MIG burn-through on thin sheet: what to check first
Distinguish a through-opening from distortion and excess penetration, then record thickness, fit-up and local heating before changing settings.
EXPLORE / TECHNIQUES
Techniques.
Preparation, fit-up and troubleshooting for more consistent results.
14 guides
MIG welding spatter: investigate what changed
Learn how to record a sudden increase in MIG spatter, check consumable identity and separate equipment, distance and arc-control questions.
Lack of fusion: why a tidy bead does not prove a bond
Learn what lack of fusion means, why access and travel matter, and how to organise a controlled investigation before changing settings.
TIG end craters: plan the finish before stopping the arc
Understand why a TIG weld can end in a hollow, how current and filler coordination matter, and when a suspect termination needs assessment.
Between-pass slag removal: what to check before welding again
Learn where slag can remain between weld passes, how to organise a cleaning checkpoint and why a clean surface cannot prove internal soundness.
MIG undercut: investigate the groove beside the bead
Learn to recognise possible MIG undercut, record where it appears and investigate setup and movement before changing settings.
WELDING DEVICES / FIELD NOTESSHIELDING / GAS
TIG post-flow: why the gas continues after the arc
Learn what TIG post-flow protects, why timer ranges differ by machine and how to check your setup without guessing a universal setting.
WELDING DEVICES / FIELD NOTESSHIELDING / GAS
MIG gun distance: why the arc changes
Learn how electrode extension, stickout and contact-tip-to-work distance affect a constant-voltage MIG arc—and how to control them.
Magnetic arc blow: why your stick-welding arc pulls away
Understand magnetic arc blow, record a directional arc pull and plan a controlled investigation of the work-return arrangement.
TIG tungsten contamination: when to stop and reprepare
Learn how to recognise likely TIG tungsten contamination, stop safely, reprepare the electrode and avoid chasing unrelated settings.
Low-hydrogen stick electrodes: keep them dry after opening
Learn how to store opened low-hydrogen stick electrodes, separate holding from redrying and handle rods with an unknown exposure history.
MIG wire-feed problems: birdnesting, burnback and slipping
Learn to recognise three common wire-feed symptoms, understand the feed path and record useful evidence before changing settings.
Porosity: troubleshoot the cause before the settings
A structured way to investigate pinholes and trapped gas in a weld.
Thin sheet: plan distortion before the first tack
Fit-up, tacking and welding sequence can matter as much as the current setting.