| Natural Mica Washers and Discs are punched from the smallest to 9 inch outside diameter, both in random and calibrated thickness.
Each mica patterns requires a special precision die to produce clean edged punch parts free from burrs, delaminations and cracks, etc.
Even for the simplest pattern the die must be made of special steel (HSS) suitably hardened (in oil) and tempered, with expert
workmanship and precision equipment. Jig boring machine, high precision grinders, lathe machine, optical measuring equipments,
tool makers, such as: remers hand filling equipments, intricate contour milling hands, master templates, die makers, etc. are some
of the important equipments required for hand filing and finishing of a mica die. The more intricate phase of building mica dies centres
around the cutters, shaving and piercing punches and female die. It is a known fact that making an accurate mica die is a most difficult
task as they are absolutely different than metal sheet, or any other known product. |
