Machining challenges
A thin frame and extensive material removal increase the risk of distortion. Ventilation-hole accuracy and conductive contact surfaces also need close control.
Manufacturing route
Rough machining; stress relief; datum and finish milling with temporary supports; deburring and cleaning; conductive conversion coating, masking, painting and screen printing.
Key control points
Control the specified flatness of ≤ 0.05 mm, hole-array spacing and position, opening dimensions, and protection of conductive mating surfaces during finishing.
Dimensional and surface inspection
Inspection includes CMM measurements, flatness and hole-array checks, contact resistance, coating adhesion and appearance, and marking position.
The requirements and manufacturing route shown here apply to this project. New components are reviewed against their own drawings and agreed specifications.
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