turning. what was wrong with that picture? we have a “engine lathe” so named because previously...

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Turning

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Page 1: Turning. What was wrong with that picture? We have a “Engine Lathe” So named because previously lathes were powered by foot treadle or driven by external

Turning

Page 2: Turning. What was wrong with that picture? We have a “Engine Lathe” So named because previously lathes were powered by foot treadle or driven by external

What was wrong with that picture?

Page 3: Turning. What was wrong with that picture? We have a “Engine Lathe” So named because previously lathes were powered by foot treadle or driven by external

We have a “Engine Lathe”

So named because previously lathes were powered by foot treadle or driven by external power source (water wheel, stem engine)

Generally called Manual Lathe

Page 4: Turning. What was wrong with that picture? We have a “Engine Lathe” So named because previously lathes were powered by foot treadle or driven by external

Turning is

A machining operation where the work piece is rotated and the tool isn't

The tool is suitably formed for the particular operation

Page 5: Turning. What was wrong with that picture? We have a “Engine Lathe” So named because previously lathes were powered by foot treadle or driven by external

Tool Forms

Page 6: Turning. What was wrong with that picture? We have a “Engine Lathe” So named because previously lathes were powered by foot treadle or driven by external

Cutting Tool Geometry

Many factors determine tool shape:

Material Depth of cut Economics

Page 7: Turning. What was wrong with that picture? We have a “Engine Lathe” So named because previously lathes were powered by foot treadle or driven by external

Lathe construction

Six major parts: Headstock Bed Carriage Tailstock Quick change gear

box Stand

Page 8: Turning. What was wrong with that picture? We have a “Engine Lathe” So named because previously lathes were powered by foot treadle or driven by external

Todays operation

Facing Turning OD