slab and face milling diff

slab and face milling diff - Mechanical Engineering...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Mechanical Engineering Mechanical Technology Technology MET 204 Manufacturing Processes II Milling Processes Dec 14, 2009 Wolfgang J. Sauer What You will learn in this lecture: • Milling process parameters Mechanical Engineering Technology Technology • Types of milling processes » slab milling » face milling » slot milling • Milling cutters - geometry, applications • Work holding devices • Milling machines Mechanical Engineering Technology Technology Video Credits: The video clip on this page was taken from the SME Sampler DVD that accompanies our textbook. Milling - Overview Milling Fundamentals Mechanical Engineering Technology Technology spindle speed [rpm] feed rate [ipm] metal removal rate [in3/min] 12 ⋅ V N= π ⋅D f m = ft ⋅ n ⋅ N MRR = W ⋅ t ⋅ f m Slab Milling Fundamentals Mechanical Engineering Technology Technology approach length [in] cutting time [min] LA = t ⋅ ( D − t ) L + LA Tc = fm Face Milling Fundamentals Mechanical Engineering Technology Technology approach length [in] cutting time [min] W ⋅ ( D −W ) LA = L0 = D 2 L + LA + L0 Tc = fm Mechanical Engineering Technology Technology Conventional versus Climb Cutting Cutting Force in Face Milling Mechanical Engineering Technology Technology This diagram shows the interrupted nature of the milling process. In conventional milling (shown here) the cutter teeth enter the work gradually - the force increases gradually - but exit abruptly. In climb milling the cutter direction is reversed; the teeth enter abruptly and exit smoothly. Examples of Milling Cutters Mechanical Engineering Technology Technology (top) Horizontal Spindle Machine (right) Vertical Spindle Machine Horizontal / Vertical Spindle Horizontal Milling Machines Milling Mechanical Engineering Technology Technology Mechanical Engineering Technology Technology Video Credits: The video clip on this page was taken from the SME Sampler DVD that accompanies our textbook. Work holding Devices Mechanical Engineering Technology Technology Video Credits: The video clip on this page was taken from the SME Sampler DVD that accompanies our textbook. Machining Centers ...
View Full Document

Ask a homework question - tutors are online