How do you estimate welding cost for a large fabrication? Estimating the weld hours at 100% welder efficiency is straight forward. The AWS Welding Handbook is a good resource. Difficulty arises when you must apply an efficiency factor to the welder. Welder efficiency can range from 5% to 100% depending on the weld process and fabrication size. Your best bet is to use historical data for your type and size of fabrications to determine a welder efficiency factor.
There is no “one size fits all.”
September 24, 2014