Gundrilling

Deep drilling, also called gundrilling is a specific process to drill deep holes

Key Points for Deep Drill

Special options are applied, such as the management of feed and spindle speed at the start and end of machining and when intersecting other holes or cavities.

Mandatory rules to program a deep drilling operation:

A pre-drilling operation must be done in the hole,
the intersected holes and cavities must be machined before to be taken into consideration by the deep drilling.

Click here for more detailed explanation: Deep drilling

Strategy Parameters

Dialog Area	Parameters
Depth	Depth/Reference	Depth
Depth	Retract
Leadin Strategy	Starting distance in reduced feed	Coolant postponed
	Stop for leadin control	Spindle for entry
	Feedrate for entry
Leadout Strategy	Distance before going through	Retract Distance(Peck)
	Spindle for retract	Feedrate for retract
	Final dwell
Speeds	Feedrate reduction coef	Reduced feedrate
Speeds	Spindle speed reduced	Feedrate in cavity
Intersections	Distance before intersection	Distance after intersection
Cavities	Distance after entering cavity	Mini size of cavity
Cavities	Distance before leaving cavity

Movement Parameters

Dialog Area	Parameters
Safety (in Z)	Rapid plane alt.	Safety distance
Approach and return in Z	Approach altitude	Retract altitude
Approach and return in Z	Return altitude

Technology Parameters

Dialog Area	Parameters
Cutting Conditions	Quality	Cutting Speed
	Feedrate/tooth	Spindle direction
	Level	Spindle speed
	Feedrate	Rapid feed
	Sp. speed range	Specific coolant
	Coolant number
Tool Numbering	Tool number	Specific Number
Tool Numbering	Length compensation number	Diameter compens. Nb
Users Fields	Comment	Control Device
Users Fields	Milling Set

Options Parameters

Dialog Area	Parameters
Behaviour on the clamps and components	Gouge Check	Offset XY
Behaviour on the clamps and components	Safety area	Offset Z