Design guidelines


In general, the less we do to the ceramic part after it is sintered,Alumina Ceramic Dome

the less it cost. Here is a list of of the processing after sintering in

order if cost increasing to ceramic part.


Sintering

Grinding

Lapping

Polishing


The different choice of machining also cause the different cost of ceramic part. Below there is a list of machining operations in order of cost increasing to ceramic part.


Surface Grinding

Cylindrical Grinding

Milling or Drilling

Lapping

Hand finishing

High purity alumina ceramic ring



Avoid sharp internal corner and undercut to save the cost and away from the stressriser.

Avoid knife edge features, because the brittleness of the ceramics.

Provide radius and chamfer in each edge to prevent from chipping whenever possible.

Tight tolerance causes expensive cost.



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