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According to the general visual inspection rules, a mirrored borescope or a fiber optic viewing system can be used where access for direct visual inspection is restricted. This is usually by agreement between the contracting parties. So, What is a Borescope? A borescope (occasionally called a boroscope, though this spelling is unusual) is an optical…
Magnetic Particle Testing (MPT) is a non-destructive testing (NDT) process for detecting surface and low subsurface discontinuities in ferromagnetic materials such as iron, nickel, cobalt, and some of their alloys. The process sets a magnetic field into the part to be magnetized by direct or indirect magnetization. What is the Basic Principle of Magnetic Particle…
Ultrasonic Testing (famously known as U.T.) is one of the most important methods in non-destructive testing. It is mainly used to detect defects in parts and materials and determine material’s thickness. The ultrasonic testing equipment is quite portable therefore making it suitable for inspecting large, irregularly shaped, or heavy stationary parts. AliExpress.com Product – Free…
How many time have you been trying to figure out why the defect occur? What is there to explain in your Root Cause Analysis report when you don’t have any idea why the defect exists in the first place? Maybe you haven’t been looking close enough or from a different perspective. Maybe welding inspectors need to learn visual intelligence…
The Bridge cam gauge is an exclusive and multipurpose welding gauge used especially on welded surface and joints. It is a very handy visual inspection tool for welding inspectors. The gauge has a rotating dial and a sliding pointer to measure weld features. The measurement is displayed in inches and millimeter up to 2” or 60mm. You…
The four common type of solid inclusions usually found in welding are; Slag inclusions Flux inclusions Oxide inclusions Metallic inclusions Type of solid inclusions Let us go through these inclusions one by one. 1. Slag Inclusions Slag inclusions are slag that is trapped during welding. They have an irregular shape so the appearance…
There are 3 common types of weld cavities; They are gas pore, wormholes and surface porosity (including Crater pipe). Let us explore them. 1. Gas Pore A gas pore is a trapped cavity within the weld metal that has a basic round shape and comes in a form of isolated, elongated cavity and surface pore. Meanwhile, a…
