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一、概述滚压螺纹通称为滚丝(搓丝是滚丝的特殊情形)。其原理是利用金属的可塑性,在一定的条件下,按滚丝轮的螺纹型面,金属表层承受变形,即冷压成形,如图1所示。在整个螺纹的形成过程中,无切屑产生,只是工件毛坯表层金属的基本体积重新分布,如图2所示,牙谷abc的金属体积与牙峰ade的体积相等,毛坯的原始体积仍保持不变。因此,滚压螺纹实质是金属材料型面冷
First, an overview Rolling thread known as Rolling (Roll Rolling is a special case). The principle is the use of metal plasticity, under certain conditions, according to thread rolling thread profile, the metal surface to withstand deformation, cold forming, as shown in Figure 1. In the formation of the entire thread, no chipping, but the rough surface of the workpiece blanket metal redistribution of the basic size, shown in Figure 2, the dental valley abc metal volume and the peak volume of the same peak, the original volume of the blank remains unchanged change. Therefore, the rolling thread is essentially cold metal material surface