如何能既安全而又经济地将工具接头焊接在钻杆上,这是多年来对设计师们的创新所提出的挑战。本文打算对现行的一些焊接方法,如“闪光焊”、惯性焊及磨擦焊等,作一概述,并对这些方法有何差异和利用这些方法如何取得同样的结果作一比较。此项研究表明,焊接区的面积须小但却是关键部位,因为这是关系到钻柱用户在进行钻井作业时是否不出故障、不受影响的问题。 How to safely and economically weld the tool joint to the drill pipe is a challenge that has been raised by designers over the years. This article intends to outline some of the current methods of welding, such as flash welding, inertial welding and friction welding, and to make a comparison of how these methods work and how these methods can be used to achieve the same results. This study shows that the weld area is small but a critical area because it is a question of whether a drill string user will be able to perform a drilling operation without failure or impact.