1. SAWS

 

• Basically a saw drags a number of cutting teeth through work to cut a thin slot. When done, two major piece can be separated.

 

• The basic saw blade look like,

 

 

• Saw types,

Circular saws - use round blades rotated at high speeds.

Band saw - a band is in one continuous loop-, like a ribbon.

Hack saw - a small blade much like a steel ruler. This is moved back and forth (it reciprocates) to provide the cutting action.

 

• Saw operations include,

Cutoff - one smaller piece of stock is cut from a larger one.

Contouring - a bandsaw is used to cut a non-straight path in an object, often this step precedes other machining operations, such as drilling.

Stack Cutting - multiple pieces are cut at the same time.

Shaping - Chunks are cut out of a larger piece.

Angular Cuts - such as cutting a side hole in a pipe.

Internal Cuts - the entire hole is enclosed in the material.

Ripping - Long cuts to separate parts into halves.

 

 

1.1 SPEEDS AND FEEDS

1.2 PRACTICE PROBLEMS

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