Ceramic Machining Services
Efficient metal forming process, suitable for the manufacture of high-strength and complex structural parts. Click to learn about our forging, powder metallurgy and other services.
Quality Assurance
ISO 9001:2015 certified to ensure high quality.
Tight Tolerance
Precision control within ±0.010mm.
In-House Workshop
with advanced machinery and experienced team.
Fast Delivery
1 to 10,000 parts in as fast as 3 days.
What is Ceramic CNC Machining?
Ceramic CNC machining is a high-precision manufacturing process that utilizes computer numerical control (CNC) technology to precisely cut, drill, and shape ceramic materials into complex and durable components. Due to the exceptional hardness, wear resistance, heat resistance, and chemical stability of ceramics, as well as their inherent brittleness, machining ceramics is more challenging than processing metals or plastics.
CNC machining supports various ceramic materials and meets the requirements for complex geometries and tight tolerances, making it widely used in aerospace, medical, electronics, and industrial applications. The process employs specialized cutting tools and advanced machining techniques to ensure minimal tool wear, optimal surface finish, and enhanced precision and quality of the final product.
Advantages of CNC Ceramic Machining
High Precision and Complex Shape Machining – CNC machining can meet tight tolerance requirements and accurately manufacture complex ceramic parts.
Cost-effective – Low production errors, less material waste, and reduced manufacturing costs.
Excellent material properties – Ceramics have the advantages of wear resistance, corrosion resistance, high temperature resistance and high strength.
Excellent surface finish – Precision grinding and polishing ensure high surface quality.
Flexible production capabilities – Small batch customization and large-scale production can quickly adjust production.
Wide range of applications – High-demand parts in aerospace, medical, electronics and industrial fields.
Types of CNC Machined Ceramics
Alumina Ceramic (Al₂O₃)
Alumina ceramic is primarily composed of high-purity aluminum oxide (Al₂O₃). It features high hardness, excellent wear resistance, and superior insulation properties. Common applications include circuit substrates, bearings, and artificial joints in the electronics, mechanical, and medical fields.
Boron Nitride Ceramic (BN)
Boron nitride ceramics exist in two forms: hexagonal (h-BN) and cubic (c-BN). They offer outstanding lubricity and high-temperature resistance (up to ~3000°C), making them ideal for high-temperature insulation components, semiconductor crucibles, and lubricating bearings.
Silicon Carbide Ceramic (SiC)
Silicon carbide ceramic is extremely hard, highly heat-resistant (above 1600°C), and has excellent thermal conductivity. It is used in high-performance components such as turbine blades, brake discs, and semiconductor wafer carriers.
Zirconia Ceramic (ZrO₂)
Zirconia ceramic (typically stabilized with yttria) is known for its high strength, toughness, and excellent biocompatibility. It is widely used in dental implants, smartphone back panels, and wear-resistant mechanical parts.
Talc Ceramic
Talc ceramic is primarily composed of talc mineral (Mg₃Si₄O₁₀(OH)₂). It has low dielectric loss and is easy to process, commonly found in high-frequency insulation substrates and household appliance components such as iron soleplates.
Quartz Ceramic (SiO₂)
Quartz ceramic is made from high-purity silicon dioxide, characterized by an extremely low thermal expansion coefficient and high-temperature resistance. It is suitable for optical lenses, semiconductor equipment, and high-temperature furnace linings.
Cordierite Ceramic
Cordierite ceramic (Mg₂Al₄Si₅O₁₈) has an extremely low thermal expansion coefficient and excellent thermal shock resistance. It is commonly used in automotive catalytic converter substrates and high-temperature sensor housings.
Mullite Ceramic
Mullite ceramic (3Al₂O₃·2SiO₂) offers high-temperature resistance and creep resistance. It is widely applied in kiln refractory materials, aerospace thermal protection components, and electronic packaging substrates.
Macor Ceramic
Macor is a machinable glass-ceramic containing fluorphlogopite crystals. It has excellent insulation properties and can be machined with standard tools, making it ideal for precision instrument supports, vacuum components, and insulating parts.
Glass-Ceramic
Glass-ceramic is produced through controlled crystallization (e.g., Li₂O-Al₂O₃-SiO₂ systems), combining the properties of glass and ceramics. It is used for induction cooktop panels, telescope mirrors, and dental restorations.
Graphite
Graphite ceramic (a non-oxide ceramic) is electrically conductive and can withstand extreme temperatures (above 3000°C). It is widely used in electrodes, brushes, high-temperature furnace heating elements, and aerospace ablation-resistant components.
Mycalex
Mycalex is a mica-glass composite material with exceptional electrical insulation and easy machinability. It is commonly used in high-voltage insulating components, electronic packaging, and RF windows for precision applications.
Common Issues in CNC Ceramic Machining
Ceramics are extremely hard, and regular cutting tools wear out quickly. Diamond or CBN tools are required for machining.
Ceramics are brittle, and even slight mishandling during machining can cause chipping or cracks. Cutting parameters must be carefully controlled to avoid excessive force.
Machined ceramic surfaces often have tool marks and burrs, requiring additional polishing to achieve a smooth finish, which increases processing time and steps.
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