Carpentry and Joinery - Technology and Design

Carpentry and Joinery - Technology and Design

Carpentry and Joinery Workshop tools General Chisels There are many different types of chisels and each has a particular use. The handles of most chisels are made from ash, beech, box wood

or plastic and a mallet (not a hammer) is normally used to apply force General Chisels BEVEL edged chisels are slightly undercut making them easy to push into corners. They are normally used for finishing dovetail joints.

FIRMER chisels have a blade with a rectangular cross-section. This means that they are stronger and can be used for tougher/heavier work. A PARING chisel is a longer, thinner chisel which can be pushed into long joints such as housing joints. It is used for cleaning up the joint and to make it an accurate fit. Mortise Chisels

Mortise chisels are used for chopping out joints (chiselling away the waste wood They are particularly useful for cutting mortise joints as they are strong enough to withstand heavy blows with a mallet Mortise Chisels

The handle is normally made of ash or beech with a steel hoop at the top to stop it splitting. It also has a strengthening piece called a ferrule Try Squares

The woodworkers trysquare is composed of two main parts - the stock and the blade. The blade is made from hardened and tempered steel which makes is resistant to damage. The stock is usually made from rosewood although cheaper versions can be made from plastic or cheap woods. A brass face is added to the stock to ensure a

straight edge. Mortise Gauge The mortise gauge is a special type of marking gauge and it is used to mark wood so that a mortise can be cut into it The mortise is marked out using the mortise gauge although it must be set to the correct size of mortise

chisel very carefully. A mortise chisel is then used to remove the waste wood. Tenon Saw Back Saws/Tenon Saws get their name from the steel or brass back (labelled on the diagram). The heavy back gives

the saw its weight which is useful when sawing wood Coping Saw Coping saws are used for cutting a range of woods and are very useful for cutting unusual

shapes or curves. using a coping saw is a test of skill as it can be difficult to control and requires practice Materials http://www.technologystudent.com/d esignpro/mboard1.htm

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