Sheet Metal Seam Weld Symbol

Position of symbol weld on arrow side weld on other side.

Sheet metal seam weld symbol.

Arc and gas weld symbols. Back to menu weld all around symbol. Weld symbols are used to indicate the welding processes used in metal joining operations whether the weld is localized or all around whether it is a shop or field weld and the contour of welds. That heat causes distortion and alters material properties.

This chart can range from the largest gauge of carbon steel at 7 which is a decimal of 1793 all the way to the smallest which is 28 at a decimal of 0149. The size of resistance seam welds must be designated as the width of the weld expressed in fractions or in decimals in hundredths of an inch and shall be shown with or without inch marks to the left of the weld symbol fig. When there is no side significance this can commonly be applied using a resistance spot welder which is used widely in sheet metal work. When the symbol is centered on the reference line this indicates that there is no side significance.

The spot weld symbol is simply a circle that may be placed above below or centered on the reference line. Welding can t be done without putting heat into the metal pieces being joined. 3 3 indicates the desired type of weld. Stud weld stud weld symbol with combined dimensions.

This gauge is a system used in order to call out sheet metal similar to that of electricians and wire. If the weld symbol is on the top side weld seam has to be placed on the other side. These basic weld symbols are summarized below and illustrated in figure 3 3. Seam weld symbol size length and pitch of intermittent seam welds strength of seam welds extent of seam weld.

Edge weld symbols are most commonly associated with sheet metal or gauge material. Position of symbol for symmetrical welds only. Weld with flat face. The near side or far side of the weld is a convex surface.

If the weld symbol is on the bottom side the desired weld seam must be placed on the arrow side. A distinction is made between the terms weld symbol and welding symbol. If the weld symbol is on both on the top and on the bottom side of the reference line the weld seam must be placed on both sides. 3 2 is a method of representing the weld symbol on drawings.

The symbol on the near and far side represent the type of weld surface. Resistance seam weld symbols indicating size. If stitch welding is feasible that s usually the way to go but there are times when seam welding yields a better result. The welding symbol fig.

The weld symbol fig. The assembled welding symbol consists of the following eight elements or any of these elements as necessary. The dotted line indicates the weld side. Fabrication designers understand these issues and specify joints accordingly.

3 welding symbol.