Conventional manufacturing processes for plastic products, such as injection molding or extrusion, often limit the achievable component geometries. Therefore, it is necessary to join components in order to generate highly complex geometries. Vibration welding is one way of joining components. This process is frequently used and is characterized by short cycle times, high energy efficiency, and the possibility of joining large components. In vibration welding, plastic components are heated by an oscillating friction movement of the joining surfaces, then plasticized and subsequently welded together. The joining of three-dimensional seam geometries is therefore a challenge for vibration welding, as the components can be lifted off by the linear movement and the surfaces do not plasticize sufficiently. Previous investigations have shown that angles of up to 20° can be welded in the direction of vibration, but that the deviation from the plane considerably reduces the weld strength. In order to weld three-dimensional weld seam geometries with short cycle times and simultaneously achieve a high weld seam strength, a process is being developed which is intended to extend the design freedom in vibration welding.

塑料产品的常规制造工艺（例如注塑或挤出）通常会限制可实现的组件几何形状。因此，有必要连接组件以生成高度复杂的几何形状。振动焊接是连接零件的一种方法。该过程是经常使用的，其特点是周期时间短，能源效率高以及可以连接大型部件。在振动焊接中，塑料部件通过接合面的振荡摩擦运动被加热，然后被塑化并随后被焊接在一起。因此，三维接缝几何形状的连接对于振动焊接是一个挑战，因为部件可能会通过线性运动而抬起并且表面不能充分塑化。先前的研究表明，可以在振动方向上焊接高达20°的角度，但是与平面的偏离会大大降低焊接强度。为了以短的循环时间焊接三维焊缝几何形状并同时获得高的焊缝强度，正在开发一种旨在扩展振动焊接设计自由度的工艺。