The Milling Machine
Like any other piece of equipment in D&T a Milling Machine is perfectly safe to
use as long as you have had instruction from your teacher.
Ensure that you identify where the on/off buttons and Emergency Stop buttons
are located.
Wear Goggles and an Apron and ensure that long hair is tied back.
Make sure that before you Mill the Cutter bit has been fastened in securely
if you are unsure get your teacher to check it.
Do not start unless the guard is in place
Ensure that the material being milled is held securely before you start.
The Full Risk Assessment for the Milling Machine is shown below:
1.038
METAL WORKING: MILLING MACHINES
Applicable
to: vertical & horizontal milling of aluminium; brass; copper; mild steel
& plastics.
Process(es) covered: Milling:
The removal of material to provide a finished form of close tolerance and good
surface finish. Milling may be used to form flat surfaces, grooves or
recesses.
HAZARDS
Trapping
Closing movements between parts under power feed can present a trapping
hazard.
Flying workpiece
Workpieces (and cutting tools) can be ejected violently if not held correctly or if the
machine starts unexpectedly.
User injury
Human contact with rotating parts, especially the cutting tool and swarf can cause
cuts or abrasions. Swarf can enter the eyes. Application of cutting oil using a
brush can lead to entanglement.
Entanglement
Long hair, dangling jewellery or loose clothing can become entangled with rotating
parts, dragging the user onto them.
Manual handling
Heavy parts, eg, machine vices and angle plates or large work pieces can present
a manual-handling hazard.
RISK ASSESSMENT
Trapping
Movements under power feed are usually slow, minimising this
risk.
Flying workpiece
There is a high risk that trainees will not clamp these items securely.
User injury
There is a high risk that trainees will put hands or fingers in hazardous places and
experienced users may attempt short cuts. Application of cutting oil by the use
of a brush has a high risk of entanglement.
Entanglement
Entanglement
is most likely to occur if rotating parts are exposed.
Manual handling
Handling heavy components or awkward manipulation will not occur frequently but will
present a real risk.
CONTROL MEASURES
The provision of adequate space around machines should minimise the trapping risk,
with suitable guarding over drive shafts etc. The risk of trapping can be
reduced by disconnecting or isolating the feed mechanism.
Guards
over the hazardous areas should prevent anything flying towards the user.
Ideally an interlock should prevent the machine operating unless the guard(s)
are in place.
Eye protection should always be worn when using this machine.
Horizontal mills require more extensive guarding than vertical ones. The level of training
of staff and students required for milling is higher than for other operations.
A qualified person should check the setting of the work before cutting is
started. The guards will also reduce the risk of hand or finger injury.
Application of cutting oil
by use of a coolant pump (if fitted) is safer, but where this is not possible then
a long handled brush should be used.
Long hair must be tied back; jewellery should be removed or covered and loose
clothing covered by a secure apron or overall.
The risk of back injury is reduced greatly if two persons handle heavy items.
Like any other piece of equipment in D&T a Milling Machine is perfectly safe to
use as long as you have had instruction from your teacher.
Ensure that you identify where the on/off buttons and Emergency Stop buttons
are located.
Wear Goggles and an Apron and ensure that long hair is tied back.
Make sure that before you Mill the Cutter bit has been fastened in securely
if you are unsure get your teacher to check it.
Do not start unless the guard is in place
Ensure that the material being milled is held securely before you start.
The Full Risk Assessment for the Milling Machine is shown below:
1.038
METAL WORKING: MILLING MACHINES
Applicable
to: vertical & horizontal milling of aluminium; brass; copper; mild steel
& plastics.
Process(es) covered: Milling:
The removal of material to provide a finished form of close tolerance and good
surface finish. Milling may be used to form flat surfaces, grooves or
recesses.
HAZARDS
Trapping
Closing movements between parts under power feed can present a trapping
hazard.
Flying workpiece
Workpieces (and cutting tools) can be ejected violently if not held correctly or if the
machine starts unexpectedly.
User injury
Human contact with rotating parts, especially the cutting tool and swarf can cause
cuts or abrasions. Swarf can enter the eyes. Application of cutting oil using a
brush can lead to entanglement.
Entanglement
Long hair, dangling jewellery or loose clothing can become entangled with rotating
parts, dragging the user onto them.
Manual handling
Heavy parts, eg, machine vices and angle plates or large work pieces can present
a manual-handling hazard.
RISK ASSESSMENT
Trapping
Movements under power feed are usually slow, minimising this
risk.
Flying workpiece
There is a high risk that trainees will not clamp these items securely.
User injury
There is a high risk that trainees will put hands or fingers in hazardous places and
experienced users may attempt short cuts. Application of cutting oil by the use
of a brush has a high risk of entanglement.
Entanglement
Entanglement
is most likely to occur if rotating parts are exposed.
Manual handling
Handling heavy components or awkward manipulation will not occur frequently but will
present a real risk.
CONTROL MEASURES
The provision of adequate space around machines should minimise the trapping risk,
with suitable guarding over drive shafts etc. The risk of trapping can be
reduced by disconnecting or isolating the feed mechanism.
Guards
over the hazardous areas should prevent anything flying towards the user.
Ideally an interlock should prevent the machine operating unless the guard(s)
are in place.
Eye protection should always be worn when using this machine.
Horizontal mills require more extensive guarding than vertical ones. The level of training
of staff and students required for milling is higher than for other operations.
A qualified person should check the setting of the work before cutting is
started. The guards will also reduce the risk of hand or finger injury.
Application of cutting oil
by use of a coolant pump (if fitted) is safer, but where this is not possible then
a long handled brush should be used.
Long hair must be tied back; jewellery should be removed or covered and loose
clothing covered by a secure apron or overall.
The risk of back injury is reduced greatly if two persons handle heavy items.