LFV technology

Take your productivity to the next level

With next-generation processing technology

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About LFV

LFV technology stands for low frequency vibration cutting.

The servo axes are vibrated in the axial direction using
a unigue control technology where by cutting is performed while synchronising
this vibration with the rotation of the spindle.

This cutting method introduces regular "air-cutting" into the cycle,
breaking up of chips into very small pieces making it the optimum processing method
for difficult-to-machine materials.

Which materials is LFV best suited for?
Inconel alloy, titanium, stainless steel, iron, copper, nylon, plastic, and more.

Features

1

A variety of types of machining can be handled

Z axis direction
X axis direction
Taper
Arc
Drilling
Deep hole drilling with an oil hole drill

Finely fragmented chips are discharged smoothly along the flutes in the drill, greatly reducing the number of steps required.

Micromachining to 0.2 mm in diameter
Comparison with the lead (0.5 mm dia.) of a mechanical pencil

LFV makes it possible.

2

Two vibration modes

Mode 1Designate the number of vibrations per workpiece rotation
When fine swarf fragments are required
Mode 2Designate the amount of workpiece rotation per vibration
When high peripheral speed is required for fine machining or deep, small-diameter holes
3

Easy to use

Simply add two lines (start/stop) to your existing NC program to have the NC automatically execute vibration operation.
You can also switch ON and OFF in individual command lines.

LFV command format

Benefits

Conventional cutting

LFV

Minimizes defects and tool damage caused by chips
Keeps machining costs low
Greatly reduces machining downtime due to chip removal
Less need to monitor machining processes means
more unmanned mass production operations

Chip comparison

Remove chips far less frequently
Significantly boost productivity

User feedback

Q.1Did LFV sufficiently break up of chips?

  • Sufficient fragmentation
  • Greatly reduced entanglement

Q.2Did LFV result in fewer momentary stoppages?

  • No longer a need to check for swarf entanglement
  • No change in the number of momentary stoppages
  • No momentary stoppages to begin with

Q.3Was the volume of chips reduced?

  • By 50-90%
  • No real change in collection frequency
  • Not sure due to the use of a chip conveyor

Q.4Are you satisfied with the LFV?

  • More reliable production quality
  • Takes some getting used to, but very effective
  • Getting used to having LFV may actually cause problems
  • We'd like to extend tool life a bit more

Q.5Will you continue to purchase LFV?

  • It is effective for unmanned operations
  • Drastically reduces swarf-related problems
  • We don't need it on every machine
  • Depends on what it will cost

Want proof of this positive customer feedback?

About 60% of the L20s purchased in Japan
are ordered with LFV !

Equipment available with LFV

2014

VC03

Opening up new possibilities in machining technology
with low frequency vibration cutting

The VC03 is Citizen's first machining tool to come equipped with LFV, opening up new possibilities in machining technology. Its compact, space-saving design shortens production lines, while an accuracy-boosting machine configuration carried over from the GN series delivers incredible precision.

2016

L20

Built with a modular design
versatile enough for modern manufacturing

The L20 is our best-selling Cinecom machine and comes in four different models, ranging from a 5-axis machine with excellent cost performance to a high-end machine equipped with B axis and a back spindle Y axis. LFV is available as an optional feature to further expand your machining possibilities.

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2017

L12

Detachable guide bushing comes standard to handle
all small-diameter work with 5-axis control

The detachable guide bushing can be fitted or removed quickly and simply, making it possible to do processing work that once took two machines to accomplish. The L12 does it all. Equipped with a 15,000 min-1 high-speed spindle, 10,000 min-1 rotary tools, and optional LFV, you're ready to take on nearly any type of small-diameter machining tasks.

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MC20

Integrated machining modules for multi-spindle machining
makes the MC20 ready to handle all kinds of process layouts

The MC20 is made up of three machining modules, integrating three single-axis lathes into one machine unit. Customized settings for workpiece IN/OUT and paths help you achieve ideal process distribution and workflow. And of course, all of the modules come with the option of LFV.

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BNA42GTY

Turret and gang tool post open up
rich array of machining possibilities

Innovative structure gives you all the versatility of a turret plus the high speed of a gang tool post, making it possible to mount up to 43 tools. Three-system configuration allows simultaneous machining with up to three tools. Add the option of LFV for a rich array of machining possibilities.

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2018

L32

The L32 features a versatile modular design
capable of handling diameters up to 32 millimeters-the largest in the L Series

The L32 is available in four different models, each with a modular design. The IX and XII models are equipped with a B axis on the gang tool post rotary tool, making it possible to machine angled holes from multiple different angles or simultaneously control contouring along four axes. Add optional LFV to drastically reduce swarf-related issues.

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Contact

We're happy to answer your questions and share more about our products and technologies.
Feel free to contact us by phone or via our online contact form.

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LFV is a registered trademark of Citizen Watch Co., Ltd.