Helical Interpolation Min. Hole Diameter from solid = 1,43 x Dia. cutter Max. Hole Diameter from solid = 1,95 x (Dia. cutter - radius) Max. Dia. Max. Dia. Max. Enlargement Diameter = Hole size + ((Dia. cutter - radius) x 2) Min. Dia.

Helical Ramping Angle Calculation: The ramping angle is dependent on size of hole, and the material being machined. Maximum Depth of Cut Calculation

Materialap(doc),max
PUnalloyed Steel / Alloyed Steel0,050,1x Dia.
MStainless Steel0,050,08x Dia.
KCast Iron0,080,10x Dia.
NAluminum0,20x Dia.
SInconel0,03x Dia.
Titanium0,07x Dia.

Example: XER 100NN4-C, machining a hole 18,53mm on Titanium Alloy. Max depth of cut = 0,07 X 10,00

Ramping angle = tan-1 18,53 x π

= 0,70°

Drilling Trochoidal Milling

Feed Correction Capacity End Mill Slot Width Number of Flutes Drilling Diameter (D) Min

20,5 x fz1,00 - 6,001,43 D
30,1 x fz8,00 - 12,001,43 D
4N/A16,00 - 20,001,43 D