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ISCAR offers several plunger options which were designed for deep cavities and high shoulder milling. The tools are very effective and economical for deep machining of slots, straight and sloped walls which require very long tool overhang. The main feature of the plunger tools is that the loads on the machine, tool and workpiece are mainly axial, avoiding bending moments. It is recommended to use horizontal machines with an abundant coolant stream when machining deep cavities. Horizontal tool and cavity orientation allow gravity to enhance chip removal.
HTP
The HTP ...-R-LN16 shell mill plungers are carrying the HTP LNHT 1606 ER – 16 mm tangentially clamped inserts on the frontal face of the tools.
The HTP LNHT 1606 ER insert is: a 16 mm, four cutting edged, tangentially clamped, righthand insert with a positive rake face for reduced load/pressure during machining and better chip removal. The insert orientation on the tool results in excellent flatness.
In addition, the HTP LNHT 1606 ER insert has a rear axial cutting edge that can be used during the retracting movement without chattering.
Features:
● Eliminates the angular retraction movement
● Compensates for the tool’s deviation due to side bending
● Reduces machining cycle time
● Eliminates the need for special CNC programming.
● A precision finish cut can be obtained for better side wall surface finish by employing a controlled rear feed.
Face Milling:
In addition to the plunging operation, HTP ...-R-LN16 shell mill plungers can be used for general face milling applications of up to 3 mm D.O.C
PH
Center cutting plunger that uses a very strong, double-ended insert with 4 cutting edges. The tools have a cylindrical or a CLICKFIT shank option. In case of vertical machining, the PH-A plunger (which has a spiral, drill-like flute) is recommended. This tool type evacuates chips effectively.
PLH
Hollow trepanning plunger that uses single-sided PLMT 13-5 inserts. The hollow tool design eliminates the problem of low cutting speed at the center of the tool. This enables machining at higher feeds and improves tool life.
PLX
A side plunger equipped with standard XCMT 120408TR inserts, featuring a maximum width of cut ae = 11 mm for plunging and a maximum depth of cut ap = 9 mm for tangential milling. Each insert has two cutting edges. The tool is multifunctional for rough plunging operations and light milling or semi-finishing.
With the PLX cutter – with an overhang of up to 3-3.5xD – there is no need for angular retractions! (Normally done in order to avoid insert breakage and scratching the walls of the workpiece during retract pass). The PLX cutter enables faster retraction from the workpiece and significantly reduces machining time and failures. There is no need to apply any special CNC programming for the retract pass.
Operations with very long overhangs are performed by the PLX cutters with only 45° angular retractions. No other cutters will function under such long overhang conditions.
The PLX cutters have a 17° angle built into the insert, which reduces the radial cutting forces and prevents insert breakage. The cutters also have high tooth density, which means that the PLX cutters can run very fast.
All PLX cutters are manufactured with coolant holes for better chip evacuation.
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PLUNGER - User Guide
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New TANGPLUNGE
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TANGPLUNGE - User Guide
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