WOOD

WOOD

1. a. Raw materials

   • Raw material is the material extracted from nature that is transformed to make materials that will later become consumer goods. Raw materials that have already been manufactured but are not yet definitively a consumer good are called semi-finished products, semi-finished products, products in process or simply materials.

2. b. Natural and processed materials

   • A natural material is any product or physical matter that comes from plants, animals, or the ground.Minerals and the metals that can be extracted from them (without further modification) are also considered to belong into this category. Natural materials are used as building materials and clothing.
   • Manufactured products are products that have been made from a series of raw materials, especially those that involve the use of machinery on a large scale. ... Consumer goods, manufactured to be consumed by the end customer.

3. c. The properties of materials

   • Plasticity: property of bodies to acquire permanent deformations. Malleability: ease of a material to spread on sheets or plates. Ductility: property of a material to spread forming cables or wires. Hardness: is the resistance that one material opposes to be scratched by another.

4. d. Tools

   • A tool is an object made in order to facilitate the use of a mechanical task that requires the correct application of energy (as long as it is a material tool). The term tool, strictly speaking, is used to refer to resistant utensils (made of different materials, but initially they materialized in iron as the etymology suggests), useful for performing mechanical work that requires the application of a certain physical force. Currently the word tool covers a wide range of concepts and different activities (from manual tools to computer tools), but always under the idea that the term tool is used to facilitate the performance of any activity.

5. e. Wood and types of wood

   • Wood is an orthotropic material, with different elasticity depending on the direction of deformation, found as the main content of a tree trunk. Trees are characterized by having trunks that grow year after year, forming concentric rings corresponding to the different growth of biomass according to the seasons, and which are composed of cellulose fibers linked with lignin. Plants that do not produce wood are known as herbaceous.
   • Pine tree. Pine is very easy to work with, and like most varieties that are relatively soft it lends itself to sculpture. ... Cedar. The most common type of cedar is the western red variety. ... Maple. ... Beech ... Walnut. ... Cherry. ... Oak. ... Mahogany. Abrir en el Traductor de Google Enviar c

6. f. Properties of wood

   • Flexibility. It is the ability of wood to change its shape without damaging its structure or breaking. ... Hygroscopicity. It happens every time the wood gives up water, its volume decreases. ... Porosity. ... Resistance. ... Color. ... Veined.

7. g. Forms of wood

   • 1.- Solid boards: That can be made up of one or several rectangular pieces glued by their edges. 2.- Sheets and sheets: Formed by thin rectangular plates. 3.- Slats and planks: That are straight prisms, of square or rectangular section, and of great length. 4.- Moldings, profiles and rounds: Obtained from slats that are given a certain section

8. h. Wood working tools

   • Vice. Working with wood is synonymous with having to handle and cut wooden planks, and for this, nothing better than a vice. ... Brush. ... Drill. ... Circular saw. ... Hammer, pliers and screwdriver.

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