Ceramic Surface Roughness Processing

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Ceramic roughness processing

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The surface roughness is the protruding peak and concave valley with a lot of unevenness left on the surface of ceramics after forming and sintering. It must be processed through the ceramic processing equipment such as internal and external circular grinder and centerless grinder.

The surface with matching requirements or relative motion requirements on ceramic parts is indicated by Ra value.The smaller the Ra value, the higher the surface quality and the higher the processing cost.The larger Ra value should be selected as far as possible to reduce the cost when meeting the use requirements.

Surface roughness machining methods:
1. Rough machining surface: planing and milling are used for non-contact surface, such as chamfering and drilling
2. Processing of inner hole surface: using polishing machine, internal grinding equipment, etc
3. Most smooth surface (mirror) : grinding, mirror grinding, ultra-fine grinding, etc

Machining accuracy

Dimensional accuracy	Up to 0.001mm
finish	Highest possible mirror
concentricity	Up to 0.003mm
parallelism	Up to 0.002mm
The inner hole tolerance	The minimum machinability is 0.005mm
Straight flute	The narrowest machinable groove width is 0.1x100mm
The thickness of the size	Minimum machinability to 0.02mm
The screw thread	Minimum machinable internal thread M2, no limit on external thread
cylindricity	Up to 0.004mm
The linear tolerance	Up to 0.001mm
The smallest aperture	The minimum processing capacity is 0.07mm

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