Abstract: Nylon can be welded by all the processes employed for thermoplastics, such as friction welding and ultrasonic welding. It is recommended that the components should be dry prior to welding, since excessive moisture can reduce the strength of the bond. A study was undertaken to compare nylon 66 and nylon 6 when vibration welded. Unwelded nylon 66 has a higher tensile strength than nylon 6. The maximum service temperature of nylon 66 is also higher than that of nylon 6. Vibration welds made in nylon 66 give higher weld strengths than nylon 6 when tested at elevated temperature regardless of material condition, orientation or displacement. It indicates that increasing weld pressure gives lower failure strengths in both nylon 6 and nylon 66. At higher weld pressures, the final stresses in the material are expected to be higher, resulting in a decrease in the tensile strength of the joint, and at lower pressures, the reverse is true. However, lower pressures lead to longer weld times.
Publication Year: 1997
Publication Date: 1997-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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