Fabrication of circular end micro slots using micro ball-end milling

Abstract

Circular end slots are extensively utilized in micro-fluidics due to its improved hydraulic and thermal performance. Present work targets the efficient fabrication of circular end slots on copper by micro ball-end milling. However, due to its complex cutting mechanism, size effect and tool tip rubbing effect its process parameters and their effects on cutting forces, surface roughness and profile accuracy with single and multi pass are to be investigated. Present work suggests proper parametric combination for the minimization of cutting force and surface roughness. Profile accuracy is also verified by measuring the dimensions of the machined micro slots and found to be in good agreement.