Welding Joint Design
(148 votes)Welding Equipment
Since, welding joins metals, design for welding is chiefly concerned with joints when to use a joint, how to weld it, where to place it, what to do and what not to do. Selection and preparation of weld joints is an important step in the fabrication of a weldment.
Selection of correct joint design is very essential if welded members are to perform within the load service, corrosive * atmosphere and safety requirements.
Not only must the product have sufficient strength to perform well under the load conditions expected but it must be pleasing in appearance also. Proper joint design is a vital part of a welding procedure because it helps to
- (i) Control distortion.
- (ii) Minimize residual stresses,
- (iii) Facilitate good workmanship,
- (iv)Achieve proper weld strength,
- (v) Reduce welding costs, and
- (vi) Result in greater reliability.
The weld joint design should be such that the welds can be tested nondestructively for necessary quality control, especially if the welds are in pressurized or contaminated and inaccessible areas.
The considerations in joint design include
- (i)safety,
- (ii) service,
- (iii) quality, and
- (iv)cost or economy.
taken from : http://hazwelding.wordpress.com
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