Computer aided manufacturing

Teacher

Gedela Sridevi

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Course Name : Computer  aided manufacturing

Code(Credit) : CUTM1084 (0-2-0)

Course Objectives  

  • Create 2-D geometry and 3-D models using various Commands in Master CAM software.
  • Create part programs for CNC machining, Contour Concept of cutter   compensation using G codes and M codes.
  •  Create tool path and program for 2-D Lathe operations

Learning Outcomes

  • Create 2-D Geometry and 3-D models using various Command in Master CAM software.
  • Identify G-Codes and M-codes for programming
  • Create 2-D tool path and program for 2-D facing , turning , drilling in lathe.
  • Create 2-D tool path and program for circular milling and facing operations.
  • Simulation of CNC programs using Master CAM software.

Course Syllabus

Module I: Introduction to CAM and Identification of toolbars in Master CAM  software  (2 hrs)                                                                            

Introduction to Computer Aided manufacturing and Master CAM. Identification  of sketch toolbars like profile, operations toolbars and using the toolbars to generate the sketch.

Practice-1:  Create a 2D sketch using sketch tool bar and operations tool bar

 

Module II- 3-D models using various Commands in Master CAM software      (2 Hrs)

 

Draw 3-D profiles using various sketch based features like extrude, revolve, Boolean features, rib, slot, groove etc.

 

Practice-2-  Create 3 D model using various commands

 

Module III : Identification and use of  G-code and M code  in programming for lathe (4 hrs)                                                                                          

Functions of G-Code and M-code in lathe  machine  .Selection and use of G-codes and M-codes. Measure tool and work data off set data-X-Z offsets for lathes. Work offsets, length offsets and tool radius for machining center for creating part programming.Cutter compensation.

Practice-3- Create work offset for CNC milling machine using Master CAM.

Practice-4  Create Work off set for CNC lathe using master CAM

 

Module IV: Create 2D tool path for lathe operations                                        (6 hrs)                                                      

2D Tool path generation. Concepts of  Machining: CNC control basics, & coordinate

systems, Selection of tool, tool parameters, Compensations  Program Manager / Creation of 2D tool path for 2D turning , facing ,drilling operations

Practice-5- Create 2D tool path for facing  and turning operation in lathe.

Practice-6- Create 2D tool path for a drilling operation in lathe.

Practice-7- Create 2D tool path for a given job in lathe.

 

 

Module V: Create 2D tool path for milling operations                                            (6 hrs)   

 

Selection of appropriate tool path for  milling operation. Proper machine selection, job setting, tool selection. Selection of appropriate machining tolerance, machining parameters like speed, feed and depth of cut. CNC  Programming 2-D milling, circular milling operations.

 

Practice-8- Create 2D tool path for facing and profile cutting.

Practice-9- Create 2d tool path for circular pocketing.

Practice-10-Create 2D tool path for circular countering.

 

Module VI: Post processing                                                                                      (3 hrs)  

Post  Processing: Generating NC / Nci Files / Editing NC Files / Simulation of tool path.

Practice-11 -Create a 2D tool path for a job  in CNC  milling machine  and simulate it.

Practice-12- Create 2D tool path for a job in CNC lathe machine and simulate it.

 

Module : VII : Transferring Part programming into CNC machine

 

CNC interface with master CAM ,CNC controls and editing on a machine

 

Practice-13 : Transfer master CAM program to the CNC machine  and perform dry run for a job.

 

 

Reference Books:

 

1.      Groover, M.D and simmers ,E.W, CAD/CAM :Computer aided design and Manufacturing ,Person Education India.

2.      Manuals of CAD/CAM software package on CAM module and CNC machine.

 

 Note: 1 credit theory=10 hrs lecture, 1 credit practice/project=12.5 hrs lab/workshop/field work in a semester

 

 

 

 

 

 

 

 

 

Session Plan

Session 1

Introduction to Computer Aided manufacturing and Master CAM.

https://www.youtube.com/watch?v=JrmYZIrcuMs

https://www.youtube.com/watch?v=xXkLRsGMYC0

Session 2

Identification  of sketch toolbars like profile, operations toolbars and using the toolbars to generate the sketch in Master CAM soft ware

