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The purpose of this study was to establish an interference tolerance for micro-scale pin-hole assemblies. Although a few existing studies discussed micro pin-hole assemblies, most of them are on the assembly system or onetime assembly. In the present research, the effect of repetition on pin-hole interference fits was investigated. And an analytical model that describes the results was presented....
These days, more precise machining is needed because of the integration of semiconductor and electric products. Microdrill is a tool for delicate machining such as holes of PCB (Printed Circuit Board). Bad conditions of drill such as vibration caused by eccentricity or increase of thrust force by drill's tip abrasion have bad effects on the quality of PCB circuit or induce fracture of the drill. Therefore,...
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