Diamond (PCD) Milling Tools for Graphite Material Processing

26 May 2024
Introduction to Graphite
  Graphite, a crystalline form of carbon, possesses exceptional properties such as lubricity, chemical stability, high-temperature resistance, low thermal expansion coefficient, excellent processability, electrical conductivity, thermal conductivity, and plasticity.
  These attributes make graphite indispensable in various industrial applications.
Graphite Applications
  Graphite's versatility is evident in its extensive applications:
- Graphite Electrodes
- Graphite Batteries
- Graphite Molds
- Graphite Crucibles
- Graphite Rotors
- Graphite-based Products: Items like piston cups, sealing rings, and bearings.
  Carbon products made from graphite find use in generators, motors, communication equipment, and more, with most electrode materials being graphite-based.
Challenges in Graphite Processing
  Graphite's extensive use spans machinery, metallurgy, chemical industries, and national defense. Despite its utility, processing graphite poses significant challenges due to its:
- Complex Part Structures
- High Dimensional Accuracy Requirements
- Surface Quality Demands
  Graphite's hard and brittle nature leads to severe tool wear when using ordinary tools. This can result in workpiece cracking, edge breakage, and corner chipping, complicating the processing.
PCD Milling Cutters: The Solution to Graphite Processing
Polycrystalline diamond (PCD) milling cutters are revolutionary for processing graphite products like electrodes, crucibles, and molds. Here’s why PCD milling cutters stand out:
1. High Hardness and Wear Resistance
For effective high-speed milling of graphite, the tool material must significantly surpass graphite in hardness.
Diamond, the hardest known material, ensures exceptional wear resistance. Tools such as CDW025 and CDW302 diamond grits provide unparalleled durability.
PCD Cutting Tools
2. Superior Strength and Toughness
PCD tool materials boast high strength and toughness and can withstand substantial cutting forces, vibrations, and impacts.
By combining polycrystalline diamonds with carbide bases, PCD tools achieve high hardness and toughness, minimizing the risk of brittle fractures.
3. Extended Service Life and Cost Efficiency
Ordinary tools struggle with graphite, leading to rapid wear, high costs, and inefficiency.
In contrast, PCD tools offer high hardness and durability, ensuring a long service life and high processing efficiency. This significantly reduces overall costs by saving on tool replacements and minimizing downtime.
PCD Insert
The adoption of diamond (PCD) milling cutters in graphite processing represents a significant advancement.
These tools not only enhance processing efficiency but also reduce costs, making them the ideal choice for high-speed milling of graphite.
Embracing PCD milling cutters can lead to superior performance and cost savings in graphite-related industries.
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