Page 579 - Dormer

GENERAL HINTS

RECOMMENdATIONS

• Always use the appropriate speed rated die grinder (refer to the speed chart on page??)

• Routine maintenance of die grinders is important, ensure they are oiled and bearings are not worn
• Always clean the clamping nut, collet and internal taper of the die grinder when changing a burr

• Try to avoid mechanical shock and heavy impact of the burrs
• Try to avoid thermal shock by not allowing the burr to become overheated

• don’t plunge the burr too deep into the workpiece material or jam the bur into corners or channels

TROUBLE SHOOTING USING BURRS

PROBLEM CAUSE
Chipping of Burr Teeth Running too low rpm, can cause bouncing

Eccentricity (worn spindle, collet or bearings)

Plunging and jamming the burr into the workpiece
Clogging of Burr Teeth Flute length or overall length too long

Incorrect geometry choice for workpiece material

Premature Wear Running too high rpm for size of burr and workpiece material
Eccentricity (worn spindle, collet or bearings)

Head Detaches from Shank Running too high rpm causing overheating

Running for prolonged periods causing overheating

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