Operator`s manual

Advanced Haas Mill Programming Techniques Training Manual Page 79

Program and tool selection:

Op 1 and Op 2: A 1 ½” Weldon Shank Kennametal index able end mill with three inserts is selected to face

off the ends of the block. According to Kennametal the ideal cutter diameter to part width or cut ratio is

1:1.5. For better tool life ¼ of the cutter diameter should be outside the work piece. This results in a

PA 15650, p.488) Standard carbide 1/2” 90⁰ spot drill and 5/16

jobber length 118⁰ point HSS drill are

used to create the 5/16 thru holes.

Op 3: A ¼” carbide 135⁰ split point screw machine drill and a carbide 4 flute, stub length 30⁰ helix are

used to create the counter bored holes .

Op 4 #29 cobalt screw machine length drill and 8-32 standard tap are used for the back side.

O00005 (Extension Block)

G00 G17 G40 G49 G80 G90 G98

G91 G28 A0

G91 G28 Z0

T1 M06 (1 1/2 IND END MILL)

G90 A90. (INDEX TO A270)

M10

G00 G90 G54 X3.85 Y0.375 M03 S1220 ( 480 FT/MN)

G43 H01 Z1. M08

Z0.1

G01 Z0 F50.

G01 X-0.85 F9.7 (.002/REV)

G00 Z1. M09

G91 G28 Z0 M05

T2 M06 (90 DEG DRILL)

G00 G90 G54 X1. Y0.5 M03 S1020

G43 H02 Z1. M08

G99 G82 Z-0.171 R0.1 F2. P0.2

X2.

G00 G80 Z1. M09

G91 G28 Z0 M05

T3 M06 (5/16 DRILL)

G00 G90 G54 X1. Y0.5 M03 S980

G43 H02 Z1. M08

G99 G83 Z-2.14 R0.1 F3.9 Q0.31

X2.

G00 G80 Z1. M09

G91 G28 Z0 M05

M11

G91 A-180. (INDEX TO A270 DEG)

M10

T1 M06 (1 1/2 IND END MILL)