Peck milling

What is successful peck milling?

Peck milling is an alternative to ramping for opening up in solid material. However, it requires excessive power, produces long chips and places undesirable cutting forces on the cutter. Peck milling should therefore only be used when:

• The machine lacks ramping capabilities
• Producing short closed slots

How to apply peck milling

Center cutting – drilling end mills (end milling cutter)

The drill depth of a center cutting end mill is limited by the length of the chip flute, as well as by the chip evacuation capability. For deeper slots, use a peck cycle. When drilling, use a low feed: approx. 50% of the feed recommended for milling.

Note: consider a_p max for full slotting milling.

Max drill depth.