Vibration welding of thermoplastics. Part II: Analysis of the welding process
Vibration welding of thermoplastics. Part II: Analysis of the welding process
复制标题
热塑性塑料的振动焊接。
DOI：
10.1002/pen.760281105
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发表时间：
1988
影响因子：
3.2
通讯作者：
V. K. Stokes
中科院分区：
文献类型：
--
作者：
V. K. Stokes
已知热塑性塑料的振动焊接过程由四个阶段组成：（1）通过库仑摩擦将界面初始加热至熔化温度;（2）横向方向上的不稳定熔化和流动;（3）稳态流动;以及（4）振动运动停止后膜的不稳定流动和固化。为前三个阶段开发了简单的分析模型。这些模型用于估计熔融膜厚度，热影响区的大小，和焊接时间作为焊接参数的函数：焊接运动的振幅和频率，和焊接压力。稳态膜厚和热影响区被证明是非常小的。
The vibration welding process for thermoplastics is known to consist of four phases: (1) initial heating of the interface to the melting temperature by Coulomb friction; (2) unsteady melting and flow in the lateral direction; (3) steady-state flow; and (4) unsteady flow and solidification of the film after the vibratory motion is stopped. Simple analytical models are developed for the first three phases. These models are used for estimating the molten film thickness, the size of the heat affected zone, and the weld time as functions of the weld parameters: the amplitude and frequency of the weld motion, and the weld pressure. The steady-state film thickness and the heat-affected zone are shown to be very small.