PFM NC |
Nachi Machining Technology considered the primary factors
of energy conservation, noise reduction, floor space, and
high precision, in the search for developing more efficient
machine tools. Their quest resulted in the PFM NC Roll Forming
Machine.
Nachi Machining Technology has been a world leader in the
roll forming machine market. Our technical expertise with
the design and manufacture of these machines and rolling racks
has enabled us to develop the PFM. This vertical roll forming
machine utilizes a servomotor in place of hydraulic cylinders
to provide greater control of the rolling process.
Advantages of this Design
- Smaller footprint - Approximately 25% less floor space
- Quiet operation - 75dB compared to 80 - 90 dB of conventional
machines
- Energy efficient - 66% less energy than conventional hydraulic
machines
- Improved quality - Step control of the roll forming speed
raises product quality process.
Flexibility
The PFM is extremely versatile due to the NC controller and
Servo motor drive. The roll forming speed can be varied at
any point during the rolling cycle, which helps accommodate
various materials. With easy changeover of the PFM, many different
forming conditions can be achieved.
The combination of servo motors and a ball screw method results
in a much smaller hydraulic power unit. As a result, we have
reduced noise and energy consumption, along with the floor
space needed for rolling machines.
The Rolling Process
The variable speed process is used to manufacture precision
screws, splines, and worm gears in a few seconds. The variable
rolling speed improves part quality because it makes it possible
to slow the forming racks at the time of contact with the
workpiece. This reduces impact, Minimizes oscillation, and
prevents slippage. The result is a reduction in the accumulated
pitch error.
Applications
Industries - Automotive, Truck, Marine, Electric Motor, Appliance
and Off-Road Components - Transmissions, Steering, Suspension,
Engine Parts, Electric Motor Shafts, Spline Shafts, Appliance,
and Appliance Parts
Geometries - Involute Spline, Involute Serrations, Threads,
Oil Groove, Worms, Knurls, Helical Involute Splines
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