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Home > Products > Servo Control Friction Welding Machine FF-NS series
FF-NSseries --- Servo Control Friction Welding Machine

| Servo Control Friction Welding Machine FF-NS series
Following the successful development of a phase adjusting friction welding machine with servo control of spindle rotation in 1999, NITTO SEIKI succeeded in developing servo control of forge force in 2000.

Since then, many achievements and repeated improvements have been made and FF-NS series has been developed as it is now.  It is a “Supreme” machine which is suitable for those users who wish to have higher precision, higher quality and more stable operations.
 
Sample of the phase control joining of the square material and hexagonal material

Sample of the phase control joining of the square material and hexagonal material
 

Video of phase adjusting friction welding
Phase adjusting

 Phase adjusting video shoot by high-speed camera
Video Please take a look at the video of phase adjusting friction welding.
Video Please take a look at the super slow-motion video of phase adjusting at the time when spindle rotation stops.

Features
Servo control of spindle rotation

 Servo control of forge force
Servo control of spindle rotation By controlling spindle rotation with a servo motor and original control program, stable stop angle and stop time are secured. As a result, high-precision angle control is achieved.
 (Stop angle accuracy:±0.2)

No consumables such as brake pads are needed since conventional hydraulic brakes are no longer necessary.
Servo control of forge force By controlling forge force with 1)servo motor, 2)ball-screw structure and 3)original control program, high-precision position control and stable drive are achieved without being subjected to oil temperature.

Forge force measured by load cell is feedback controlled by original program, and as a result smoother drive is achieved.

Advantages of servo control 

Stable operation without being subjected to oil temperature.

High-precision weld is possible.

Angle control expands the range of the application of friction welding such as to phase adjusting workpiece.

Servo control reduces more carbon dioxide emissions than hydraulic control dose.

Better energy-saver.

No oil leakage >>> Improved working environment.

No waste oil >>> Environment-friendly.

Feedback control of forge force enables smooth drive at low speed range.

Uniform output under any conditions (temperature, humidity and so on)

Downsized hydraulic unit >>> Space-saving and low noise.

Specification table
Horizontal type
Model

FF-
----- 20IINS 　30IINS 45IINS ----- ----- ----- -----
Welding capacity Mild steel round-bar

(mm)
----- ø6-ø20 ø10-ø30 ø15-ø45 ----- ----- ----- -----
Rotating side 3-jaw chuck
Dia. x L

(inch)
(mm)
----- 6"
ø20x250		 8"
ø35x350		 10"
ø50x500		 ----- ----- ----- -----
Fixed side 2-way vise clamp
Dia. x L      (mm)
----- ø30x500 ø60x750 ø80x750 ----- ----- ----- -----
Spindle Maximum rotation speed

(rpm)
----- 3000 2000 2000 ----- ----- ----- -----

Under angle control 

 Maximum rotation speed

(rpm)
----- 2000 2000 1500 ----- ----- ----- -----

Stop angle accuracy

----- ±0.2° ----- ----- ----- -----
Drive system

----- Servo control (variable) ----- ----- ----- -----
Forge force Max

(KN)
(TON)
----- 53.9
5.5		 137.2
14		 215.6
22		 ----- ----- ----- -----
Table slide Drive system

----- Servo motor ＋ Ball-screw ----- ----- ----- -----
Stroke

(mm)
----- 250 300 300 ----- ----- ----- -----
Position detection

----- Servo motor position encoder  ----- ----- ----- -----
Oil cooling system standard

----- Inverter controlled oil cooler ----- ----- ----- -----
Weight

(TON)
----- 2 4 7 ----- ----- ----- -----
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