Spinner Project – Spinner Project – Lesson 8Lesson 8

R.Winter 2009R.Winter 2009

Learning Aims:Learning Aims: To recap the difference between ferrous, To recap the difference between ferrous,

non-ferrous and alloys when talking about non-ferrous and alloys when talking about metalsmetals

To know the health and safety rules for To know the health and safety rules for using the lathe and pillar drillusing the lathe and pillar drill

To have finished filing your work and To have finished filing your work and stamping the numbersstamping the numbers

To know how to clamp and ‘face off’ a To know how to clamp and ‘face off’ a piece of material in a lathe and how to piece of material in a lathe and how to ‘center’ the tool‘center’ the tool

Health and Safety rulesHealth and Safety rules

In 1 minute, discuss with the people In 1 minute, discuss with the people on your table what safety rules you on your table what safety rules you think might need to be followed for think might need to be followed for the CENTRE LATHE.the CENTRE LATHE.

Health and Safety rulesHealth and Safety rules Goggles MUST be worn at all timeGoggles MUST be worn at all time Safety guard down before cuttingSafety guard down before cutting Long hair tied backLong hair tied back Jewellery, watches, loose clothing removedJewellery, watches, loose clothing removed NEVER leave the chuck key in the machineNEVER leave the chuck key in the machine Always ensure the work is clamped Always ensure the work is clamped

properly and the tool is clamped and properly and the tool is clamped and centralised on the workcentralised on the work

Only take SMALL cuts at a time (les than Only take SMALL cuts at a time (les than 1mm)1mm)

STRICTLY 1 person at a time to use the STRICTLY 1 person at a time to use the machinemachine

Facing OffFacing Off The tool is moved The tool is moved

directly along the face directly along the face of the material at a of the material at a slight angle (different slight angle (different angle to turningangle to turning

The Tool must be The Tool must be centered first of allcentered first of all

The speed should be The speed should be kept fairly fast, but kept fairly fast, but suitable for the suitable for the material – about material – about 1800rpm1800rpm for steelfor steel

Turning DownTurning Down The tool is profiled to The tool is profiled to

look like a wedge shape look like a wedge shape with the cutting point with the cutting point being located as shown being located as shown on the picture.on the picture.

The tool is moved along The tool is moved along the using the carriage the using the carriage slide and travels slide and travels sideways along the work sideways along the work removing materialremoving material

The tools can have either The tools can have either a radiu end, or a pointed a radiu end, or a pointed cutting end.cutting end.

The tool is the same as The tool is the same as used for facing off, but used for facing off, but the angle is different.the angle is different. Direction of

travel of tool

Material being turned