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Simplified Basic Machining Operations Time Estimation Manual

Manufacturing, Engineering and Design

Simplified Basic Machining Operations Time Estimation Manual
Karch C. Polgar
Massachusetts Institute of Technology

This thesis presents a methodology to estimate machining time from a part drawing. Simplified time estimation tables were developed for basic machining operations (sawing, milling, turning, drilling, grinding, sanding, and inspection).

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TOC

• Time estimation tables
• 7" x 12" wet Horizontal / Vertical Band saw
• Manual Vertical Mill
• CNC 3-axis Vertical Mill
• Manual Horizontal Mill
• Manual Turret Lathe
• CNC Turret lathe
• Drill press
• CNC 3-axis grinder
• Belt sander
• Inspection
• The process plan
• Estimating time
• Comparisons
• Sample calculations
• Job shop
• Production CNC
• Production Simple Tools
• Ratchet Housing Production CNC
• Cross Slide Production CNC
• Connecting Rod Production CNC