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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.
Welding Gear Blog - Page 61
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 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 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 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 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.
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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.
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Read Article What Is Weld Penetration? Full vs Partial Penetration Explained
Weld penetration is how deep a weld fuses into the joint. Learn full vs partial penetration, what causes lack of penetration, and how to test it.
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Read Article What Is Weld Undercut? Causes Explained
Undercut is an unfilled groove at the weld toe that thins the joint and starts cracks. Learn what causes weld undercut, how to prevent it, and how much is acceptable.
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Read Article Where to Buy Welding Boots Online: Retailers, Red Flags, and Real Picks
The boot that arrived looking perfect on screen had a fake ASTM sticker and a sole that delaminates in month two. It happens. Online welding boot shopping has a...