Page 239 - yt

Counterbore
239

YIH TROUN ENTERPRISE CO.,LTD

Point Point Point Point
4 In 1 Counter Bore Program Description
Starting Point

CNC No.G83(G98) CNC No.G83(G99) • The G83 cycle or peck drilling is for deep drilling or milling with chip breaking. The retracts in this cycle clear the hole of chips and cut off any long stringers (which are common when drilling in aluminum). This cycle takes a Q number which represents a "delta" increment Program: G83 X_Y_ Z_A_R_L_Q_. It is an error if: The Q negative

Peck drilling (CNC No.G83) 1 1 along the Z-axis. not necessary in cast iron machining.

Recommended cutting speed, Vc(m/min), Feed, fz(mm/tooth).The effective
F20
- - - - - - - -
Grades E
Recommended Cutting Data And Insert Grade
B350/C350 B350/C350 B350/C350 B350 B350 B350 F30 F30 -

(D2) M 16-20 0.07 0.09 0.07 0.09 0.06 0.08 0.05 0.07 0.07 0.09 0.06 0.08 0.13 0.16 0.12 0.15 0.11 0.14

Feed,Fz (mm/ tooth) 140° (D2) (D2) 12 10 0.07 0.06 0.09 0.08 0.07 0.06 0.09 0.08 0.06 0.05 0.08 0.07 0.05 0.04 0.07 0.06 0.07 0.06 0.09 0.08 0.06 0.05 0.08 0.07 0.13 0.12 0.16 0.15 0.12 0.11 0.15 0.14 0.11 0.10 0.14 0.13

ute. (D2) 8 0.06 0.08 0.06 0.08 0.05 0.07 0.04 0.06 0.06 0.08 0.05 0.07 0.12 0.15 0.11 0.14 0.10 0.13 • While using for spot drill, RPM and FEED can be increased to 50%.
no. of teeth is calculated with 1 fl Cutting Speed Material Vc(m/min) group 50-70 1-2 50-70 3 45-60 4-5-6 25-30 7 35-45 8-9 35-40 10-11 70-90 12-13 60-80 14-15 100-150 16-18 238 YIH TROUN ENTERPRISE CO.,LTD