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Read Article What Is a Root Pass in Welding? Explained
The root pass is the first pass in a joint and the foundation of the weld. Learn why it matters most, how it fits with hot, fill, and cap passes, and why its hard.
Welding Gear Blog - Page 66
Browse our complete collection of auto-darkening helmet reviews, glove tests, protective jacket sizing guides, and welding safety checklists.
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Read Article What Is Duty Cycle in Welding? Explained
Duty cycle is how long a welder can run at a given amperage before cooling. Learn how to read it, why it changes with amps, and how to pick the right machine.
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Read Article What Is Heat Affected Zone (HAZ) in Welding Explained
The heat-affected zone is base metal near a weld changed by heat, often the weakest, most brittle part. Learn what the HAZ is and how to control it.
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Read Article What Is Lack of Fusion in Welding? Causes Explained
Lack of fusion is weld metal that never bonded to the base metal or prior pass. Learn what causes it, how it relates to cold lap, and how it is detected.
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Read Article What Is Metal Fume Fever? Causes and Why Respiratory Protection Matters
Metal fume fever is a flu-like illness from inhaling zinc oxide when welding galvanized steel. Learn its causes, symptoms, and why respiratory protection matters.
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Read Article What Is Plasma Cutting and How Does It Work
Plasma cutting slices conductive metal with a superheated jet of ionized gas. Learn how it works, what gas it uses, and how it compares to laser cutting.
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Read Article What Is Porosity in Welding? Causes Explained
Porosity is gas trapped in a weld as it solidifies, leaving holes that weaken it. Learn what causes porosity in welding and how to prevent it.
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Read Article What Is Slag in Welding? Why It Forms and What It Does
Slag is the hardened flux layer over a weld that shields it while cooling. Learn why slag forms, what it does, how it differs from spatter, and why to remove it.
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Read Article What Is Spot Welding? How It Works and Where It's Used
Spot welding fuses sheet metal with pressure and current, forming a weld nugget. Learn how resistance spot welding works and why cars are full of it.