Machining Operations by Ed Red Objectives Introduce machining operations terminology

• Machining Operations
• by
• Ed Red

• Objectives
• Introduce machining operations terminology
• Introduce machining efficiency measures
• Reconsider cutting parameters as they apply to efficiency
• Review a machining efficiency example
• Consider modern machine operations (papers)

• Machining terms
• Chatter – interrupted cutting usually at some frequency
• Down milling – cutting speed in same direction as part feed
• Up milling – cutting speed in opposite direction as part feed
• Peripheral milling – tool parallel to work
• Face milling – tool perpendicular to work
• Ideal roughness – geometrically determined roughness
• Machinability – machining success determined by tool life, surface finish
• Optimal machining – parameter choices that increase machining throughput or reduce operational costs

• Machining operations on lathe
• (other than normal turning)

• Chamfer

• Taper

• Contour

• Form

• Facing

• Cutoff

• Threading

• Boring

• Drilling

• Knurling

• Two types of milling operations

• Peripheral

• Face

• Face milling operations

• Facing

• Partial facing

• End milling

• Profiling

• Pocketing

• Surface contouring

• Face milling movements

•