Welding Productivity Calculator

Use the calculator to estimate welding productivity using two common metrics: travel speed (weld length per arc time) and deposition per length (filler metal deposited per unit weld length). In the Deposition per Length tab, enter any 3 values to calculate the missing variable. In the Travel Speed tab, enter any 2 values to calculate the missing variable.

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Welding Productivity (Travel Speed & Deposition per Length) Formulas

The following formulas are used to calculate travel speed and deposition per length.

\begin{aligned}
\mathrm{TS} &= \frac{L}{A} \\
\mathrm{DPL} &= \frac{D/60}{L/A} = \frac{D\,A}{60\,L}
\end{aligned}

Variables:

• TS is the travel speed (in/min when L is in inches and A is in minutes)
• DPL is the deposition per length (lb/in when D is in lb/hr, L is in inches, and A is in minutes)
• L is the weld length
• A is the arc time
• D is the deposition rate (lb/hr)

To calculate travel speed, divide weld length by arc time. To calculate deposition per length, convert the deposition rate to pounds per minute (D/60) and divide by the travel speed (L/A) to get pounds per inch.

What is Welding Productivity?

Welding productivity is commonly evaluated using measures like travel speed (how quickly weld length is produced during arc-on time) and deposition per length (how much filler metal is deposited per unit of weld length). These metrics are useful for estimating weld time, planning production, and estimating consumable usage.

How to Calculate Welding Productivity?

The following steps outline how to calculate these welding productivity metrics.

1. Determine the weld length (L).
2. Determine the arc time (A).
3. Calculate travel speed (TS) using TS = L / A.
4. If you also know deposition rate (D) in lb/hr, calculate deposition per length (DPL) using DPL = (D/60) / (L/A).
5. After calculating, you can check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Weld length (L) = 120 inches

Arc time (A) = 30 minutes

Deposition rate (D) = 6 pounds per hour

Travel speed (TS) = L / A = 120 / 30 = 4 in/min

Deposition per Length (DPL) = (D/60) / (L/A) = (6/60) / 4 = 0.025 lb/in (≈ 0.300 lb/ft)