CNC Lathe Course

Lesson 1 • Workholding Devices and Setup

Explains chucks, collets, and steady rests used to secure workpieces. Proper workholding directly affects part accuracy and operator safety.

Lesson 2 • Machine Startup and Shutdown

Details the correct sequence for powering on, homing, and shutting down the CNC lathe. Reinforces safety and machine longevity from day one.

Lesson 3 • CNC Coordinate System Basics

Introduces the Cartesian coordinate system as applied to lathe axes. Provides the spatial reasoning foundation required for programming.

Lesson 4 • Workplace Safety Protocols

Addresses machine-specific hazards and required personal protective equipment. Connects safe habits to reduced downtime and injury prevention.

Lesson 1 • Cutting Tool Geometry and Materials

Examines insert geometry, rake angles, and tool material grades. Understanding geometry enables correct tool selection for each operation.

Lesson 2 • Turning Tool Types and Applications

Identifies roughing, finishing, threading, and grooving tools and their uses. Matching tool type to operation reduces cycle time and tool wear.

Lesson 3 • Tool Holders and Turret Setup

Covers VDI and BMT tool holder standards and turret station assignment. Correct setup prevents interference and ensures repeatable tool changes.

Lesson 4 • Tool Length Offset and Qualification

Teaches manual and automatic methods for measuring and entering tool offsets. Accurate offsets are prerequisite to dimensional part accuracy.

Lesson 1 • Essential G-Codes for Turning

Covers rapid traverse, linear feed, and dwell codes used in every turning program. Mastery of these codes enables basic part production.

Lesson 2 • Canned Turning Cycles

Introduces fixed turning, facing, and drilling canned cycles to simplify programming. Canned cycles reduce code length and programming errors.

Lesson 3 • Program Verification and Dry Run

Covers graphical simulation, dry run, and single-block execution for program validation. Verification prevents crashes and scrap before cutting begins.

Lesson 4 • Program Structure and Syntax

Explains program numbers, block format, and word address syntax. A solid syntax foundation prevents controller alarms and parsing errors.

Lesson 1 • Subprograms and Macro Basics

Introduces M98/M99 subprogram calls and parametric macro variables for reusable code. Subprograms reduce redundancy and support family-of-parts programming.

Lesson 2 • Taper and Radius Turning

Programs linear tapers and arc moves using G01 and G02/G03 for contoured profiles. Accurate contour programming is essential for functional and aesthetic parts.

Lesson 3 • Threading Cycles and Parameters

Covers single-pass G32 and canned G76 threading cycles for external and internal threads. Correct thread parameters ensure fit and function of threaded features.

Lesson 4 • Multiple Repetitive Roughing Cycles

Teaches G71 stock removal and G72 facing roughing cycles with finish pass calls. These cycles automate multi-pass roughing and reduce programming time.

Lesson 1 • First-Article Inspection Procedure

Guides students through measuring the first part against the drawing before production runs. First-article inspection catches setup errors before they create scrap.

Lesson 2 • Part Datum and Reference Features

Covers datum selection from engineering drawings and transferring datums to the machine. Proper datum alignment ensures parts meet design intent.

Lesson 3 • Soft Jaw Preparation and Use

Teaches boring soft jaws to match workpiece geometry for accurate, repeatable clamping. Soft jaws are essential for second-operation and thin-wall setups.

Lesson 4 • Work Coordinate Systems on a Lathe

Explains G54–G59 work offsets and how they relate to the machine zero point. Correct offset assignment is the foundation of repeatable part positioning.

Lesson 1 • Hand Measurement Tools

Covers micrometers, calipers, and bore gauges used for turned-part inspection. Correct technique and calibration ensure measurement traceability.

Lesson 2 • Thread Inspection Methods

Teaches go/no-go gauging, thread micrometers, and optical comparators for thread verification. Thread inspection confirms fit before assembly.

Lesson 3 • Surface Finish Measurement

Explains Ra and Rz surface roughness parameters and profilometer use. Surface finish directly affects part function, sealing, and fatigue life.

Lesson 4 • Statistical Process Control Basics

Introduces control charts, Cp/Cpk indices, and sampling plans for production monitoring. SPC enables proactive quality control rather than reactive inspection.

Lesson 1 • Vibration and Chatter Suppression

Diagnoses chatter sources and applies speed, feed, and tooling remedies. Eliminating chatter improves surface finish and extends tool and spindle life.

Lesson 2 • Tool Life and Wear Monitoring

Identifies flank wear, crater wear, and built-up edge and their effect on part quality. Monitoring wear enables timely insert changes before part rejection.

Lesson 3 • Cutting Speed and RPM Calculation

Derives surface footage formulas and converts to RPM for given diameters. Correct cutting speed maximizes tool life and surface finish quality.

Lesson 4 • Machinability of Common Materials

Compares machinability ratings of steel, aluminum, stainless, titanium, and cast iron. Material properties dictate tool grade, speed, and coolant strategy.

Lesson 1 • Cycle Time Analysis and Reduction

Teaches time-study methods and identifies non-cutting time for elimination. Shorter cycle times increase machine utilization and profitability.

Lesson 2 • Process Troubleshooting and Root Cause

Applies systematic root-cause analysis to dimensional, surface, and tool-life problems. Structured troubleshooting reduces scrap and unplanned downtime.

Lesson 3 • Preventive Maintenance and Machine Care

Details daily, weekly, and periodic maintenance tasks to sustain machine accuracy and reliability. Consistent maintenance prevents costly unplanned breakdowns.

Lesson 4 • Multi-Operation and Second-Op Turning

Addresses planning and executing second-operation setups to complete parts in minimal setups. Reducing setups lowers cost and improves datum consistency.