Abstract
This chapter focuses on various welding methods in context to amorphous nylon. Welding methods, which can be considered, are heated tool welding, vibration and spin welding, and ultrasonic welding. The heating or welding times as well as the joining pressure are part dependent and must therefore be empirically determined. Trogamid moldings can in principle be subjected to all known welding processes. For sufficient weld seam strength, the achievement of a correspondingly high melt temperature in the joint area from about 260°C to 310°C is important. Owing to its amorphous nature and its melt toughness, the temperature range is not as critical as in the semicrystalline polyamides. The chapter informs that for good welding results in series manufacture, the observance of small dimensional tolerances in the joint area is very important.
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