Cutting Chapter 7 Flashcards
Regardless of which end of the reference line the arrow line is on, info on the reference line is always read from —-
left to right
Basic types of weld joints 9
Butt Lap Corner T-edge Flanged Butt Flanged Corner Flanged T Flanged Lap Flanged Edge Joints
Used on drawings, projects specifications, and welding procedure specifications to convey the design specifications for welds.
Welding Symbols
The horizontal reference line with an arrow at one end.
Base for all welding symbols.
Can be on either side of the reference line.
Points to the location to which the welding symbol applies
Arrow Line
The welding symbol describes the what 3 things?
Type of weld
Size
Surface Finish
The opposite end of the reference line is used for ——that aids in making the weld.
Information
The opposite end of the reference line has it’s own special place on the symbol.
F
When the weld symbol is on both the top and bottom of the reference line, the information applies to both sides of——
The joint or surface to which the arrow is pointing
Weld made in a corner
Fillet
The depth to which the groove penetrates into the base metal
Groove Preparation
When does no size need to be shown in groove preparation?
When the groove preparation extends all the way through the joint
Where is the length of a groove weld shown?
To the right of a groove symbol,
The weld extends the full length of the joint when…
There is no dimension on the right side of the groove-weld symbol.
If a root opening is required, the root opening dimension of a groove weld will be shown where?
Shown inside the symbol.
The root opening is how many inches?
1/8
The root opening is shown on only the what side?
Why?
arrow-side symbol
Because it is common to both grooves
Used to convey special instructions that apply to the welding symbol
Supplemental symbols that follow
A small flag is placed where the arrow meets the reference line when
the weld indicated by the welding symbol is to be made at location other than that of the initial construction
When complete penetration is required from one side of a joint and root reinforcement is desired you use what symbol
Melt through symbol
Melt through symbol can be used to specify what
the amount of melt through
Where is a melt through symbol placed?
Opposite a groove weld symbol on the reference line
