Different circumstances should be the choice of different materials and different weapons to deal with. The following recommendations and detailing various types of wood and their characteristics :
Japan Bai Mu ( Shiro Kashi ( Japanese White Oak)
Japanese martial arts sword masters that Bai Mu actually refers to the Japanese production of white oak, its internal structure is tight, with radial texture properties and generally North American white oak are similar. Young trees showed bone white or pale brown, with the growth of age, wood color would be deepened gradually. Japanese production of Bai Mu and North American white oak some not too, Japan Bai Mu is a perennial growing season long green plants, unlike the North American red oak or white oak, interior without obvious ring hole material; if the wood inside the existence of such open hole subjected to impact, the wood will right itself hardness produced harm, Nissan Bai Mu than North white oak but also good, no ring cavity defects, and sag resistance, impact strength than North white oak but also good.
However, Nissan Bai Mu as wooden weapons have two disadvantages, a wood itself is not stable degree is higher, it is very easy for atmospheric humidity change and deformation; second, as time grows, the weapon itself strength will be reduced, which is all the oak common defect. During the testing, the older Bai Mumu is difficult to maintain the original line, and the appearance of dry, easy generation of empty, in the mutual impact experiments also younger wood chip easily.
Obviously, Bai Mu is a good quality wood, as a samurai exercise can keep several years of excellent characteristics, but wood also has a lifetime limit.
( Note: Kong Cai Ring porous wood, ring, in cross section spring material tube hole is summerwood big, difference is apparent, in the spring of wood formed part of obvious hole ring )
William ash ( ash White Ash)
Ash family best known for the ash tree wood, wood weight and strength, and is often used in bat, tools wooden handle, paddle apparatus. Ash tree with high stability and famous. Its North American production than other hardwoods but not distorted and deformed.
Ash tree belongs to the ring hole of hardwood, ash can be classified as hard ( Northern Hard) and soft ( Southern Soft or Swamp Ash) of the two. Hard wax wood is very hard and heavy, color is cream in color, it is the heart part is relatively soft, pink or brown color, the porosity is larger, has direct impact will not produce the dent, which would lead to this part of the wood direct fragmentation, therefore not suitable to be as directly impact with weapons, such as swords, but on the contrary, the ring Kong Cai produced by the material properties, let the wood itself is continuous, the spear and the major axis portion of the razor is one of the best materials.
John Birch ( Birch)
Birch is fairly heavy and high hardness. It is similar in appearance and maple, flat, texture is firm and with equiaxed crystal structure. White birch refers to the birch bark and heartwood and sapwood between white and red birch refers to the same tree in the heartwood. Birch stands in mid-latitude forest region, and is an important commercial hardwood. Birch can bear high impact characteristics, therefore very suitable for rod, bar, razors and other weapons. But its disadvantage is that under the strong impact, will be left on the surface of wood dent.
In the 1950’s, the United States forest products laboratory development in a high pressure environment, extraction resin and rubber wood (Compreg, a compressed wood impregnated ) process was to birch as main raw material. Until now, the birch is still glued compressed wood is one of the main materials.
High impact grade walnut tree ( Impact Grade Hickory)
Hickory is mainly distributed in Asia, central and North America, the world has at least 16 different varieties; mixed hickory, mainly for furniture and cabinets, throughout the United States in the timber yard is seen everywhere. Due to the lack of appropriate description, here [ high impact grade hickory ] ( Impact Grade Hickory) refers to the Appalachian Mountains of central – a small area produces suitable as a wooden weapons hickory tree species; in addition to wooden weapons, the hickory is also very suitable. Cabinets and other furniture. Here the production of” high impact grade hickory tree” is for the most part bone white or reddish, with high density, texture is firm and with equiaxed crystal structure, surface smoothness and other advantages. It is capable of withstanding impact far exceed those of all locally produced lumber, also more than has been generally used in wooden weapons Japan Bai Mu exotic varieties. A few make Bai Mu seem to be due to age and become brittle, but hickory tree still can retain its hardness and characteristics. Although wood hit surface will still remain the dent, but it is a long time since leaving practice inevitable nature trail. Even long time continuously under high energy impact, the wood itself is still not easily broken. This should be for each road places should choose the best practice of wood, it is safe, enough strength, appearance and daily life or available, just as Japanese martial artist ‘s choice of Bai Mu as a weapon, in American martial artist can consider to use better hickory trees as wooden weapons.
