Search results
Results from the WOW.Com Content Network
SADM in its carry bag SADM hard carrying case A U.S. Army Special Forces paratrooper conducts a high-altitude low-opening military freefall jump with an MK–54 SADM. The Special Atomic Demolition Munition (SADM), also known as the XM129 and XM159 Atomic Demolition Charges, [1] and the B54 bomb [2] was a nuclear man-portable atomic demolition munition (ADM) system fielded by the US military ...
Some jobs, despite being classifiable as semiskilled work, actually require quite a bit of talent and experience to be done well, for example, band saw operators or buffing and polishing workers. Rigger, a person specializing in the skills needed to move large, heavy objects
Brazing is a joining process in which a filler metal is melted and drawn into a capillary formed by the assembly of two or more work pieces. The filler metal reacts metallurgically with the workpieces and solidifies in the capillary, forming a strong joint. Unlike welding, the work piece is not melted.
In practice materials are usually heated to the upper limit first to keep forming forces as low as possible and to maximize the amount of time available to hot work the workpiece. [ 1 ] The most important aspect of any hot working process is controlling the temperature of the workpiece. 90% of the energy imparted into the workpiece is converted ...
Metal fabrication is the creation of metal structures by cutting, bending and assembling processes. It is a value-added [ 1 ] process involving the creation of machines, parts, and structures from various raw materials.
In metalworking, forming is the fashioning of metal parts and objects through mechanical deformation; the workpiece is reshaped without adding or removing material, and its mass remains unchanged. [1] Forming operates on the materials science principle of plastic deformation, where the physical shape of a material is permanently deformed.
In metallurgy, cold forming or cold working is any metalworking process in which metal is shaped below its recrystallization temperature, usually at the ambient temperature.. Such processes are contrasted with hot working techniques like hot rolling, forging, welding, etc. [1]: p.375 The same or similar terms are used in glassmaking for the equivalents; for example cut glass is made by "cold ...
Casting is the process of creating objects by filling a mold with molten metal and allowing it to cool. Centrifugal; Continuous; Die; Evaporative-pattern. Full-mold; Lost-foam; Investment. in art: Lost-wax; Permanent mold; Plaster mold; Sand; Semi-solid metal; Shaw process; Shell molding; Spin