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Module 1: Machine Tool Fundamentals

Overview

This module introduces the core concepts of machine tool operation, including lathe and mill anatomy, axis conventions (X, Y, Z), spindle speed calculations, and cutting tool geometry. Understanding these fundamentals is prerequisite to safe and accurate operation.

Learning Objectives

  1. Identify major components of a metal lathe (headstock, tailstock, carriage, bed, chuck)
  2. Identify major components of a vertical milling machine (head, quill, table, vise)
  3. Understand axis conventions for both machines (lathe: X radius, Z length; mill: X, Y, Z)
  4. Calculate spindle speed (RPM) based on material, tool diameter, and cutting speed (SFM)
  5. Explain tool geometry (rake, clearance, cutting edges)
  6. Select tool material (HSS, carbide) and coating based on application

Module Structure

  • Slide 1: Lathe Anatomy & Component Function
  • Slide 2: Milling Machine Anatomy & Layout
  • Slide 3: Axis Conventions & Coordinate Systems
  • Slide 4: Spindle Speed Calculation (RPM = SFM × 3.82 / Diameter)
  • Slide 5: Cutting Tool Geometry & Material Selection

Assessment

  • Identification quiz: Lathe and mill components
  • Calculation: RPM selection for given material and tool diameter
  • Tool geometry analysis: Rake, clearance, and cutting edges
  • Hands-on: Set spindle speed and verify with tachometer

Time Allocation

  • Instructor Delivery: 3 hours
  • Hands-on Machine Familiarization: 1 hour
  • Self-Study & Assessment: 1 hour
  • Total Module Time: 5 hours

Prerequisites

  • General shop safety awareness
  • Basic algebra (for RPM calculation)

Resources

  • Operating metal lathe and vertical mill
  • Machine anatomy reference diagrams
  • Cutting speed reference table (SFM by material)
  • Cutting tool samples (HSS, carbide, coated)
  • Tachometer (for RPM verification)
  • Safety glasses, hearing protection

Module Version: 1.0 Created: 2026-03-15