Questions and Answers
Plug welds and slot welds are identified by the same symbol, except that the plug weld symbol has a diameter symbol placed on its right side.
False
When the weld symbol for plug or slot weld is located below the reference line, the hole is in the arrow side member of the joint.
True
Dimensions that may be applied to the plug weld symbol include size, depth of filling, included angle of countersink, number of welds and their spacing (pitch).
True
The size of a plug weld is located to the right of the weld symbol, and is preceded by the diameter symbol.
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When a specific contour symbol is required, the appropriate contour symbol is shown above or below the weld symbol depending on its arrow side, or other side significance.
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A(n) ____ weld is identified by reference to a detail drawing in the tail of the welding symbol.
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The difference between the plug and slot weld is in the ____ of the hole in which the weld metal is deposited to fuse the two members of the joint.
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The plug weld is made through a(n) ____ hole.
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The slot weld is made through a(n) ____ hole.
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The ____ of a plug weld refers to its diameter in inches at the base of the weld.
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The ____ dimension of a slot weld is located to the left of the symbol.
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The number of welds is shown in ____ below an arrow side of the plug and slot weld symbols or may be specified in the tail of the welding symbol.
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Plug and slot welds are generally finished with a ____ contour.
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If a method of postweld finish is also to be specified, it is placed ____ the contour symbol.
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The ____ drawing shows the member or members that will require joint preparation.
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Study Notes
Plug and Slot Welds Overview
- Plug and slot welds share a symbol, but plug welds include a diameter symbol on their right side.
- Plug welds are indicated by holes in the material, while slot welds have elongated holes.
Symbol Placement and Dimensions
- Weld symbols below the reference line indicate that the hole is on the arrow side of the joint.
- Key dimensions for plug weld symbols include size, depth of fill, angle of countersink, number of welds, and spacing (pitch).
- The size of a plug weld is noted to the right of the weld symbol, following the diameter symbol.
Contour and Tail Specifications
- Contour symbols, when necessary, are positioned above or below the weld symbol, indicating their relevance to the arrow side.
- Slot welds reference a detail drawing in the tail of the welding symbol.
Differences in Hole Shape
- Plug welds utilize round holes for metal deposition.
- Slot welds are formed through elongated holes.
Size and Width Details
- The size of a plug weld refers to its diameter at the base, stated in inches.
- The width dimension of a slot weld is indicated to the left of the symbol.
Count and Finishing
- The number of welds can be specified in parentheses below the arrow side or in the tail of the welding symbol.
- Both plug and slot welds typically feature a flush or convex contour.
- If post-weld finishes are to be noted, this is done above or below the contour symbol.
Section Drawing Significance
- Section drawings illustrate the members requiring joint preparation for welding operations.
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Description
Explore the key concepts of plug and slot welds, including their symbols, placement, and dimensions. Understand the differences between round and elongated holes and the importance of contour specifications in welding. This quiz will enhance your knowledge of welding symbolism and application.
