Unit 1 To study basics of Computer Aided Manufacturing

4 lecture hours

• • Definition of CAM, Evolution of CAM. • scope and role in modern manufacturing. • Concept of NC, CNC, DNC and their integration with CAM
• Selection Criteria for CNC Machine. • Benefits
• limitations and industrial applications of CAM

Unit 2 To study CNC Machine Tools and Drives

8 lecture hours

• • CNC Turning and Machining Centers: Features
• Axes nomenclature
• work holding devices and Tool holding devices
• Automatic tool changer (ATC) • CNC controller architecture: MCU, feedback loops
• interpolation systems
• Sensors used in CNC machines (position
• Types of Controller and comparison

Unit 3 Demonstrate constructional features of CNC

6 lecture hours

• • Demonstrate CNC machines and their operations. • Identify major parts of CNC and draw sketches. • Write specifications of CNC taken for demonstration. • Sketch important tool holders. • Tabulate sensors / feedback devices with type
• specification and purposes used on CNC taken for demonstration. • Sketch display console
• Also sketch symbols used on display console with meaning of each. • State interfacing standards used. • Functions of keys on CNC Console

Unit 4 CNC Part Programming Fundamentals-

4 lecture hours

• • CNC Co ordinate System • Types of CNC programming Format • Basic G Code and Their Function • Basic M Code and Their Function • Cutting Parameter • Turning Part Programming Basics • Milling Part Programming Basics • Demonstration of Turning and Milling Program on CNC Simulator Program Name: Diploma Engineering Level: Diploma Branch: Mechanical Engineering (CAD/CAM) Subject Code: DI04065031 Course/Subject Name: Fundamentals of CNC Programming

Unit 5 CNC Turning Part Programming – I(Basic Turning Programming)

8 lecture hours

• Teacher will assign minimum Four part drawings covering the following:  Facing  Straight  Turning  Step turning  Taper turning  Circular interpolation (concave/convex profiles) Students will: 1
• Sketch each component with dimensions. 2
• Prepare CNC part programs using ISO-standard G and M codes. 3
• Indicate work zero
• tool offsets, and tool path on the sketch. 4
• Simulate each program using available CNC simulation software. 5
• Load any one CNC Program and manufacture part on a CNC turning Centre. 6 10 % 5 CNC Turning Part Programming – II (Advanced Turning Programming) Teacher will assign minimum Four part drawings covering:  Canned cycles for drilling
• or threading  Thread cutting using G32/G76 (or equivalent controller cycles)  Use of subroutine
• macro statement
• or loop for repeated features Students will: 1
• Prepare CNC part programs using ISO G and M codes including cycles/subroutines. 3
• Mark work zero
• Simulate the programs using CNC simulation software. 5
• Load any one CNC Program and manufacture part on a CNC turning Centre

Unit 6 CNC Machining Centre Part Programming – I (Basic Milling) Teacher will assign minimum Four part drawings covering

6 lecture hours

• Face milling and straight-line milling 2
• Circular interpolation (convex/concave contours) 3
• Use of tool length offsets and work coordinate offsets (G54/G55 etc.) Students will: 4
• Draw each part with proper dimensions
• Program Name: Diploma Engineering Level: Diploma Branch: Mechanical Engineering (CAD/CAM) Subject Code: DI04065031 Course/Subject Name: Fundamentals of CNC Programming 5
• Prepare CNC milling programs in ISO format with tool change commands. 6
• Indicate work zero
• tool path, and machining sequence

Unit 8 Load any one CNC Program and manufacture part on a CNC

• Machining center. 7 CNC Machining Centre Part Programming – II (Advanced Milling) Teacher will assign minimum Four part drawings covering: 1
• Pocket milling (rectangular/circular) using canned cycles or multi-pass strategies 2
• Contour milling with circular interpolation and fillet radii 3
• Pattern drilling
• peck drilling, and tapping cycles 4
• Multi-tool machining and tool change sequencing Students will: 5
• Sketch each component with dimensions. 6
• Prepare ISO-format CNC programs including all required cycles. 7
• Identify and mark work offsets
• tool length offsets, and tool path. 8
• Simulate each program using available CNC simulation software

Unit 9 Load any one CNC Program and manufacture part on a CNC

10 lecture hours

• Machining Center. 8 14 % 8 Demonstration of CAD/CAM integration: • Demonstrate CAD / CAM integration. • List interfacing standards. • Teacher will assign part drawings
• Minimum four drawings (Two for Turning and Two for machining centre). • Student would : i
• Generate CNC code for assigned drawing using any CAM software e.g
• Autodesk Fusion 360 / SolidCAM (for SolidWorks) / MasterCAM / NX CAM / EdgeCAM / CATIA Manufacturing Module). ii
• Insert the code in CNC machine and prepare the part