MetFab - Air Products Welder's Handbook - Flipbook - Page 56
Quality of cut
The aim is to produce a cut with:
Sharp edge
Kerf width
Smooth edge
• a uniform gap (kerf)
• clearly defined edges
• smooth faces
• no adhering slag
No slag bridge
Operating techniques
Manual cutting is used across many
industries including ship building
and repair, recycling and automotive/
machinery repair and maintenance.
It is difficult to achieve a uniform cut
with manual techniques. Variations in
travel speed and nozzle-to-plate distance
give irregular cut faces.
Improved results can be obtained by
using guides for straight lines and radius
bars for circles.
With good quality cuts, both pieces
should separate from each other cleanly.
52