Henry rosewood laminate (LRC, Laminated Rosewood Composite)
Rosewood laminate (LRC of the following abbreviation ) refers to the number of the very thin layer of birch veneer, in under great pressure made of synthetic wood such as rosewood color rendering, looks like a bright black wood itself is very stable, the strength is enough. LRC made weapons have some advantages, its specific gravity of 1.3, because of its high density and high hardness, so that it is suitable to make smaller weapons, in addition, due to the local production of birch can be synthesized, so it can replace those imported from tropical noble hardwood, will not have the problem of the shortage of resources ; in addition, due to wood interior of any small space filled with high pressure filled with the resin, so the interior wood without any moisture influence, therefore no damp warpage problems. When the whole wood after careful making, its surface will appear as a bright and smooth ; the LRC density is high, made of swords can in itself weight ratio and the balance of good presentation, or even made up and waving and true sword has the same feeling. Integral and its excellent physical properties, should be able to say that is closest to the true sword best annotation. However, since the LRC itself is not easy because of impact dent, will make people in LRC itself impact ability higher than natural wood made any false impression, according to the results of the experiments, although the LRC impact bearing ability is far too high for general natural production of timber, but also have high too much ; in addition, because the wood itself, hardness is big and not easy to deformation, therefore, if the wood itself shape with sharp edge ( like the backsword blade), extremely easy to cause impingement, or is dropped into the concrete, wood itself will not form dents caused the cracking. Because the wood itself is a synthesis of the reason, made of wooden weapons, the edge will become very sensitive, the weapon itself is very likely that the impact from the end edge corner near the beginning of destruction, for these reasons, does not recommend the use of LRC as a training weapon, but very suitable to buy them for her alone Suburi exercises, separate move practice, is a self-defense or other special purposes.
The final thing to consider is that not all use the hard and heavy wooden sword as a weapon ; most of the people use for their own habits and experience in the wood for a favorite weapon materials, when the two sides make weapons training, using heavy hard weapons wood party does use to budget oriented choice so wooden arms of another party to make serious equipment damage. In consideration of safety and interest, in the daily practice of both sides should avoid the use of excessive excellent weapons, so as to avoid the opponent’s weapon causing unnecessary harm. This is another opportunity to practice some state of mind, and should not have : my weapon materials better, you put your katana is interrupted and so on mentality.
African Ebony ( African, Ebony )
Almost all of the ebony, including tropical Africa produced ebony, is a very hard and very heavy hardwood, but note that the ebony itself impact strength is not itself be appreciate hardness. Includes New Zealand produce Coromandel Ebony ( Coromondel Ebony) and West Africa Gabon Ebony ( Gabon Ebony), ebony and their color is black in color, and occasionally with grey stripes, and the top of the piano black keys used by Kuroki (Blackwood ) of similar nature, the ebony itself density, excellent hardness and the ability to support, ebony has been holding a small arms is the perfect choice. But as with most production in tropical, considering the environmental protection and the relationship between the output of the, now should reduce the ebony cut and use, there are many similar or better alternative to wood, smart users should be able to distinguish what is the appropriate choice.
