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TECHNOLOGY 1º ESO
UNIT 2: WOOD AND ITS DERIVATIVES
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INDEX
1. – WOOD
1. 1 – PROPERTIES OF WOODS
1. 2 – HOW TO PROCESS WOOD
1. 3 – CLASSIFYING WOOD
1. 4 – WOOD DERIVATIVES
1. 5 – ACTIVITIES
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INDEX
1. – WOOD
UNIT 2: WOOD AND ITS DERIVATIVES
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Wood is a raw vegetable material. It comes from the trunks of trees and bushes
1. – WOOD
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Wood is a raw vegetable material. It comes from the trunks of trees and bushes.
Cellulose fibres
1. – WOOD
It is composed of:
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Wood is a raw vegetable material. It comes from the trunks of trees and bushes
Cellulose fibres
1. – WOOD
It is composed of:
Lignin
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1. 1 – PROPERTIES OF WOODS
Physical properties
Hardness Density Electrical insulation Thermal insulation Porosity Mechanical resistence Colour and grain
Ecological properties
Renewable Biodegradable Recyclable
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1. 2 – HOW TO PROCESS WOODS
The process starts with the extraction of the timber from the forest and ends with the production of planks.
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The stages of this process are:
The trees are cut down and branches are then cut off.
CU
TT
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1. 2 – HOW TO PROCESS WOODS
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CUTTING
It can be transported by road, rail or water
TR
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1. 2 – HOW TO PROCESS WOODS
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CUTTING
It happends in the sawmill
TRANSPORT
1. 2 – HOW TO PROCESS WOODS
RE
MO
VIN
G
TH
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AR
K
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CUTTING
The timbers are cut into planks
TRANSPORT
1. 2 – HOW TO PROCESS WOODSS
AW
ING
REMOVING THE BARK
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CUTTING
The wood is dried under pressure.
TRANSPORT
1. 2 – HOW TO PROCESS WOODSD
RY
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REMOVING THE BARK
SAWING
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CUTTING
To make the wood smooth and evenly
TRANSPORT
1. 2 – HOW TO PROCESS WOODSP
LA
NIN
G
REMOVING THE BARK
SAWING DRYING
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CUTTING
TRANSPORT
1. 2 – HOW TO PROCESS WOODS
PLANING
REMOVING THE BARK
SAWING
DRYING
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CUTTING
TRANSPORT
1. 2 – HOW TO PROCESS WOODS
PLANING
REMOVING THE BARK
SAWING
DRYING
Natural drying
Artificial drying
Mixed drying
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1. 3 – CLASSIFYING WOOD
The wood is classifying as hardwood and softwood depending on the tree it comes from.
Hardwood
Deciduous trees They grow slowly They contain resin They are compact and resist
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1. 3 – CLASSIFYING WOOD
The wood is classifying as hardwood and softwood depending on the tree it comes from.
Softwood
They grow quickly They are light and easy to work
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1. 4 – WOOD DERIVATIVES
There are two kind of wood derivatives. They are formed by chips that are compressed and glues together.
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1. 4 – WOOD DERIVATIVES
Prefabricated wood
Easy to work A lot of sizes Not attacked by parasites Helps to protect the enviroment Cheaper
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There are two kind of wood derivatives. They are formed by chips that are compressed and glues together.
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1. 4 – WOOD DERIVATIVES
Prefabricated wood
Cellulose materials
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Paper
How it´s made: Paper
There are two kind of wood derivatives. They are formed by chips that are compressed and glues together.
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INDEX
2. – EQUIPEMENT, TOOLS AND MACHINES
2. 1 – MEASURE, MARK AND DRAW
2. 2 – CUTTING AND SAWING
2. 3 – DRILLING
2. 4 – CARVING OR LEVELLING
2. 5 – PLANNING OR SANDING
2. 6 – FINISHES
2. 7 – ACTIVITIES
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2. – EQUIPEMENT, TOOLS AND MACHINES
UNIT 2: WOOD AND ITS DERIVATIVES
These are the steps we follow to make an object out of wood
MEASUREMARK
AND DRAW
CUT DRILLCARVE
AND LEVEL
PLANE AND
SAND
JOIN ORASSEMBLE
PAINT
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2. 1 – MEASURE, MARK AND DRAW
Carpenter´s square
UNIT 2: WOOD AND ITS DERIVATIVES
There are some measuring tools such as:
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2. 1 – MEASURE, MARK AND DRAW
Carpenter´s square
UNIT 2: WOOD AND ITS DERIVATIVES
There are some measuring tools such as:
Measure type
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2. 1 – MEASURE, MARK AND DRAW
Carpenter´s square
UNIT 2: WOOD AND ITS DERIVATIVES
There are some measuring tools such as:
Measure type
Compass
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2. 2 – CUTTING AND SAWING
The hardness of the wood
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The choice of tools depends on:
The thickness of the wood
The type of cut we want to make
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2. 2 – CUTTING AND SAWING
Benchsaw
UNIT 2: WOOD AND ITS DERIVATIVES
Type of saws:
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2. 2 – CUTTING AND SAWING
Benchsaw
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Type of saws:
Jigsaw
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2. 2 – CUTTING AND SAWING
Benchsaw
UNIT 2: WOOD AND ITS DERIVATIVES
Type of saws:
Jigsaw
Circular saw
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2. 3 – DRILLING
Tools
UNIT 2: WOOD AND ITS DERIVATIVES
Before drilling, clamp down the piece of wood so that it doesn´t move
Gimlet Drill bits
Manual drill
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2. 4 – CARVING OR LEVELLING
UNIT 2: WOOD AND ITS DERIVATIVES
The main function of these tools is to chisel pieces of wood and make it smooth
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2. 5 – PLANNING OR SANDING
Tools
UNIT 2: WOOD AND ITS DERIVATIVES
We need to smooth the surface and edges of wood pieces.
File TeaselPlane
Sander
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2. 6 – FINISHES
UNIT 2: WOOD AND ITS DERIVATIVES
To protect and decorate the wood surface, we add a finish