American Walnut Wood

American Walnut (Juglans nigra) – CNC Router carving test

American Walnut wood carved sooth and retains detail during the CNC router test. Tests have been run on various reliefs with both 1/8′ and 1/4′ router bits. The rotation speed versus feed rate is critical as the wood easily show burn marks.
More carvings using American walnut wood is available in our carving library and articles.
Wolf-relief-cnc-router-south coast

Wolf relief carved from American Walnut by cnc router south coast

Family – fruit 3Juglandaceaeforest 2
Distribution: USA
Other Names: American black walnut, Eastern black walnut, Eastern walnut, Gun-wood, Nogal, Nogal blanco, Nogal silvestre, Nuez meca, Tocte, Tropical walnut, Wavey black walnut.
Characteristics: The Sapwood us usually narrow and pale brown in colour. The heartwood varies from rich chocolate-brown to purplish-black. The wood has a fine texture and a rather coarse grain
and weighs about 660 kg/m3 when dried.
Working Qualities: The timber is moderately hard, tough, strong and is easily worked. It finishes well and takes an excellent polish.
Uses: Furniture, cabinets, gun stocks, musical instruments and decorative veneer.

Technical Data: (Visit the Wood DataBase for explanation and details)raw wood

Tree Size: 100-120 ft (30-37 m) tall, 2-3 ft (.6-1 m) trunk diameter

Average Dried Weight: 38 lbs/ft3 (610 kg/m3)

Specific Gravity (Basic, 12% MC): .51, .61

Janka Hardness: 1,010 lbf (4,490 N)

Modulus of Rupture: 14,600 lbf/in2 (100.7 MPa)

Elastic Modulus: 1,680,000 lbf/in2 (11.59 GPa)walnut planks

Crushing Strength: 7,580 lbf/in2 (52.3 MPa)

Shrinkage: Radial: 5.5%, Tangential: 7.8%, Volumetric: 12.8%, T/R Ratio: 1.4

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