In aircraft construction, stressed skin is a form of construction in which the external covering (skin) of an aircraft carries part or all of the main loads. Stressed skin is made from high strength rolled aluminum sheets. Stressed skin carries a large portion of the load imposed upon an aircraft structure. Various specific skin areas … Read more
Oxy-acetylene cutting is commonly used in aircraft maintenance shops to remove damaged steel parts, trim metal stock, or cut material to size. The process uses a preheating flame and a stream of high-pressure oxygen to rapidly oxidize and remove the metal along the cut line. Cutting ferrous metals by the oxy-acetylene process is primarily the … Read more
Paint Booth A paint booth may be a small room in which components of an aircraft are painted, or it can be an aircraft hangar big enough to house the largest aircraft. Whichever it is, the location must be able to protect the components or aircraft from the elements. Ideally, it would have temperature and … Read more
Gas tungsten arc welding (GTAW), commonly called TIG welding, is widely used in aircraft maintenance because it produces strong, precise welds with excellent control and minimal contamination. TIG welding is especially suited to aircraft materials such as 4130 steel, stainless steel, aluminum, magnesium, and titanium. The TIG process as it is known today is a … Read more
Brazing and soldering are metal-joining processes that use a filler metal with a lower melting temperature than the base material. These methods are commonly used in aircraft maintenance when a strong, leak-proof joint is required but the higher heat of welding is undesirable. Torch Brazing of Steel The definition of joining two pieces of metal … Read more
Oxy-fuel welding and cutting require a combination of properly matched gases, regulators, hoses, torches, and safety equipment. Correct selection and setup of this equipment are essential for safe operation and for producing a clean, efficient flame. Welding Gases Acetylene Acetylene is the primary fuel gas used for oxy-fuel welding and cutting. It is chemically very … Read more
Alternating current (AC) is widely used in modern aircraft electrical systems due to its efficiency, reliability, and ability to supply high-power loads. Alternating current (AC) electrical systems are found on most multi-engine, high-performance turbine-powered aircraft and transport category aircraft. AC is the same type of electricity used in industry and for residential power systems. Direct … Read more
Aviation safety depends on the reliable performance of braking systems to decelerate aircraft, maintain control during taxiing, and ensure secure engine run-ups. Modern aircraft brakes are sophisticated units that convert the kinetic energy of a landing or taxiing aircraft into heat through controlled friction. From simple single-disc systems on light trainers to complex multiple-disc carbon … Read more
Ferrous and nonferrous metals respond differently to oxy-acetylene welding because of their composition, melting characteristics, and reaction to heat and oxidation. Successful welding requires the correct flame, filler rod, flux, and heating technique for each type of metal to maintain the strength and corrosion resistance of the finished weld. Oxy-Acetylene Welding of Ferrous Metals Steel … Read more
Working Stainless Steel Corrosion-resistant-steel (CRES) sheet is used on some parts of the aircraft when high strength is required. CRES causes magnesium, aluminum, or cadmium to corrode when it touches these metals. To isolate CRES from magnesium and aluminum, apply a finish that gives protection between their mating surfaces. It is important to use a … Read more
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