Introduction to Basic Manufacturing Processes and ... - always yours

168 Introduction to Basic Manufacturing Processes and Workshop Technology
9.12.3.2 Planes
A plane is a special tool with a cutting blade for smoothing and removing wood as
shavings. It is just like a chisel fixed in a wooden or steel body. Fig. 9.13 shows a simple
plane. The modern plane has been developed from the chisel. They can also be classified as
jack plane, smooth plane, jointer plane, trying plane, rabbit plane, circular plane and fore
plane. Few important planes are discussed as under.
Striking
Bottom
Throat
Wedge
Bolt
Handle
Heel
Toe
Mouth
Blade Block
Fig. 9.13 Simple plane
Jack Plane
Jack plane is most commonly used plane which is shown in Fig. 9.14 which comprises
of its body about 40 cm long, blade 5-6 cm wide and handle. It is good for rough surfaces that
require a heavier chip. It is ideal for obtaining a smooth and flat surface. There are actually
forty-six different parts of jack plane, the carpenter needs only acquainted with the working
or regulating parts. The main working parts are the cutting blade or plane iron. The adjusting
nut is operated to raise or lower the blade and the adjusting lever which regulates the blade
so as to make possible an even or slanted cut. The cutting blade of the jack plane is guarded
with a metal cap which is adjusted on top of the blade to within about 2.4 mm of the cutting
edge. The metal cap of the jack plane eases the cutting action by curling and breaking off the
wood shavings evenly, thus preventing splitting or splintering of the wooden part.
Sole
Striking
Button
Wedge
Blade
Handle
Fig. 9.14 Jack plane
Smoothing Plane
Smoothing plane is shown in Fig. 9.15 which is somewhat
smaller than the jack plane, measuring between 6 and 10 inches
in length. It is a fine utility tool, especially useful for planning end
grain, chamfering, and other edge shaping of wooden part. This
plane is also used for cleaning up after gluing and assembly, but
owing to its short length should not be used for producing very
true surfaces.
Blade
Fig. 9.15 Smoothing plane