Page 126 - Aluminum_Machining_catalog_2023

USER GUIDE
INTERCHANGEABLE HIGH PRECISION REAMING HEADS

Setting Methods

There are two optional setting methods - comparison
micrometer and setting device. Comparison micrometer
with dial gauge, although a low cost solution and readily
available for small workshops, is prone to damaging
the cutting edge and therefore not recommended.

Using a Comparison Micrometer
Set the micrometer to the correct diameter using the
precision blocks. Adjust the frontal diameter and back
taper by turning the adjustment screw clockwise.
The front diameter should be larger than the rear
diameter by approximately 0.015 mm.(0.6 µin).

Using a Setting Device
ISCAR’s mechanical setting device enables easy,
quick and accurate adjustment. Due to its modular
construction, it can be used for standard, special
and more complicated reamer adjustments.
Setting Device Located Between Centers
• shorter setting time
• modular system
• higher accuracy
• no risk of damaging the cutting edge

H-REAM Cutting Conditions

The cutting conditions in the table below should be used to start a new application.
Optimal conditions for a specific application should be evaluated by examining
the results and changing the machining conditions accordingly.
Lead A=15°/3° L3 Lead B=30°/3° L1.3
(Reaming Allowance = 0.1-0.3) (Reaming Allowance = 0.1-0.3)
Cutting Speed
Cutting Speed Vc [m/min]
Vc [m/min]
Material No. Feed

Material
21-22 aluminum-wrought alloys PCD [mm/rev] Rake [ ° ] Carbide PCD
12
160-200
0.1-0.3
23-25 aluminum-cast alloys please ask 0.1-0.3 12 160-200 please ask
26-28 copper alloys 0.1-0.2 0 80-100
29-30 non metallic 0.1-0.3 0 10-70
Lead D=30°/3° L0.6 Lead C=75°/3° L0.55
(Reaming Allowance = 0.1-0.2) (Reaming Allowance = 0.2-0.4)
Cutting Speed Cutting Speed
Vc [m/min] Vc [m/min]
Material No. Feed Rake Feed

Material
150-250
21-22 aluminum-wrought alloys [mm/rev] [ ° ] Carbide PCD [mm/rev] Rake [ ° ] Carbide PCD
12
12
0.05-0.2
0.15-0.3
110-200
23-25 aluminum-cast alloys 0.05-0.2 12 180-200 please ask 0.15-0.3 12 150-250 please ask
26-28 copper alloys 0.05-0.2 0 80-100
29-30 non metallic

124 ISCAR