What is Deposition Rate in Welding?

The deposition rate is the measure of how much material is deposited in a unit of time. This is usually expressed in either pound per hour (lb/h) or kilograms per hour (kg/h).

The deposition rate is an important consideration in welding, as it can impact both the speed and quality of the weld. Higher deposition rates can lead to faster welding speeds, but can also result in poorer weld quality. Conversely, lower deposition rates will produce slower welding speeds but better weld quality. It is important to find the right balance of speed and quality for your particular welding application.

Which welding has a higher deposition rate?

In general, higher deposition rates are possible with thicker wires and shorter arc lengths. For example, a 1/8″ diameter wire used with a 1/4″ arc length will have a deposition rate that is approximately double that of a 3/32″ diameter wire used with a 1/2″ arc length.

How do welders increase deposition rates?

Deposition rates can also be increased by increasing the welding current. However, this will also generally result in an increase in weld metal porosity. Therefore, it is important to find the right balance of current and deposition rates for your particular application.

Saw deposition rate vs MIG deposition rate

In general, saw welding has a higher deposition rate than MIG welding. This is because saw welding uses a continuous wire feed, while MIG welding uses an intermittent wire feed. The continuous wire feed of saw welding allows for more material to be deposited in a given period of time.

What are the benefits of high deposition rates?

High deposition rates can be beneficial in many welding applications.

  • For example, they can allow for faster weld times, which can be important when time is of the essence.
  • Additionally, high deposition rates can also lead to increased productivity and efficiency.

What are the drawbacks of high deposition rates?

However, there are also some potential drawbacks to using high deposition rates.

  • One downside is that high deposition rates can sometimes lead to poor weld quality.
  • Additionally, high deposition rates can also increase the amount of spatter and weld fumes that are produced.

Therefore, it is important to consider all factors before increasing the deposition rate in your welding application.

Deposition rate formula

The deposition rate formula is:

DR = (Wfs x I)/60, where:

DR = Deposition Rate (lb/h or kg/h)

Wfs = Wire Feed Speed (in/min or mm/s)

I = Welding Current (A)

For example, if you are using a 1/8″ diameter wire with a wire feed speed of 200 inches per minute and a welding current of 100 amps, your deposition rate would be:

DR = (200 x 100)/60 = 3.33 lb/h or 1.52 kg/h.

Related Links

Submerged Arc Welding Can Greatly Improve Deposition Rates | MillerWelds
Welding Costs – Continued – TWI
Handbook – Welding Techniques
Lesson 9 – Estimating & Comparing Weld Metal Costs
How to Calculate Deposition Rate for Solid Wires | WELDING ANSWERS

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