Metric Mig Welding Wire Speed And Voltage Chart
Introduction
Mig welding is one of the most popular welding techniques used in manufacturing, construction, and repair works. It is a fast, efficient, and versatile welding process that utilizes a consumable wire electrode and a shielding gas to join two or more metal pieces together. However, to achieve high-quality welds, you need to set the right welding parameters, including the wire speed and voltage. In this article, we will discuss the metric Mig welding wire speed and voltage chart and how to use it to get optimal welding results.
What Is A Metric Mig Welding Wire Speed And Voltage Chart?
A metric Mig welding wire speed and voltage chart is a graphical representation of the recommended welding parameters for different wire diameters and metal thicknesses. It shows the optimal voltage and wire speed settings for different welding applications, including butt welds, fillet welds, and lap welds. The chart is usually provided by the welding wire manufacturer or can be calculated using the welding formula.
How To Read The Metric Mig Welding Wire Speed And Voltage Chart?
Reading the metric Mig welding wire speed and voltage chart is easy if you understand the different parameters and their units of measurement. The chart is usually divided into two columns, one for the wire diameter and the other for the metal thickness. Each row corresponds to a specific welding application, such as butt welds, fillet welds, and lap welds. The voltage and wire speed settings are usually given in millimeters per minute (mm/min) and volts (V), respectively.
For instance, if you are welding a 2mm thick mild steel plate using a 0.8mm wire diameter, you can use the chart to determine the recommended welding parameters. You can look for the row that corresponds to lap welds, locate the intersection of the 2mm metal thickness column and the 0.8mm wire diameter column, and read the recommended voltage and wire speed settings. In this case, the recommended settings could be 18V and 230mm/min.
Factors Affecting The Metric Mig Welding Wire Speed And Voltage Chart
The metric Mig welding wire speed and voltage chart is a useful tool for determining the recommended welding parameters. However, it is important to note that the actual settings may vary depending on several factors, such as the welding position, joint type, gas flow rate, and welding technique. Therefore, it is always advisable to perform a test weld before starting the actual welding process to ensure that the settings are optimal.
Conclusion
The metric Mig welding wire speed and voltage chart is an essential tool for achieving high-quality welds using the Mig welding process. By understanding how to read and use the chart, you can determine the recommended voltage and wire speed settings for different welding applications. However, you should also consider other factors that may affect the actual settings and perform a test weld to ensure optimal results.
