- 行业: Aviation
- Number of terms: 16387
- Number of blossaries: 0
- Company Profile:
Aviation Supplies & Academics, Inc. (ASA) develops and markets aviation supplies, software, and books for pilots, flight instructors, flight engineers, airline professionals, air traffic controllers, flight attendants, aviation technicians and enthusiasts. Established in 1947, ASA also provides ...
A method of increasing the size of a hole in a piece of material by cutting it with a rotary cutting tool.
Industry:Aviation
A method of increasing the strength and hardness of metal without the use of external heat. Cold working is done by hammering the metal, bending it back and forth, or pulling it through dies.
Industry:Aviation
A method of increasing the strength of heat-treated aluminum alloy. After the aluminum alloy has been solution-heat-treated by heating and quenching, it is returned to the oven and heated to a temperature lower than that used for the initial heat treatment. It is held at this temperature for a specified period of time and then removed from the oven and allowed to cool slowly. Precipitation heat treatment is also known as artificial aging.
Industry:Aviation
A method of inspecting ferrous metal components for cracks and other types of flaws. The part being inspected is magnetized and then flooded with iron oxide suspended in a light oil much like kerosine. Any flaw, either on the surface or slightly below the surface, forms a north and a south pole, and the iron oxide attracted to these poles helps locate the flaw.
The iron oxide is often treated with a fluorescent dye, and the inspection is conducted in a darkened booth. When an ultraviolet light (black light) is shone on the part, the treated iron oxide shows up as a brilliant line.
Industry:Aviation
A method of joining metals by allowing capillary action to pull molten, nonferrous filler metal between close-fitting parts. When the filler metal solidifies, it holds the parts together.
Brazing differs from soldering in the melting temperature of the filler metals used. Soldering uses filler metals that melt at temperatures below 800°F, and brazing metals melt at temperatures above 800°F.
Industry:Aviation
A method of joining metals by melting them and allowing the molten metal from the two pieces to flow together. The heat used to melt the metal is provided by burning a mixture of fuel gas and oxygen. The two most generally used fuel gases are acetylene and hydrogen.
Industry:Aviation
A method of joining pieces of metal by fusion. The pieces to be joined are placed next to each other, and the surfaces between the two pieces are melted and allowed to flow together. The heat used to melt the edges is produced by a gas flame, an electric arc, or an extremely hot stream of plasma (ionized particles that act as a gas).
Most welds are reinforced by adding filler metal to the puddle of molten metal to build up the area where the pieces are joined.
Industry:Aviation
A method of joining pieces of metal by wetting their surfaces with a molten brass alloy. The brass rod used for braze welding melts at a temperature above 800°F, but below the melting temperature of the metals being joined.
Braze welding differs from brazing in that it does not use capillary action to pull the molten alloy between the pieces of metal being joined.
Industry:Aviation
A method of joining pieces of wood to form the sides of a box or drawer.
The ends of one piece of wood are cut with triangular-shaped cutouts that look like the spread-out tail of a dove. These cutouts are called the mortises. The other piece of wood is cut with tenons that are shaped so they exactly fit into the mortises. When the tenons are fitted into the mortises, they form a solid joint.
Industry:Aviation
A method of joining stages of electronic circuits with capacitors. Capacitors isolate the stages with regard to DC, but allow them to operate at the same AC potential.
Industry:Aviation
