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Weld preparation may be carried out by thermal cutting or machining. Seam edges (groove faces) prepared by thermal cutting shall be finished by machining (e.g. grinding) if a detrimental effect on the welded joint as a result of the cutting operation cannot be ruled out. Welding edges of steel castings and for- gings shall
The selection of the proper joint type depends on a number of factors, such as joint thickness and material, desired physical properties in the finished joint, size of the pieces being welded, accessibility of the joint, fit-up obtainable, available edge preparation equipment, number of pieces to be welded, and specifications of
prepared primarily for the fabricator's engineering and drafting personnel. The welding engineering standards typically include: (a) Illustrated profiles of each typical joint intended for use, showing: (i) The type of joint (eg, butt, lap, tee, corner, edge);. (ii) The type of weld;. (iii) The geometry of the preparation and fit-up;.
Sketch a welding symbol and identify the components. KEY TERMS. 87. Chapter 5. Welding Joint Design,. Welding Symbols bevel chamfering edge preparation faying fillet weld flange weld gouging groove welds intermittent. J-groove nondestructive out-of-position outside corner joint plug weld radius reinforcement root.
For thicker joints, the edge of each member of the joint must be prepared to a particular geometry to provide accessibility for welding and to ensure the desired weld soundness and strength. The opening or gap at the root of the joint and the included angle of the groove should be selected to require the least weld metal
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Edge Preparation. Factors which influence choice of edge preparation. - Thickness. - Material. - Welding process. - Extent of penetration required. - Welding distortion. - Cost
Full penetration butt welds are formed when the parts are connected together within the thickness of the parent metal. For thin parts, it is possible to achieve full penetration of the weld. For thicker parts, edge preparation may have to be done to achieve the welding. There are nine different types of butt joints: square, single V
21 Apr 2009 While designers need some basic knowledge of welding processes, equipment, materials, and techniques, their main interest is in how to transfer forces through welded joints most effectively and efficiently. Proper joint design is the key to good weld design. The loads in a welded-steel design are
Joint Types. The American Welding Society defines a joint as. “the manner in which materials fit together." As shown in. Figure 6-1, there are five basic types of weld joints: • Butt joint. • T-joint. • Lap joint. • Corner joint. • Edge joint. Joint Preparation. Weld joints may be initially prepared in a number of ways. These include:.
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