Scies à fil diamanté

What Are Diamond Wire Saws?

A scie à fil diamanté is a precision cutting machine that uses a diamond-abrasive wire as the cutting tool.
The wire—typically made from a high-strength steel core coated with diamond particles—cuts by abrasive grinding, allowing it to process hard, brittle, and high-value materials that are difficult to machine with conventional blades.

Diamond wire saws rely on a continuous wire running between multiple guide wheels. As the wire moves at high linear speed, the embedded diamond particles remove material through micro-grinding. This cutting principle provides:

  • Very narrow kerf width

  • Reduced cutting forces

  • Lower material stress

  • Cleaner, smoother surfaces

  • Compatibility with fragile or crystalline materials

Diamond wire saws are widely used in semiconductor materials, optics, ceramics, graphite, stone, and composite materials, where precision and low damage are essential.

Types of Diamond Wire Saws

Diamond wire saws can be classified into two primary categories based on their drive mechanism and wire configuration.

1. Reciprocating Diamond Wire Saw

These systems use a long-length wire, typically 200 m to 30 km, wound on a spool.
The wire travels in a back-and-forth motion, requiring reversing direction during operation.

Characteristics:

  • Large cutting quantity with multi-wire design

  • Wire tension and motion reversal introduce minor vibration

  • Common in photovoltaic silicon slicing and large-scale stone cutting

  • Requires periodic wire rewinding and tension adjustments

Typical Applications:

  • Solar-grade silicon wafers

  • Stone slabs


2. Continuous Diamond Wire Loop Saw

A circular, closed-loop diamond wire of 2–10 m is mounted on the machine without the need for reversing.
Unlike traditional reciprocating wire saws, scies à fil diamanté sans fin operate in a single continuous direction, eliminating vibration and achieving superior cutting accuracy.

Characteristics:

  • Short wire length

  • Stable single-direction motion

  • Suitable for compact, high-precision cutting systems

  • Supports contour cutting and small-part slicing

  • Faster linear speed (80m/s)

Typical Applications:

  • Verre optique

  • Céramique

  • Sapphire components

  • Precision graphite parts

 

Key Technologies in Endless Diamond Wire Saws

1. Endless Loop Design

  • No reversing motion

  • Uniform abrasive engagement

  • Lower vibration amplitude (<3 μm)

  • Longer tool life compared to long-length wires

2. High Wire Speed (60–80 m/s)

High linear velocity produces clean, fine surfaces with minimal cutting marks.

3. Constant Tension Control

Servo-regulated tension ensures smooth wire engagement and prevents micro-cracks in brittle materials.

4. Cold Cutting Process

Low thermal load avoids:

  • Optical coating delamination

  • Thermal stress

  • Surface discoloration

  • Micro-fracture zones in ceramics or sapphire

Applications Across High-Value Materials

Applications of Diamond Wire

Silicon & Semiconductor Materials

  • Low-damage slicing for research wafers

  • Suitable for thick ingots and brittle structures

Sapphire & Optical Crystals

  • Ideal for LED substrates, optical components, windows

  • Smooth surface with minimal edge chipping

Optical & Coated Glass

  • Excellent for multilayer coated optics, filters, diffusers

  • Cold cutting avoids coating burns or peeling

Graphite & Carbon Materials

  • High removal rate with stable surface finish

  • Multi-wire options available for volume production

Ceramics & Carbides

  • Compatible with alumina, zirconia, SiC

  • Reduces micro-crack depth and improves dimensional accuracy

Magnetic Materials (NdFeB / Ferrite)

  • Suitable for slicing NdFeB, SmCo, and ferrite blocks

  • Stable wire engagement prevents edge chipping and magnet cracking

  • Ideal for precision cutting of small magnet pieces or multi-block arrays

  •  

Loop Diamond Wire Saw Models

Petite scie à fil diamanté d'établi

  • Longueur maximale de la pièce (mm) : aucune limite
  • Hauteur maximale de la pièce (mm) : 75

Scie à fil multiple DIamond pour plaquettes de silicium

  • Longueur maximale de la pièce (mm) : 490
  • Largeur maximale de la pièce (mm) : 300
  • Hauteur maximale de la pièce (mm) : 300

Scie à fil CNC pour la découpe du verre

  • Longueur maximale de la pièce (mm) : 200
  • Largeur maximale de la pièce (mm) : 200
  • Hauteur maximale de la pièce (mm) : 200

MACHINE À SCIER LE FIL DIAMANTÉ SANS FIN DE HAUTE PRÉCISION

  • Longueur maximale de la pièce (mm) : 400
  • Largeur maximale de la pièce (mm) : 400
  • Hauteur maximale de la pièce (mm) : 350

Machine de découpe de contours à commande numérique

  • Longueur maximale de la pièce (mm) : 200
  • Largeur maximale de la pièce (mm) : 200
  • Hauteur maximale de la pièce (mm) : 250

Scie à fil diamantée CNC de table

  • Longueur maximale de la pièce (mm) : 150
  • Largeur maximale de la pièce (mm) : 150
  • Hauteur maximale de la pièce (mm) : 150

Scie à fil à prisme

  • Longueur maximale de la pièce (mm) : 400
  • Largeur maximale de la pièce (mm) : 400
  • Hauteur maximale de la pièce (mm) : 375

Équipement de coupe de fil diamanté pivotant

  • Longueur maximale de la pièce (mm) : 400
  • Largeur maximale de la pièce (mm) : 400
  • Hauteur maximale de la pièce (mm) : 375

Machine à scier le fil pour couper le graphite

  • Longueur maximale de la pièce (mm) : 600
  • Largeur maximale de la pièce (mm) : 600
  • Hauteur maximale de la pièce (mm) : 600

MACHINE À SCIER LE FIL DE QUARTZ DE GRANDE TAILLE

  • Diamètre maximal de la pièce (mm) : 2000
  • Hauteur maximale de la pièce (mm) : 600

MACHINE À COUPER LE FIL DE VERRE DE QUARTZ

  • Diamètre maximal de la pièce (mm) : 600
  • Hauteur maximale de la pièce (mm) : 400

Machine à couper le fil diamanté de grande taille

  • Longueur maximale de la pièce (mm) : 2500
  • Largeur maximale de la pièce (mm) : 1300
  • Hauteur maximale de la pièce (mm) : 1300

Each model supports adjustable feed rate, tension monitoring, and customizable fixtures (magnetic base, vacuum table, or custom jigs).

Videos of Different Electroplated Diamond Wire

Playlist

7 Vidéos

Frequently Asked Questions (FAQ)

Q1. What is the difference between traditional diamond wire saws and endless wire saws?
Traditional diamond wire saws normally has a multi-wire structure to cut same product with a large quantity,  endless wire saw normally has a single wire structure which can cut different product type such as complex contour, 3D shape or other precision products.

Q2. How long does the endless diamond wire last?
Typically 30–100 hours, depending on material hardness, coolant flow, and feed pressure.

Q3. Can the same diamond wire be used for all materials?
No. Wire diameter and grit size must be matched to the material:

  • 0.3 mm for brittle material.

  • 0.4–0.6 mm for ceramics or composites

  • 0.6-0.8 for graphite.

Q4. What coolant do you recommend?
White cutting oil for crystal glasses and metals; water-based coolant for certain material;  city water also acceptable if the material requires.

Q5. What surface quality can be achieved?
Ra 1–2 μm, depending on wire diameter, grit size, and feed rate.

Q6. What maintenance is required?
Daily cleaning, regular guide wheel inspection, tension calibration, and wire replacement once abrasive degradation appears.

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