Which of the following is NOT a typical process included in joint preparation?

The process of joint preparation in welding encompasses specific actions taken to ensure that the materials to be welded fit together properly and can be welded effectively. This usually includes cleaning the surfaces of contaminants, which can interfere with the weld quality, and cutting or shaping the materials to create the desired joint configuration. In some cases, preheating may also be required to reduce the risk of defects such as cracking or to improve the weld's overall quality.

Igniting, on the other hand, refers to the act of starting the arc or flame in the welding process itself, rather than preparatory actions taken before actual welding begins. As such, it is not considered part of the joint preparation process. Understanding this distinction is key, as preparation sets the stage for a successful weld, while igniting is merely a part of executing the weld after preparations are complete.