What Type Welding to Choose? The Different Factors at Play

In a workshop like Cividac's, quality control is not only limited to the finished component, but starts well before the production phase, by determining what types of welding will be applied.

There are many factors influencing this decision. Let's start from the most important one: the level of standard to obtain.

What are the optimal welding standards?

There is no single optimal standard, which would depend on several factors, for example the operating environment, or the substances that will be employed.

In our case, standards will necessarily be high, considering that our components often operate in extreme climatic conditions, with high internal pressures, or treating delicate substance like foodstuff, or highly corrosive chemical compounds.

In order to give an objective value to the standard to reach, standards organizations will consider mechanical properties as tensile strength, ductility, and soundness.

The factors determining the type of welding to use

Once the required standards are known, it's time to determine the best type of welding to employ. In this case too, the final choice will depend on several factors, which can be internal or external.

Internal factors are those with a direct influence on mechanical properties. The most important one is the type of materials to weld, which can be divided into ferrous and non-ferrous, each one with several sub-categories. A given welding technique will be more or less recommended depending on the characteristics of the single material.

Welding technique and material to weld are therefore strictly connected: changing one or the other can greatly affect the final result. Quality control however, will also have to deal with the external factors, such as:

  • the type of equipment used in the workshop
  • the level of skills of the welders
  • the timeframe required by the project
  • the cost, in terms of workhours and materials
  • the form and diameter of the part to weld

The role of the quality control coordinator will be to find the right balance between required standards and internal efficiency.