Основной каталог Kyocera 2021 - 2022 - страница 771

MagicDrill DRWMagicDrill DRW Toolholder DRW

External coolant is not recommended because the amount of chips will be enormous. Use internal coolant. See the graph of “Drill diameter and coolant amount”.

Higher output is preferable. What is important is enough torque rather than high spindle rate. See the examples of required power as below.

Drill diameter and coolant amount

40

10 discharged after it passes through drill.

50 60 70 80 90

Drill diameter (mm) * The required power was read on the load meter.

During processing, force of deflection is applied to the center of the drill. If the drill is just pulled out from the position where processing is finished, tool markings will be made. To prevent tool markings, perform offset before pulling out the drill.

KK

How to prevent tool markings· How to prevent tool markings

1. Drilling the hole (The spindle revolves) 2. Turn back approximately 0.5 mm (The spindle revolves)

Outer Inner

edge edge

side side Chips are adhering to

the bottom when drilling stops.

• Without turning back, chips remains adhering to the bottom.
• If offset (3) is performed without turning back, the bottom of drill contacts with the inner surface of hole.
• Turning back is necessary for blind holes but not for through holes.

3. Stop revolution and perform offset 4. Pull out the drill

(The spindle stops)

Example of drilling program

G90G54G0G43X0Y0Z100.0H10 S477M03 Z2.5M8 Avoid contact G01Z -80.0F48 Z-79.5M19 The spindle

moving directions are unique to the equipment. Make a clearance to prevent the tool from contacting when pulling out. (Approximately 0.1~0.2 mm) Tool markings are not made (or are only slight even if made).