Quick Look

DensityMelting PointThermal ConductivityElectrical ConductivityCoefficient of Expansion
2.5-6.0 g/cm³1600-3000°C1.5-30 W/m·KInsulator5-10 µm/m·K

About the Material

Materials We Support:

CodeNameColorDensity (g/cm³)HardnessTensile Strength, Yield (MPa)Elongation at Break (%)Heat Deflection Temperature (°C)
ZrO2/White & Black & Beige6.05-6.071000 ~1500 HB200~4000.11700~2200
Al2O3/White3.7-3.971000~2000 HB200~4500.1~0.31500~1700

Advantages:

  1. Wear Resistance: High hardness provides excellent wear resistance, suitable for abrasive environments.

  2. High Temperature Stability: Ceramics maintain their strength and structure at high temperatures.

  3. Chemical Resistance: Resistant to most acids, alkalis, and solvents, making them ideal for chemically harsh environments.

  4. Electrical Insulation: Ceramics are excellent electrical insulators, making them useful for electronics and electrical components.

Limitations:

  1. Brittleness: Ceramics are prone to cracking and breaking under mechanical stress or impact.

  2. Machinability: Ceramics are challenging to machine due to their hardness and brittleness, requiring specialized tools and techniques.

  3. Cost: The machining of ceramics can be costly due to specialized equipment and tool wear.

Chemical Composition Table for Ceramics

ElementTypical Composition
Silicon (Si)Varies
Aluminum (Al)Varies
Oxygen (O)High
Other OxidesVaries

Mechanical Machining Properties Table for Ceramics

PropertyValue
Machinability RatingLow
Cutting Speed (m/min)5-15
Tool Wear ResistanceLow
Coolant RequirementEssential
Surface Finish QualityModerate

Design Parameters Table for CNC Machining Ceramics

Maximum   Bulid Size (mm)Minimum Wall   Thickness (mm)Minimum   Assembly Gap (mm)Tolerance (mm)Minimum End   Mill Size (mm)Minimum Drill   Size (mm)
850x500x50010.01Minimum 0.0110.5

Industry Applications and Case Studies for CNC Machining Ceramics

  1. Aerospace Industry:

    • Application: Production of thermal barrier components, heat shields, and insulators.

    • Case Study: An aerospace company used CNC machining to create ceramic heat shields, providing thermal protection for high-speed aircraft.

  2. Medical Industry:

    • Application: Manufacturing of dental implants and prosthetics.

    • Case Study: A medical device manufacturer utilized CNC machining to produce ceramic dental implants, ensuring biocompatibility and durability.

  3. Electronics Industry:

    • Application: Production of insulators, substrates, and protective components.

    • Case Study: An electronics company used CNC machining to produce ceramic substrates for high-power electronic circuits, providing effective electrical insulation.

Frequently Asked Questions (FAQs) about CNC Machining Ceramics

  1. What are the benefits of using ceramics in CNC machining?

    • Ceramics offer high hardness, wear resistance, chemical resistance, and electrical insulation, making them ideal for demanding applications.

  2. Is CNC machining suitable for high-volume ceramic production?

    • CNC machining is effective for prototyping and low to moderate volume production, but high-volume production may require alternative processes such as molding or sintering.

  3. What industries benefit from CNC machining ceramics?

    • Industries such as aerospace, medical, and electronics benefit from the properties of ceramics.

  4. How do ceramics compare to metals in terms of machinability?

    • Ceramics are significantly harder and more brittle than metals, making them much more challenging to machine.

  5. What are the limitations of using ceramics in CNC machining?

    • Limitations include brittleness, challenging machinability, and higher production costs due to specialized tooling.

  6. Can ceramic parts withstand high temperatures?

    • Yes, ceramics can withstand extremely high temperatures, often up to 1500°C or more.

  7. What tolerances can be achieved with CNC machining ceramics?

    • Typical tolerances are ±0.2 mm, depending on the specific requirements of the part.

Parts Made by AutofabX

CNC Ceramics
CNC Ceramics