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Welding of Advanced High Strength Steels for Automotive Applications

  • Course level: Beginner

Description

Welding of Advanced High Strength Steels for Automotive Applications.

The use of advanced high strength steels (AHSS) is increasingly preferred in automotive applications due to improved crash energy management and enhanced strength-ductility combinations, resulting in greener and safer vehicles. The weldability of AHSS is generally poorer than conventional steels due to the high alloying contents required to obtain a multi-phase microstructure. This course is aimed to discuss the (i) role of alloying elements in stabilizing multi-phase microstructures of AHSS, (ii) the effect of weld thermal cycles on the evolution of microstructures, and (iii) weldability of AHSS.
INTENDED AUDIENCE: Final year bachelor’s and master’s students in Metallurgy, Mechanical, Automobile, and Production Engineering. Industrial personnel working in automotive and steel-making industries.

What Will I Learn?

  • Week 1: Introduction to the physical metallurgy of advanced high strength steels
  • Week 2: Introduction to welding processes in automotive industries (Advanced Gas Metal Arc, Resistance Spot, and Laser Welding Processes).
  • Week 3: Welding metallurgy of advanced high strength steels – Effect of welding thermal cycles on the stability of phases, solidification behavior, segregation
  • and hot cracking susceptibility.
  • Week 4: Mechanical properties of advanced high strength steel weldments – Tensile shear testing, HAZ softening characteristics, the role of modified weld
  • thermal cycles (post pulsing and post-weld heat treatments) to improve the mechanical properties

Topics for this course

20 Lessons

Welding of Advanced High Strength Steels for Automotive Applications

Introduction to the course, Introduction to physical metallurgy of steels00:00:00
Martensitic transformation, Introduction to modern automotive steels00:00:00
Introduction to modern automotive steels00:00:00
Introduction to advanced high strength steels00:00:00
Introduction to Dual Phase Steel and TRIP Steel Heat Treatments00:00:00
Process Characteristics of Resistance Spot Welding – Part – I00:00:00
Process Characteristics of Resistance Spot Welding – Part – II00:00:00
Principles of Resistance Spot Welding (RSW)00:00:00
Introduction to Welding Processes in Automotive Industries00:00:00
Thermal and Mechanical Processing of TRIP and Hot Forming Steels00:00:00
Methodologies to Improve the Weldability of Advanced High Strength Steels00:00:00
Quantification of Microstructural Constituents in Automotive Steel Welds Part – II and Mechanical Pr00:00:00
Quantification of Microstructural Constituents in Automotive Steel Welds Part – I00:00:00
Elemental Behaviour During Welding of Advanced High Strength Steels00:00:00
Microstructural Evolution During Welding of Advanced High Strength Steels00:00:00
Welding Metallurgy of Advanced High Strength Steels – Part – I00:00:00
Principles of Gas Metal Arc Welding – Part – I00:00:00
Principles of Gas Metal Arc Welding – Part – II00:00:00
Introduction to Laser Beam Welding – Part – I00:00:00
Introduction to Laser Beam Welding – Part – II00:00:00
High Strength Steels
Free

Enrolment validity: Lifetime

Requirements

  • Final year B.E/B.Tech students or Graduates of Metallurgical/Mechanical/Automobile/Production Engineering, Basic knowledge of steel physical metallurgy and welding processes.