De Honduras rosewood ( Honduras Rosewood)
There are many natural red varieties, most have excellent physical properties, high density, high impact strength and resistance to indentation. Honduras rosewood usually dark reddish brown, with black or purple stripes, it’s beautiful and dazzling stripe structure, behind the color change is amazing. Pieces rosewood is often valuable to the order can not be met, it is usually made of wooden knife, short rods and other short apparatus to made longer swords, wands often weapon, will show very precious. Because red is very precious, is a protected plant, so the author does not recommend the use of practice as a weapon of choice.
Bolivia rosewood ( Pau Ferro, also known as Ironwood )
The United States Southern Ironwood tree ( Pau Ferro), also known as the Bolivia rosewood ( Bolivian Rosewood), it is a rather heavy wood, appearance and Indonesian rosewood were similar, with a beautiful dark brown, with a black stripe. And other tropical produce wood, there are very comfortable and delicate touch, are often made of wood, cane, razor blades and other equipment.
Purple mahogany ( Purpleheart Wood)
Purple heart is now can be found as a weapon the largest and longest timber. Since trees grow very tall, so it is very suitable for use as a gun rod, bar, and other weapons materials. Wood itself very hard wood texture is straight, suitable especially for the development of weapons. The wood is very hard, so those who need elastic or need to bend the long arms may not fit with purple heart wood as material. However, the purple heart wood in some special purposes is a kind of cheap and common good wood.
De Coromandel Ebony ( Coromondel Ebony)
As Meng Jiaxi Ebony ( Macassar Ebony), Coromandel ebony is a kind of nature produces good wood, are often made of wood, sticks and other weapons. Because of excellent properties, wood itself showed a unique and obvious sense. Coromandel ebony itself hard texture, wood and meticulous, difficult processing, therefore expensive ; usually longer than New Zealand Coromandel, so named. The appearance of a significant black, with a brown stripe, also can appear sometimes green or other color spots, can be said to be the most beautiful of all the forest timber.
The more requirements of texture of the practitioners, Coromandel ebony made weapons can be regarded as the best crafts wooden weapons, but due to the lack of production, people should not be unrestricted use of the unique natural resources for practice tool, this kind of wood is used, preferably in order to special circumstances while the retention — maybe someday I can take it as a gift to the dojo on senior normal in use will be better.
, Osage orange wood ( Osage Orange)
The American Southwest Native Osage orange wood, is often the traditional Bowyer using highly in the longbow productions. Wood just sliced is bright yellow, after contacting air slowly turned brown. Wood density itself is not high, also do not have good mechanical property, but excellent flexibility, and not easy to break, can withstand the high impact force when the Osage orange wood used in long weapons, people often wood itself to absorb the shock of the force and was shocked.
White Pine / pine wood
The proportion of Specific Gravity: 0.35
Able to withstand the impact strength of Impact Strength: 86
Wood: African Ebony / African ebony
The proportion of Specific Gravity: 1.10
Able to withstand the impact strength of Impact Strength: 110
Wood: Red Oak / red oak (red Jian )
The proportion of Specific Gravity: 0.63
Able to withstand the impact strength of Impact Strength: 169
Wood: Purpleheart / purple heart
The proportion of Specific Gravity: 0.79
Able to withstand the impact strength of Impact Strength: 173
Wood: Pau Ferro Bolivia rosewood, Ironwood
The proportion of Specific Gravity: 0.73
Able to withstand the impact strength of Impact Strength: 173
Wood: Shiro Kashi / Japanese White Oak) / ( Bai Jian ) is a tough and not easy to break Japanese long practice with the weapons
The proportion of Specific Gravity: 0.82
Able to withstand the impact strength of Impact Strength: 179
Wood: Honduras Rosewood / Honduras rosewood
The proportion of Specific Gravity: 1
Able to withstand the impact strength of Impact Strength: 189
Wood: White Ash / ash ( ash )
The proportion of Specific Gravity: 0.60
Able to withstand the impact strength of Impact Strength: 196
Wood: Birch / white birch
The proportion of Specific Gravity: 0.62
Able to withstand the impact strength of Impact Strength: 196
Wood: KWW Lamin