CNC Machinist

Teacher

SUDEEP KUMAR SINGH

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Certificate Courses

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Course Name : CNC Machinist

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

Course Description 

  • Produces machined parts by programming, setting up, and operating a computer numerical control (CNC) machine; maintaining quality and safety standards; keeping records; maintaining equipment and supplies. The course type is practice mode only.
  • 10th pass candidates are eligible for the course.
  • Practice is  6 hours per week in campus only.
  • After successful completion of the course certificate will be awarded by the university. This course has huge job opportunity.

Learning Objectives

  • Evaluate programming assignment based on critical thinking and problem solving skills. Become a good communicator and effective team member.
  • Practice manufacturing of simple objects on CNC turning centers that meet the part specification
  • Practice manufacturing of simple objects on CNC machining centers that meet the part specification
  • Prepare parts with complex operations including tapping, countersinking, counter boring, and threading.
  • Illustrate common problems with tooling and fixtures in CNC machines.

Learning Outcomes

  • Explain applications and advantages of CNC machines and technology
  • Demonstrate and explain various CNC control Calculate technological data for CNC machining
  • Understand the importance and use of PPE’s
  • Prepare and understand line program for various profiles Identify and set parameters for various simulators
  • Prepare programs , demonstrate , simulate and operate CNC lathe and milling machines for various machining operations
  • Define and explain Modern CNC systems and explain its importance in manufacturing

Course Syllabus

Module I: introduction to CNC technology & programming                                           

Introduction to CNC terminology – CNC machines controls. History & development of CNC technology.
Conventional Vs. non-conventional machine tool. Numerical control on CNC machine tools CNC control and CNC Control and types of CNC control Calculation of technological data for CNC machining. CNC clamping system.

 

Expt1: Identification of different parts of CNC lathe including data input

Expt2: Identification of different parts of CNC mill including data input

 

Module II: Drawing interpretation                                                                                   

Basics of Engg. Drawing, identifying feature from sketch and operation from feature

Expt3: Practice on CNC controller using on-screen simulation for generating different profile

 

Module III: CNC Turning                                                                                                      

Plan and optimize programs for CNC turning operations. Calculate parameters like speed feed etc. and set a references for the various operations. Prepare operation and operation sequence for the lathe operations like turning, grooving etc. Prepare & set CNC lathe operations and test run programmed Execute program and inspect simple geometrical forms / standard parts Use of various PPE’s on CNC lathe machine

Expt 4-7: Machining of complex shape cylindrical objects with parameter selection, machining. (at least 4 exercises)

 

Module IV: CNC Milling                                                                                                      

Plan and optimize programs for CNC Milling operations. Calculate parameters like speed feed , depth of
cut etc. and set a references for the various operations. Various methods of work process like edge
finding block center etc. Prepare & set CNC Milling operations and test run programmed. Execute program and inspect simple geometrical forms / standard parts. Use of various PPE’s on CNC milling machine

 

Expt 8-11: Machining of complex shape prismatic objects with parameter selection, machining. (at least 4 exercises)

 

Module V: Modern CNC systems                                                                                     

Introduction to advanced CNC systems: Computer Aided Part Programming (CAPP), it’s application using Solidworks/MasterCAM. comparison of manual part programming and CAPP for a simple component, Automatic Tool Changer, Automatic Pallet Control, Automatic Storage & Retrieval Systems.

 

Expt 12: Machining of manual part programming and CAPP for a simple component

 

Text Books:

  1. Programming of CNC machines, by Ken Evans
  2. CNC Programming Handbook by Peter Smid
  3. NC Control by Kundra Rao, Tewari

Reference Books:

  1. https://cache.industry.siemens.com/dl/files/554/74475554/att_56792/v1/PGsl_0313_e n_en-US.pdf
  2. G codes, M codes Handbook, by Mazak Corporation, sources:
    1. available at Mini Tool Room, Parlakhemundi campus, CUTM
    2. https://gist.github.com/anonymous/f14c73a7174bf8a43f0c970817897454

 

Course outline Prepared by;  Sudeep Kumar Singh                     Date:21/12/2020

Source of reference; 1. curriculum PG Dploma Tool Desgn and CAD/CAM-level-8

  1. Quora.com

Session Plan

Session 1

Identification of different parts of CNC lathe including data input

youtube link1

youtube link2

Session 2

Identification of different parts of CNC mill including data input

youtube link 3

Session 3

Practice on CNC controller using on-screen simulation for generating different profile

youtube link 4

Session 4

Writing simple code and test on controller for CNC lathe

youtube link 5

Session 5

Writing simple code and test on controller for CNC mill

youtube link 6

Assignment

To be given by the subject teacher based on the content covered.

Session 6

programming canned cycles for simple profile

youtube link 7

Session 7

Machining of programmed exercise on CNC lathe machine

youtube link 8

Session 8

Machining of programmed exercise on CNC milling machine

youtube link 9

Session 9

Programming for complex shape cylindrical objects with parameter selection, machining(at least 3 exercises)

Session 10

Programming for complex shape prismatic objects with parameter selection, machining(at least 3 exercises)

Session 11

comparison of manual part programming and CAPP for a simple component

youtube link 10

Project Report:

Based on the below case studies develop a presentation product to identify skills gained during the training. Specifically identify the process/institutional changes required for the CNC operations.

Case Study-1:

https://www.youtube.com/watch?v=_IA0QD_AuV4&feature=emb_logo

Case Study-2

https://www.youtube.com/watch?v=IqGakWMXS1w

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    SUDEEP KUMAR SINGH

    Assistant Professor in Mechanical Engg. Dept.
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    Sudeep currently working as Assistant Professor in Mechanical Engg. Dept, Centurion University of Technology and Management, bears a long experience of 12+ years in teaching and research. Prior to that he also has worked in manufacturing industry like Apollo Tyres Ltd(Vadodara Plant), Project Technologists Pvt. Ltd. and Vishav Components Sourcing India Pvt. Ltd. He has […]