Course Description

SAW SELECTION                 

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Type of machine

Explain the various types of saws (cold saws, vertical and horizontal band saws, and power hacksaws).

Determine the type of saw to be used in cutting the workpiece to blueprint specifications.

Geometry of workpiece

Describe how the geometric shape of the workpiece affects the machine selection and workholding device.

Type of material to be cut

Explain how the type of material dictates the type of blade, pitch, and machine used in cut-off operations.

BLADE SELECTION

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Types of blades available for a specific function

Use H.S.S. and bi-metal band saw blade tables.

List the available types of hacksaw and circular saw blades.

Pitch and set

Define pitch, set, and the variations of pitch or set that are available on the cut-off and bandsaw.

Use correct pitch for size and type of material.

FEED AND SPEEDS DETERMINATION

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Feed and speed tables

Use feed and speed tables to set up machines.

Feed and speed calculations via Machinist's Handbook formulas

Calculate and set cutting feed and speed rate for sawing.

USE OF COOLANTS

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Coolants

Use and maintain coolant system for sawing.

SAW AND SAW BLADE MAINTENANCE         

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Maintenance

Remove and replace saw blades.

Cut and weld bandsaw blades.

Set up and use stops and guides to control dimension of cuts.

Perform basic saw maintenance.

SAWING OPERATIONS

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Planning sawing operations

Plan sequence of sawing operations.

Lay out workpiece with dye, scribed lines, and points.

Vertical band saws

Saw straight, curved, and irregular lines on vertical band saw.

Use of jigs and fixtures for sawing

Set up workpiece in sawing machine using jigs and fixtures.

Horizontal band saws

Saw materials to layout on vertical band saw.

Vertical band saws

Set up and use vertical band saw for interior contour sawing.

Set up and use vertical band saw to file parts.

Cut straight lines on vertical band saw using automatic feed.

Cut angles on vertical band saw by tilting table.

Slot, groove, miter, and trim parts on saw.

Set up and use power hacksaw for production work.

Set up and use horizontal band saw for production work.

Set up and use friction saw for production work.

Set up and use rubber disk saw for production work.

DRILLING SET UP 

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Proper tools

Select drills using drill chart.

Use and maintain coolant system for drilling.

Sequence of operations

Change drills and tool holders.

Calculate and set drilling speeds, feeds, and depth of cut.

Drill maintenance

Align workpiece, jibs, and fixtures with drill spindle.

Speeds, feeds, and depth of cut calculation

Align tools with drill guide bushings.

Position spindle over hole location by swinging radial arm.

Drill set up

Perform basic drilling machine maintenance.

Plan sequence of drilling operation.

Set up drill press.

Sharpen drills.

DETERMINING DESIRED DRILLING OPERATION FROM BLUEPRINTS

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Determine operation and location from blueprint.

OPERATING DRILLING MACHINES

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Drilling operations

Center drill and drill holes to size.

Other drill press operations

Countersink, counterbore, and spot- face parts to specifications.

Drill blind holes to specifications.

Drill deep holes to specifications.

Drill holes to specifications using special drills.

Thread parts using tapping attachment.

Ream holes to size.

Set up drill to layout using edge finder.