Page 52 - Turner 1st sem Practicals

Fixing of Hacksaw
This shall help you to
• fix hacksaw blades maintaining correct tension and direction
• cut metal pieces with a hacksaw.

Fixing of Hacksaw Blades
Fig 3
The teeth of the hacksaw blade should point in the direction
of the cut and away from the handle. (Fig 1)

Fig 1

The blades should be held straight, and correctly tensioned
before starting. Atleast two to three teeth should be in contact with the work
While starting the cut make a small notch. (Fig 2) while cutting. Select a fine pitch blade for thin work. (Fig 4)
Turn and change the position of the pipe while hacksawing.
Fig 2
Normally, a coolant is not necessary while hacksawing.

Fig 4

The cutting movement should be steady and the full length
of the blade should be used.
Do not move the blade too fast. While finishing
Apply pressure only during the forward stroke. (Fig 3) a cut, slow down to avoid breakage of the
blade and injury to yourself and others.

40 Producltion & Manufacturing : Turner - Exercise 1.2.13