arbres entiers comprenant une usine satellite capable de produire des copeaux et des billes de sciage est comparé à celui d'un système comprenant une ébrancheuse-écorceuse-déchiqueteuse et une façonneuse à la souche et produisant les copeaux et les billes de sciage en forêt. Le modèle inclut les coûts de production pour la récolte, le transport routier et l'usine satellite.
USINES DE PATE
OPÉRATIONS SATELLITES
Coûts
Déchiquetage
BILLES DE SCIAGE
MODELES ET SIMULATION
ANALYSE DE SYSTEME
Est du Canada
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Rapport de la rencontre des usagers d`Optitek : sawmill simulation model

https://library.fpinnovations.ca/en/permalink/fpipub41761
Author
Grondin, F.
Drouin, N.
Date
September 1995
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Grondin, F.
Drouin, N.
Date
September 1995
Material Type
Research report
Physical Description
44 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Simulation
Saws
Sawing
Optitek
Series Number
E-497
Location
Sainte-Foy, Québec
Language
French
Abstract
Optitek
Simulation
L'Industrie du Sciage
Documents
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Results from a test of bevelled tooth bandsaw blades

https://library.fpinnovations.ca/en/permalink/fpipub5515
Author
Lister, P.F.
Sykes, D.
Date
October 1995
Edition
37390
Material Type
Research report
Field
Wood Manufacturing & Digitalization
° alternate top bevel (ATB) tootii for handsaws. The test involved comparing the sawing variation and surface
Author
Lister, P.F.
Sykes, D.
Date
October 1995
Edition
37390
Material Type
Research report
Physical Description
8 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Saw tooth
Band saws
Saw bands
Saws
Bands
Blades
Sawing
Design
Series Number
W-1256
Location
Vancouver, British Columbia
Language
English
Abstract
This report describes the results of a mill test investigating the effect of a 15 degree alternate top bevel (ATB) tooth for bandsaws. The test involved comparing the sawing variation and surface roughness of Douglas-fir lumber cut by both ATB and standard saws. The test results showed no improvement in sawing accuracy with the ATB blades. In fact, as the blades became dull, the sawing accuracy of the ATB saws deteriorated faster than for the standard blades. Visual evaluation of surface roughness also indicated that the ATB saws produce slightly rougher lumber. However, this may be due to increased tooth bite associated with the ATB teeth. Further testing will be required to determine if the results of this test are truly representative of the performance of ATB bandsaws in general.
Saws - Band
Sawing - Blades
Saws - Tooth design
Documents
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13 records – page 1 of 2.