Welding Blog
Guides, articles and comparisons written for practical welding decisions.
Filtered by #heat-input
Preheating and Interpass Temperature Control Guide
Learn how preheat and interpass temperature welding limits work: why steel is preheated, how minimums are set, where maximums apply, and how to measure them.
Understanding the Heat-Affected Zone (HAZ) in Welding
Learn what the heat affected zone in welding is, how its microstructure forms, what can go wrong in steel, stainless and aluminium, and how to control it.
How to Read a Welding Procedure Specification (WPS)
Learn how to read a WPS: what each section means, how essential variables and heat input limits work, and the mistakes that turn good welds into rejects.
Welding Metallurgy Basics
Learn welding metallurgy basics: heat input, the heat-affected zone, phase changes, hydrogen cracking, preheat, and how to control weld quality.
What Is TIG Welding?
Learn what TIG welding is, how it works, the equipment you need, and beginner-friendly tips to weld cleaner, stronger joints with confidence.