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Customized Alumina Machining Ceramic Parts and Components intricately formed shapes

  • Very good electrical insulation.
  • Moderate to extremely high mechanical strength.
  • Very high compressive strength.
  • High hardness.
  • Moderate thermal conductivity.
  • High corrosion and wear resistance.
  • Good gliding properties.
  • Low density.
  • Operating temperature without mechanical load 1,000 to 1,700°C.
  • Bioinert and food compatible.
Availability:
Quantity:
  • 01056

  • HaoRui

  • custom01001

99 Alumina Ceramic Custom Finishing


Machining Ceramic Parts and Components

Machining ceramic parts and components involves shaping and finishing ceramic materials using various cutting tools and techniques. Ceramics are hard, brittle, and have low fracture toughness, making them challenging to machine compared to metals. However, due to their exceptional properties such as high temperature resistance, wear resistance, and corrosion resistance, ceramics are widely used in various industries, including aerospace, automotive, medical, and electronics.


The machining of ceramics requires specialized equipment and techniques to overcome their inherent brittleness and achieve precise results. Some of the commonly used machining processes for ceramics include:

  1. Grinding: This is the most common method for machining ceramics. It involves using abrasive wheels or belts to remove material and achieve the desired shape and surface finish.

  2. Diamond Turning: This process utilizes single-point diamond cutting tools to achieve high precision and surface quality. It is often used for machining complex shapes and features.

  3. Electrical Discharge Machining (EDM): EDM is a non-contact machining process that uses electrical discharges to erode material from the workpiece. It is particularly useful for machining intricate shapes and features that are difficult to achieve with conventional machining methods.

  4. Laser Machining: This process uses a focused laser beam to melt and vaporize material from the workpiece. It is suitable for high-precision cutting and drilling of ceramics.

  5. Waterjet Machining: Waterjet machining utilizes a high-pressure stream of water mixed with abrasive particles to cut and shape ceramic materials. It is a versatile process that can be used for a wide range of materials and thicknesses.



Properties of Alumina material (Al2O3)


Property
Item
95% Al2O3
99% Al2O3
99.8%Al2O3
Unit
Mechanical Characteristics
Color
White
light yellow
Ivory

Bulk Density
3.7
3.85
3.93
g/cm3
Water Absorption
0
0
0
%
Bending Strength
300
310
370
MPa
Compressive Trength
2,300
2,400
2500
MPa
Elastic Modulus
320
340
390
GPa
Fracture Toughness
3~4
3~4
4
MPa m1/2
Weber Coefficient
12
12
12
m
Vickers Hardness
1,400
1,600
1850
HV 0.5
Thermal Characterics
Coefficient of Line Thermal
Expansion
7~8
7~8
7~8
10-6 K-1
Thermal Conductivity
20
29
32
W/mK
Thermal Shock Resistance
(Put in Water)
250
200
280
ΔT °C
Max Working Temperature
1,500
1,600
1700
°C
Electrical Characteristics
Volume Resistance At 20°C
>1014
>1014
>1014
Ωcm
Dielectric Strength
15×106
15×106
15×106
V/m
Dielectric Constant
9
10
10
εr
One MHZ Dielectric Loss Angle
at 20°C
0.0004
0.0002
0.0001
tanδ
Chemical Characteristics
Nitric Acid (60%) 90°C
0.1
0.1
0.05
24H WT Loss mg/cm2
Sulphuric Acid (95%) 95°C
0.3
0.34
0.22
Caustic Soda (30%) 80°C
0.9
0.95
0.04


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Founded in June 2006, Shenzhen Haorui IndustriaI Technology Co.,Ltd. is a professional enterprise engaged in R&D, manufacturing and sales of non-standard industrial ceramics, hard alloys (tungsten steel) and various metal and non-metal precision machinery parts.

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