Job Knowledge--97 Welding costs - continued

摘要

The previous two Connect articles dealt with the mechanics of costing a weld: how to calculate the weld volume and how to calculate the amount of welding consumables required to fill a weld preparation. The final step in costing a weld is to determine the length of time to deposit this weight of weld metal. This is obviously a function of the deposition rate of the process. The deposition rate is generally expressed as kgs/hr or Ibs/hr deposited at a given welding current, welding continuously and without any breaks for electrode changing or deslagging.