Features andapplication of ceramic lapping plates :
Ceramic is oneof the super material used as lapping plate thanks to its high hardness and thermo stability, there is very slight thermoexpansion so operators don’t have to worry abouttemperature change will may immediately affect the flatness of the lappingplate and of cource thepart. Several advantages can get usingceramic lapping plates:
1, Highstability of geometry shape maintaining
2,Very lowplate wear during process
3,Eliminatingall other factors that may cause problem ,for example,for a cast iron lappingplate, any grains or particles or holesinside the plate may cause problems. So theoperator can have a clear direction for process trouble shooting.
4,Much cleanerlapping process than doing with cast iron lapping plate
5,Long termstable process without any special maitain of the plate
Ceramic lappingplate is recommended to be used for the lapping of parts with super requiment of surface finishing as well as flatness, ceramiclapping plate can also work as polishingplates, its super thero stabilitymake it the best polising plates thanall other materials.
Abrasives likewhite alumina and silicon carbide and boron carbid e arerecommended to use on ceramic lappingplate to lapping the parts like GaAs, ZnSn,ZnS , Sic,Sapphire and for some special soft metals, very fine lapping onceramic plate can make a perfect no scratching fine lapped surface, which can easy make ashinning surface by further step polishing.
