Stick Weld

A Stick Weld is when the pieces of metal are held together only by the melted surface coating of the metal. Stick welds show little or no evidence of fusion at the weld interface. This can only occur when using coated metals.

Probable Causes:

	Weld tips are too large.
	Weld current is too low.
	Weld time is too short.

Detecting this condition with Ultrasonic Inspection:
Ultrasonic inspection allows you to non-destructively identify acceptable and defective Weld Nuggets. During ultrasonic inspection, a transducer probe sends sound waves through a weld nugget and the results are displayed graphically. The three conditions that are analyzed from the graph are Attenuation, Spacing, and Interface Echoes.

What a good weld ultrasonic inspection graph looks like:

	Good Weld Attenuation Graph
	Good Weld Spacing Graph
	Good Weld Interface Echoes Graph

What a stick weld ultrasonic inspection graph looks like:

	Stick Weld Attenuation Graph
	Stick Weld Spacing Graph
	Stick Weld Interface Echoes Graph