FAQs

  • What is visual inspection of welds?

    Visual inspection is conducted to identify surface flaws or conditions, that are visible to the naked eye. A visual inspector will examine the weld or asset visually and determine if any discontinuities or issues are present. This insection method also allows the inspector to uncover issues related to geometry of a weld or the condition of an asset. This non-destructive testing method is commonly used as a first step in welding or asset inspections, as it is a quick way to determine if any initial concerns are present. However, this inspection method has several limitations, including the fact that it can only be used to identify flaws that are visible. As well, visual inspections on welds may be conducted throughout the process to ensure a successful outcome. Read More...
  • What is the most commonly used method of weld inspection?

    There are two commonly used methods of weld inspection - Radiographic Testing (RT) and Ultrasonic Testing (UT). Both of these weld inspection methods are non-destructive and can be used to detect internal imperfections. These methods are versatile and can detect very slight flaws in a weld or component. Both Radiographic Testing and Ultrasonic Testing require skilled NDT inspectors to perform the examination and analysis. Professional and certified welding inspectors will ensure reliable results that help to maintain asset integrity. With the help of organizations that offer NDT inspection services for CSA Standard W178.1, companies can avoid detrimental damages and costs caused by unexpected asset failure. Read More...
  • What kind of inspections can be done on a weld?

    Two kinds of inspections can be done on a weld - destructive and non-destructive inspections. While destructive weld inspection physically destroys a portion of the weld in order to evaluate it, non-destructive testing allows for inspection without causing damage. Non-destructive testing (NDT) techniques are commonly used by weld inspection organizations in Canada, like Buffalo Inspection Services. This is due to the ability of NDT methods to accurately detect surface and subsurface flaws without destroying the weld. However, many non-destructive testing methods require skilled technicians to interpret the results and arrive at an accurate evaluation. Therefore, it is important that a certified welding inspector conducts non-destructive testing on welds. Read More...
  • How many types of welding inspections are there?

    There are five types of NDT welding inspection methods used in Canada. These include: Visual Testing (VT) Radiographic Testing (RT) or X-ray Ultrasonic Testing (UT) Magnetic Particle Testing (MT) Liquid Penetrant Testing (PT) Visual inspection is the simplest form of non-destructive testing for welding inspection. VT requires the welding inspector to examine the weld visually to identify surface flaws. Radiographic inspection, also referred to as X-ray, is also common and can be used to identify internal discontinuities in a weld. RT is a widely accepted inspection method and highly versatile. Magnetic Particle inspection is used to detect flaws on the surface and just below the surface of a weld. This option is more sensitive than some NDT methods, meaning it can identify tighter cracks and flaws. However, MT can only be used on ferromagnetic materials. Liquid Penetrant Testing is used to uncover surface cracks that cannot be detected by the naked eye. This non-destructive testing method can be used to easily detect flaws in materials that are complex in shape. Ultrasonic weld inspection is used to uncover internal and surface flaws. This method is extremely sensitive, allowing for the detection of minor discontinuities. Phased array ultrasonic technology allows for even more advanced inspection. Phased Array Ultrasonic Testing, or PAUT, evaluates a component from multiple angles. As a result, complex components can be quickly and easily inspected. Read More...
  • What is the purpose of inspection in welding?

    Welding inspection is important for several reasons. Most importantly, inspection in welding is used to determine whether a weld meets certain codes and standards, and is capable of fulfilling its intended purpose. When conducting inspections, welding inspectors can determine if any flaws or other shortcomings exist, in which case the weld may need to be repaired or replaced. Overall, welding inspection is important to ensure performance and safety. For example, the welding on pressure equipment must meet high standards to ensure safety. Inspections can also help companies save money by detecting possible issues before they arise. This reduces costs related to accidents and asset loss. However, above all, inspection helps to protect employees, the public, and the environment from unexpected asset failure. Read More...
  • Is Buffalo Inspection CSA W178.1 certified?

    Yes, Buffalo Inspection Services is CSA W178.1 certified. This means that Buffalo is certified to provide non-destructive testing services in various industries. CSA W178.1 certification was designed for organizations in the NDT industry. To be CSA W178.1 certified, an NDT company in Canada must have Inspector Supervisor Personnel, Certified Visual Welding Inspectors and certified NDE Personnel on staff. The scope of Buffalo’s CSA 178.1 certification includes the welding inspection of buildings, bridges, industrial structures, machinery, cranes, rail and road vehicles, as well as pipelines and piping. Buffalo is certified to perform NDT inspection services using visual (VT), radiography (RT), ultrasonic (UT), magnetic particle (MT), and liquid penetrant (PT) NDT methods. Read More...