Course11210331229 lectures
Laser Based Manufacturing
Prof. Shrikrishna N. Joshi · IIT Guwahati
About
This is a basic course on applications of laser technology in manufacturing. The subject laser technology has a very wide range of applications in the product development, manufacturing, surface engineering, and instrumentation. The course emphasizes the fundamental concepts of the laser technology viz. principle of working, characteristics, types, monitoring and control. There is a comprehensive coverage of physical concepts, process characteristics, mathematical formulations along with examples of various laser based manufacturing processes such as of laser machining (cutting), laser forming, laser welding, laser surface treatment and laser based additive manufacturing. There is a state-of-the-art description of newer and advanced applications of the lasers in industry. This course will be very useful to the students, practicing engineers and researchers. After completion of the course, the students will have a strong foundation on laser technology and will be able to apply the basic principles, process characteristics in the practical scenarios.
Intended audience: B. Tech., M. Tech. and Ph D students of Mechanical / Manufacturing / Production/Industrial Engineering, practicing engineers in small and medium scale industry and tool rooms
Prerequisites: Should have knowledge of fundamental manufacturing processes.
Lectures
Week 1: Introduction
- Lec 1: Lasers in Manufacturing: Importance and Applications
- Lec 2: Fundamentals of Laser Technology
- Lec 3: Laser System: Construction and Types
Week 2 : Laser Based Material Removal
- Lec 4 : Principle of Operation, Types of Laser Cutting, and Kerf Geometry
- Lec 5 : Types of Lasers in Material Removal, Process and Performance Parameters
- Lec 6 : A Case-study on Cutting a Circular Part using CO2 Laser Machine
Week 3: Laser Based Welding
- Lec 7 : Mechanisms of Laser Welding Part-I
- Lec 8 : Mechanisms of Laser Welding Part-II
- Lec 9: Effects of Process Parameters during Laser Welding and Study of Defects in Weld Beads
- Lec 10: A Case Study on Welding of Mild Steel Sheets using 2.5 kW CO2 Laser Machine
Week 4: Laser Based Material Forming
- Lec 11: Material Forming and Fundamentals of Laser Forming
- Lec 12: Mechanisms of Laser Forming
- Lec 13: Process Parameters and their Effects on the Performance of Laser Forming
Week 5: Laser Based Surface Treatment
- Lec 14: Surface Treatment and Application of Lasers
- Lec 15: Laser Surface Hardening
- Lec 16: Laser Surface Alloying
- Lec 17: Laser Cladding
Week 6: Laser Based Additive Manufacturing
- Lec 18: Additive Manufacturing Techniques
- Lec 19: Laser Scanning Stereolithography
- Lec 20: Selective Laser Sintering and Selective Laser Melting
- Lec 21: Process and Performance Parameters of Laser Based Additive Manufacturing Techniques
Week 7: CNC Technology and Lasers in Automation
- Lec 22: Lasers in Manufacturing Automation
- Lec 23: CNC for Laser Based Manufacturing
- Lec 24: CAD for Laser Based Manufacturing
Week 8: Advancements in Laser Based Manufacturing
Syllabus and materials
At NPTEL, as the course publishes them.
Credits and licence
- Institution
- IIT Guwahati
- Department
- Mechanical Engineering
- Teacher
- Prof. Shrikrishna N. Joshi
- Level
- Undergraduate
- Language
- English
- Subjects
- Engineering
- Source
- NPTEL
- Licence
- CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
- Attribution
- NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
- Who can watch
- NPTEL gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed