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Causes of solidification cracking, porosity, and changes in toughness and hardness in laser welds are described.
Weldability concerns with these steels are described.
Causes of, and ways of avoiding, flashovers are presented.
Ways to avoid the oxidation of the root bead and adjacent HAZ during welding of stainless steels (heat-tint) and the...
Precautions to avoid hydrogen cracking and ensure satisfactory weld properties are presented.
Causes of, and means of avoiding, these problems are presented.
The roles of materials used to line the base platen are described.
Suitable microjoining techniques for platinum are listed.
The distinction based on filler metal melting temperature is presented.
Guidance is offered, with warnings that the situation is not currently settled.
Things to consider when choosing between these welding processes are set out.
Standards relating to the calculation of allowable stress are briefly discussed.
Repair of imperfect resistance spot welds is discussed.
Application of 'P' numbers and 'S' numbers is discussed with reference to welding procedure qualification.
Examples of ceramic to metal friction welds are presented.
The situation for thermoplastic and for thermosetting types of adhesive is explained briefly.
Guidance is given on making a welded lap joint using friction stir welding.
Use of friction welding in irradiated environments, in high vacuum and underwater is briefly discussed.
Conditions for successful friction welding underwater are outlined.
The suitability of friction welding for joining Co and Ni superalloys in similar and dissimilar joints is addressed.
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