Practice- 1:  Create a 2D sketch using sketch tool bar and operations tool bar

 

https://www.youtube.com/watch?v=U_ViGWWpBJA

https://www.youtube.com/watch?v=U_ViGWWpBJA

Session-3

Draw 3-D profiles using various sketch based features like extrude, revolve, Boolean features, rib, slot, groove etc in Master CAM software

Practice-2-  Create 3 D model using various commands

https://www.youtube.com/watch?v=MdKX3QIO4Y0

https://www.youtube.com/watch?v=31_Aps4RrDc

https://www.youtube.com/watch?v=T8oLiQiZNPM

Session-4

Functions of G-Code and M-code . Work offsets, length offsets and tool radius for machining center for creating part programming.Cutter compensation of tool.

Practice-3- Create work offset for CNC milling machine using Master CAM

https://www.youtube.com/watch?v=-2yKKtWKO8M

https://www.youtube.com/watch?v=HmrifcLJRJE

https://www.youtube.com/watch?v=puhqdBREjp8

Session-5

Measure tool and work data off set data-X-Z offsets for lathes

Practice-4 - Create work offset for CNC milling machine using Master CAM.

https://www.youtube.com/watch?v=UlGIcwWAJIw

Session-6

2D Tool path generation. Concepts of  Machining: CNC control basics, & coordinate

systems, , Selection of tool, tool parameters, Compensations  Program Manager.

Practice-5- Create 2D tool path for facing  and turning operation in lathe.

https://www.youtube.com/watch?v=b2F9exUshL8

https://www.youtube.com/watch?v=85zvTj3pvzQ&t=58s

https://www.youtube.com/watch?v=yy0nzCMoPtc

https://www.youtube.com/watch?v=MUsZsVuXso0

Session-7 and 8

Creation of 2D tool path for 2D turning , facing ,drilling operations

Practice-6- Create 2D tool path for a drilling operation in lathe.

Practice-7- Create 2D tool path for a given job in lathe.

https://www.youtube.com/watch?v=HuoyGa0c9TY

https://www.youtube.com/watch?v=EZ0frnoup-I&t=157s

https://www.youtube.com/watch?v=ftWCjZAHib4

Session-9

Selection of appropriate tool path for  milling operation.

Practice-8- Create 2D tool path for facing and profile cutting.

https://www.youtube.com/watch?v=dngBirEaQOA

Session-10 and 11

Proper machine selection, job setting, tool selection. Selection of appropriate machining tolerance, machining parameters like speed, feed and depth of cut. . CNC  Programming 2-D milling, circular milling operations.

Practice-9- Create 2d tool path for circular pocketing.

Practice-10-Create 2D tool path for circular countering.

https://www.youtube.com/watch?v=GIDMTEr75Ng

https://www.youtube.com/watch?v=IoZ5JVt7AxQ

https://www.youtube.com/watch?v=01ykhNSIIZo

Session- 11 and 12

Post  Processing: Generating NC / Nci Files / Editing NC Files / Simulation of tool path.

Practice-11 Create a 2D tool path for a job  in CNC  milling machine  and simulate it.

Practice-12- Create 2D tool path for a job in CNC lathe machine and simulate it.

https://www.youtube.com/watch?v=i7DSz16nhEk

https://www.youtube.com/watch?v=uX8J7FM-aj8

Session-13

CNC interface with master CAM ,CNC controls and editing on a machine

Practice-13 : Transfer master CAM program to the CNC machine  and perform dry run for a job.

https://www.youtube.com/watch?v=All5nr3mNGs

https://www.youtube.com/watch?v=wly74naslMQ

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Our Main Teachers

Gedela Sridevi

Assistant professor
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Assistant  Professor ,School of Engineering and Technology , Centurion University of Technology and Management, Paralakhemundi, Odisha, India. She has over  6 years of teaching and 9 years of industrial  experience in project management of EPC bulk material handling,Turnkey projects..  She  is pursing her  PhD  in Centurion University of Technology and Management in the field of […]