Write the part program to drill the holes in the part in fig

Write the part program to drill the holes in the part in figure shown and as outlined in the CNC tool and operations sheet. Set the part origin (X0, Y0) at the lower left-hand corner and Z0 at the top of the part. The machining is done in the number sequence as indicated in the figure. Part program should be in the word address format using absolute positioning

Reference point (5 Tool change position (machine home) 10 56 Metric 45 33 24.0 3 holes (thru) 11 115 26 15 At 460 06.72 2 holes (thru) Part origin 10 I I I I I CNC Tool and operations Sheet Tooling Tool Speed (rpm) Operation Feed (mm/min) 2200 60 Drill (3) 4 holes 24-mm drill 06.7-mm drill 1800 80 Drill (2) B6.7 holes

Solution

O1234

G75 Z100

G17 G21 G40 G55 G80 G90 G94

T01 M03 S2200 ;TOOL#1 DIAMETER=4mm

M08

G0 X-460 Y115 Z100

G0 X45 Y15 Z0.5

G01 Z-10 F60

G01 Z0.5 F60

G0 X30 Y26 Z0.5

G01 Z-10 F60

G01 Z0.5 F60

G0 X11 Y26 Z0.5

G01 Z-10 F60

G0 Z100

G0 X11 Y100 ; TOOL CHANGE POSITION

M05

M06 T2 M03 S1800 ;TOOL#2 DIAMETER=6.7mm

G0 Z50

G0 Z1

G01 X22 Y8 Z1 F400

G01 Z-10 F80

G01 Z1 F80

G0 X55 Y48 Z0.5

G01 Z-10 F80

G01 Z-0.5 F80

G0 Z100

G01 X-460 Y115 Z100

M05

M09

M30