1.1 Conventional Methods for Joining
1.1 Conventional Methods for Joining
Joining materials are mechanical, thermal and chemical. Mechanical joining relies on devices such as bolts and rivets, or on the distortion of the material itself, such as folding, press-fitting or shrink-fitting, to secure the components of an assembly. Thermal joining methods for metals include welding, brazing and soldering. There are several thermal methods of plastic welding. Chemical joining methods include adhesive and, for plastics, solvent bonding. Every technique has pros and cons: operation conditions, expense, geometric tolerances and disassembly requirements are just some of the considerations when joining materials together.