Applications
FAQ (Frequently Asked Questions)

Issue

Cause

Solution

Cracks

Excessive number of layers

Check hardness and determine maximum number of strands

Incompatibility between base material and coating

Check compatibility of materials

Rapid lifting of electrode

Use proper technique

Material base casting defects

Change base material

Base material lamination

Change base material

Exertion

Check operating conditions and type of coating

Fatigue

Change base material or repair

Poros

Insufficient protection

Change electrode, using screens

Dirty or contaminated material basis

Cleaning materials / substitute

Inadequate welding technique

Use proper technique

Filler material contaminated

Change electrode

High arc length

Reduce arc length

Unstable Arc

Review causes and solutions

Trouble on

Review causes and solutions

Interruption arc

Review causes and solutions

High amperage

Reduce amperage

 

Solid inclusions

Dirty or contaminated material basis

Cleaning materials / substitute

Lack of slag cleaning between steps

Clean slag

Slag in arc interference

Replace electrode

Insufficient amperage

Increase amperage

Inadequate welding technique

Use proper technique

Inadequate preparation of the board

Correct design

 

Incomplete fusion

Inadequate preparation of the board

Correct arrangement of components

Insufficient amperage

Increase amperage

Fast advance speed

Reduce feed rate

 

Undermined

Inadequate welding technique

Use proper technique

High amperage

Reduce amperage

High arc length

Reduce arc length

Ratio between the electrode diameter and material thickness based incorrect

Substituted by one electrode smaller diameter

Improper feed rate

Feed rate control

Unstable Arc

Improper connections made

Check connections

Flux irregular

Replace electrode

Inadequate power source

Check machine characteristics

Improper rating

Set amperage

Skill Welder

Check welder skills

Trouble on

Insufficient amperage

Increase amperage

Inadequate power source

Check machine characteristics

Improper connections made

Fix connections properly

Material Dirty basis

Clean base material

Adhesion of slag

Lack of slag cleaning between steps

Use proper tools for cleaning

Incorrect design of the joints

Correct design

High amperage

Reduce amperage

Excessive heat parts

Cool materials

Excess splatter

High amperage

Reduce amperage

High arc length

Reduce arc length

Parts distortion

Restriction of components

Modify welding sequence

Excessive heat parts

Cool materials

Incorrect design of the joints

Correct design

Forms incorrectly cord

Inadequate welding technique

Use proper technique

Inadequate preparation of the board

Correct arrangement of components

Interruption arc

Current and improper polarity

Use CE and correct polarity (depending on the type of electrode)

VAC and VDC insufficient

Use power supply with adequate capacity

Heating electrodes

Technical ignition and reignition poor

Prevent the electrode from sticking

High amperage

Reduce amperage

Lack of clamping

Tap and use clamping tools

Inadequate preparation of the board

Correct arrangement of components

Placental cord

Inadequate number of cords

Check No. of maximum allowable cords

Electrode incorrect for the type of wear

Selecting electrode according to wear and hardness

Heating and inadequate cooling

Check type of electrode to determine temperatures