Influence of the Initial Fiber Orientation on the Weld Strength in Welding of Glass Fiber Reinforced Thermoplastics

Table 5

Variation of welding parameters in vibration welding.

Factor	Level −	Level 0	Level +
Welding pressure 1 [MPa]	0.5	2.25	4.0
Welding pressure 1 relative to welding pressure 2	1/1	4.5/1	8/1
Welding displacement [mm/s]	0.4	0.9	1.4
Vibration amplitude [mm]	0.5	0.75	1.0