WEL COME TO COE RAC SECTOR

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WEL COMETOCOE RAC SECTOR
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MODULE 1

• BASIC WORKSHOP PRACTICE

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LESSON 15

• HACKSAW FRAME AND BLADE

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OBJECTIVES

• Identify the parts of a hacksaw frame
• Specify hacksaw blade.
• State the different types of hacksaw frame
• and their uses.

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Parts of hacksaw frame
The hand hacksaw is used along with a blade to
cut metals of different sections it is also used
to cut slots and counters
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Types of Hacksaw Frames

• The two diiferenrs types of hacksaw frames are
• Solid frame
• Adjustable frame
• a. Adjustable flat type
• b. Adjustable tubular type

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1.Solid frame

• Only a particular standard length of blade can
  be fitted to this frame

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2. Adjustable Hacksaw frame

Different standard lengths of blade can be fitted
ti this frame
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Hacksaw Blades

• A hacksaw blade is a thin narrow steel band with
  teeth and two pin holes at the ends. It is used
  along with a hacksaw frame. The blade is made
  either low alloy steel (HS) and is available in
  standard lengths of 250 mm and 300 mm .

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Parts of the blade
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Type of hacksaw blades

• All hard blades
• Flexible blades

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Pitch of the blade
The distance between adjacent teeth is known as
the pitch of the blade
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Setting of the saw
Wave setting
Staggered setting