Unit 14- Secondary Machining

Good Morning

Look at the parts of a milling machine◦How they work, and similarities between milling machines

Investigate work holding devices used when carrying out a milling task

Today’s objectives

Milling Machines

Milling is the term given to the removal of material using a milling machine.

The material is able to move in the X and Y axis. The tool moves in the Z axis.

The material is fixed i.e. doesn’t rotate. The tool rotates and cuts the work piece.

MIlling

Head – This contains the motorGear box – Used to select different speeds

Spindle – This rotates and holds the Cutter

Table – This is where the work is held

X and Y traverse wheels

Basic Machine Anatomy

Basic lathe anatomy

Basic milling operations

Milling Machine Vice

Swivel Base Vice

Vee Block

Dividing Head

Rotary Table

Indexing Chuck

Tilting Table

Milling Machine Work Holding

There are many types of holding devises available to us when milling

It is up to YOU the engineer to decide on the right equipment for the task

Today we have looked at◦Milling machine lay out◦Milling machine operation ◦Milling machine work holding devices

Conclusion

Investigate different types of milling cutter and their uses

Continue with the drilling and tapping exercise.

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