旋转肩接头连接用数控车床冷加工螺纹根部

[中文适用范围]： 本技术报告描述了使用数控车床(CW/CNC)对API 7-2螺纹尺寸进行冷根滚压的程序。冷加工可通过两种方法实现：1)使用与螺纹形状相似的滚轮在压力下冷滚压；2)喷丸处理。两种方法均可获得可接受的结果，但机器螺纹根滚压更具可控性。本技术报告的目的不是解释螺纹根滚压的好处，而是制造过程和质量控制要求。本技术报告将介绍冷根滚压API 7-2螺纹和标识标记的最佳实践（或推荐实践）。本技术报告不涉及使用手动车床(CW/Manual)的冷根滚压——这是一个类似的过程，但使用不同的工具用于销和盒。然而，本技术报告中描述的工具也可用于手动车床。将CW滚轮定位到螺纹中的步骤以及工具移动的路径在数控机床控制之间可能有所不同。 [外文原描述]： This technical report describes procedures for cold root rolling the thread roots on API 7-2 thread sizes using CNC Lathes (CW/CNC). Cold working can be applied by a couple methods: (1) cold rolling under pressure with a roller shaped like the thread form, or (2) shot peening. Both methods achieve acceptable results but machine thread root rolling is more controllable. It is not the intent of this technical report to explain the benefits of thread root rolling, but the manufacturing process and quality control requirements. This technical report will address the best practices (or recommended practices) to cold root roll API 7-2 threads and identification marking. This technical report will not address cold root rolling using manual lathes (CW/Manual) – a similar process but with different tools used for the pin and box. However, the tools described in this technical report can also be used on manual lathes. The steps to position the CW roll into the thread and the paths the tools mo