Welding Metallurgy Training
This course equips you with essential welding metallurgy knowledge for shafts and flanges. Explore how heat input, microstructure changes, machining, and residual stresses cause cracking, and master prevention strategies including optimised procedures, filler metals, preheat, PWHT, and thorough inspections for dependable welds that stand the test of time.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Gain practical insights into welding metallurgy to minimise cracking, manage hardness, and boost weld reliability. Understand thermal effects on microstructure, hydrogen and stress-induced failures, and implement preheat, post-weld heat treatment, consumable choices, joint designs, machining practices, and testing to avoid defects and prolong part lifespan.
Elevify advantages
Develop skills
- Control weld hardness by adjusting microstructure to avoid cold cracking in shafts.
- Prevent hydrogen cracking through effective preheat management, diffusion control, and low-hydrogen consumables.
- Minimise weld and machining stresses with optimised joint design, toe finishing, and proper sequencing.
- Conduct weld failure analyses by choosing appropriate tests, mapping hardness profiles, and interpreting fracture surfaces.
- Select welding processes and fillers to match AISI 4140 shafts for optimal strength and toughness.
Suggested summary
Before starting, you can change the chapters and workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
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