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

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.

Cellulose fibres

1. – WOOD

It is composed of:

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

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

UNIT 2: WOOD AND ITS DERIVATIVES

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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

UNIT 2: WOOD AND ITS DERIVATIVES

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CUTTING

It happends in the sawmill

TRANSPORT

1. 2 – HOW TO PROCESS WOODS

RE

MO

VIN

G

TH

E B

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

UNIT 2: WOOD AND ITS 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

Cellulose materials

UNIT 2: WOOD AND ITS DERIVATIVES

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

UNIT 2: WOOD AND ITS DERIVATIVES

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

UNIT 2: WOOD AND ITS DERIVATIVES

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