AFRORMOSIA-ASSAMELA (Pericopsis elata)
Nom commercial
Afrormosia-Assamela
Nom scientifique (avec auteur)
Pericopsis elata Van Meeuv.
Famille
LEGUMINOSAE
Noms communs (pays)
Assamela (Côte d`Ivoire); Yellow satinwood; Satinwood; Redbark; Golden afrormosia; Devils tree; Bonsamdua; Bohalala; Benin satinwood; Ayin; Awawai; Assemela; Asamela; Oleo pardo (France); Bohala (Zaire); Mohole (Zaire); Assamela (France); Ole (Zaire); Obang (Central African Republic); Obang (Cameroon); Kokrodua (Ghana); Afrormosia
Synonymes du nom scientifique (avec auteurs)
Afrormosia elata Harms
DESCRIPTION DE L'ARBRE
Description botanique
The tree reaches a height of 50 m. The bole is somewhat irregular, clear to 30 to 32 m in length and buttressed to a height of 2.5 m and then fluted. The trunk diameter attains from 100 to 200 cm.
Habitat naturel
Pericopsis elata is a gregarious species, it grows in both wet and dry forests. CITES, Appendix II : The export of this species shall require the prior grant and presentation of an export permit. It is known or inferred that the harvesting of specimens fr
Répartition naturelle
West Africa, mainly in Ghana and Cote d`Ivoire.
IDENTIFICATION DU BOIS
Description anatomique du bois
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 100 to 150 micras (small). Vestured pits. Vessels per mm2 10 to 20 (abundant). Simple perforation plates. Vessel-ray pits similar to intervessel pits Occasionally axial parenchyma confluent. Axial parenchyma confluent unilateral paratracheal. Axial parenchyma storied. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 3 to 4 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays storied. Rays 1 to 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Non-septate fibers. Fibers with simple to minutely bordered pits.
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Vue macroscopique du bois (plan radiale)
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Vue microscopique d'une section transversale du bois
Disponibilité
Statut CITES
CITES II
DESCRIPTION GÉNÉRALE DU BOIS
Odeur
Light and pleasant odor.
Teinte
The sapwood is pale yellow brown, it has a thickness of 2.5 cm. The heartwood is yellow-brown darkening on exposure-dark veins, it is clearly demarcated. The silver figure is fine.
Index de Teinte (1 = Noir, 7 = Jaune clair)
4
Grain
Straight or sometimes interlocked. Usually interlocked grain is absent or very slight, without any effect on further processing operations.
Texture
Fine texture is reported in this species.
Luster
Luster is usually low.
Durabilité naturelle
Because of variable resistance to decay, this species can be only considered as durable to decay; it can be utilized without preservative treatment for exterior joinery or similar uses. Resistant to termites attack. Heartwood is resistant to Lyctus attack
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
2
Tensions internes de croissance
For this species no growth stresses are reported.
Teneur en silice
Silica Content: Negligible contents of silica are found in timber of this species. Amounts over 0.05% may affect the wood processing. Silica Value: 0.02
Résistance à l'imprégnation
Nearly impossible to treat with a too much low penetration of the preservative substances.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.66
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.74
Retrait tangentiel total (saturé à 0%TH) (%)
5.9
Retrait radial total (saturé à 0%TH) (%)
3.2
Défauts dus au séchage
Ease of Drying: Drying is fairly easy; some difficulties could occur when drying too fast. Drying Defects: No particular risks of drying defects, subject to normal drying conditions. Kiln Schedules: The kiln schedule has been tested.
Calendrier de séchage en séchoir recommandé
FR-7
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
1.8
Calendrier de séchage en séchoir
http://www.tropicaltimber.info/wp-content/uploads/2015/09/KD_French.pdf
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
950
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
133923
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
650
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
88
Résistance au cisaillement (radial) 12%TH (kgf/cm²)
90
Dureté Janka (latérale) 12%TH (kgf)
675
Dureté Janka (extrémités) 12%TH (kgf)
765
OUVRABILITÉ
Sciage
It is moderately easy to saw.
Coupe de placage de déroulage
Suitable for slicing.
Placage tranche
Suitable for slicing.
Effet d'émoussement
Moderate blunting effect; stellited blades for sawing and carbide tools for machining are advised.
Usinage
Possible difficulties caused by interlocked grain are reported.
Rabotage
Moderately easy; tools must be cautiously sharpened.
Moulurage
Moderately easy; tools must be cautiously sharpened.
Tournage
30
Perçage
Moderately easy; tools must be cautiously sharpened.
Mortaisage
Moderately easy; tools must be cautiously sharpened.
Clouage
Pre-boring is necessary.
Collage
Difficult to glue because of high density.
Ponçage
Easy to perform; it gives good results.
Polissage
Can be polished without surface preparation.
Cintrage à la vapeur
This species can be used for steam bending.
Compatibilité avec outils manuels
No particular problems.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, boards, flooring, parquet, frames, steps, panelling, fittings, FURNITURE AND CABINETS, luxury furniture, cabinets, PLYWOOD AND VENEER, Decorative veneer, TURNING, ornaments, turned furniture, cutlery, lasts, NAVAL CONSTRUCTION, boat deck, port storage, OTHER AND MUSICAL INSTRUMENTS, handicrafts
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
Planches
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Planchers
- 14 - Handbook of Hardwoods
Parquets
- 15 - Empire Timbers
Cadres
- 16 - Woods of the World
Marches
- 17 - Tree Conservation Database
Panneaux
- 18 - W3TROPICOS Missouri Botanical Garden
Accessoires en bois
- 19 - Silica in Timbers
MEUBLES ET M. DE RANGEMENT
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Meubles luxe
- 22 - Dry kiln schedules for commercial woods. Temperate and tropical. Section IV-Asian and Oceanian Woods
Armoires
- 24 - Empire Timbers
PANNEAUX ET PLACAGE
- 25 - Directory of Timber Trade Malaysia
Placage tranché
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Tournage
- 30 - Embassy of Honduras in Japan
Ornements
- 31 - Embassy of Colombia in Japan
Ornements
- 32 - Embassy of Cote d`Ivoire in Japan
Manches de couverts
- 33 - Embassy of Gabon in Japan
Formes à chaussures
- 34 - Embassy of Indonesia in Japan
CONSTRUCTION NAVALE
- 55 - Tropical Timber Atlas of Latin America
Navires_ponts
- 59 - Programa Nacional de uso Sostenible de los Bosques e Incremento a las Exportaciones.
Port entreposage
- 62 - Estudio Tecnológico de Maderas del Perú (Zona Pucallpa) Vol I
Artisanat
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
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