Monaghan ELLIOTT Installation And Operating Instructions

ELLIOTT DIAMOND BURNISHING TOOL
INSTALLATION AND OPERATING INSTRUCTIONS
Machine chuck
or collet

Operating Instructions:

Part preparation : 80-100 µ-inch Ra (2.0-2.5 µ-m Ra)
Part hardness : 40 Rc or under. Consult factory for harder
materials
Feed Rate : 0.003-0.004 Inch/Rev or IPR, (0.076-0.100 mm/Rev)
Speed : 200-500 SFM, 750 SFM max, (60-150 M/min, 230 M/min
max). These speeds are in reference to diameter of part.
Common starting values: 0.004 IPR & 500 SFM, (0.10 mm/rev &
150 M/min)
NOTE: Please run a safe speed for your lathe and set up! It is
okay to use less speed than the minimum shown. Consult us for
any questions about operating parameters.
Coolant Required: Use water soluble 6% min concentration
(8-10% is ideal) or straight cutting oil. NEVER run tool without
coolant or oil applied to the part!!

Mounting:

The tools have various shank sizes in both inch and metric.
Extend tool from the machine's tool pocket enough to allow
for proper machine clearances when deflected completely,
approximately 0.200" (5.1 mm) radially. Ensure that the
centerline of the diamond is on the centerline of the part.

Spring Load:

The Elliott S2300-00 diamond burnishing tool has a max working
spring deflection of 0.200" (5.1 mm).
Shank
Workpiece

Tool Setting (ID and OD Surfaces):

Before the tool can be operated, it must be determined how
much spring deflection is required and the proper feed rate.
Softer materials such as non-ferrous metals and soft steels
should not require a lot of deflection (tool pressure) to burnish
properly whereas harder steels and cast irons may require much
more deflection (tool pressure).

Initial Set Up:

Spring deflection should be determined first. With the spindle
turning and coolant applied bring the diamond tip in contact
with the workpiece. Deflect accordingly: for softer materials,
use .025" (0.64mm) per side deflection. For harder materials,
use 0.075" per side deflection (tool pressure).

Tool Setting:

Immediately upon deflection, feed the tool across the surface at
initial starting values. Check finish to determine if acceptable.
If the finish is not smooth enough there are two adjustments:
1) Increase the spring deflection between tool & part. When
increasing the deflection, use 0.025" (0.64 mm) increments each
time. NOTE: At max tool deflection of 0.200" (5.1 mm), there
will be almost 112 pounds (51 kg) of force against the part. Use
caution when applying this much pressure to keep from bending
the part or pushing it from the holding device.
OR (cont'd)
Tool path
TM-61