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5.
Achieving optimum results and avoiding incorrect usage
It is recommended that:
■
The borer should be fitted and tensioned with the key in such a way that the borer is positioned
precisely between the three clamping jaws of the crown gear, quick clamping or collet chuck
■
Clamp the milling machine with shaft using the collet chuck and the appropriate collets
■
Clamp the milling machine with bored hole and longitudinal groove using the plugged milling
machine spike
When boring, attention is to be paid that:
■
The appropriate revolutions are set according to the diameter of the borer
■
The pressure is gentle enough that the borer is able to cut without straining
■
In the event of too much pressure, the result is early borer wear or even borer breakage or jamming
in the bored hole.
still by pressing the emergency off switch
■
When using hard materials, for example, steel, ordinary boring oil must be used
■
The borer is always to be removed from the workpiece with the spindle rotating
■
When using non-metal materials, for example, wood, tearing on breakthrough can be prevents by
clamping a piece of waste wood under the workpiece to be processed
■
For wood workpieces with a veneer or plastic coating, always work from the side with the veneer
■
With very thin sheets, also clamp using a piece of waste wood
When milling, attention is to be paid that:
■
The appropriate cutting speed is selected (see the section on revolution setting)
■
For materials with normal firmness values, e.g. steel 18-22m/min
■
For materials with higher firmness values 10-14m/min
■
The pressure is to be selected so that the cutting speed remains constant
■
For hard materials, use ordinary boring oil
When clamping the workpieces, attention should be paid that:
■
The appropriate clamping screws are used for the T-slots of the milling machine table or use a ma-
chine vice
■
The milling machine table of the cross slide support is to be cleaned of dirt residue and shavings in
order to ensure perfectly even clamping
20
In the event of jamming, immediately bring the main drive motor to a stand-
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