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A machine for the primary disintegration of metal pieces, ores, or agglomerates into coarse powder.
A mechanism for holding a part and guiding the tool during machining or assembly operation.
Boring with a single-point tool where the work is positioned upon a table that can be located so as to bring any desired part of the work under the tool. Thus, holes can be accurately spaced. This type of boring can be done on milling machines or jig borers.
A mathematical expression; a line or surface integral that encloses the crack front from one crack surface to the other, used to characterize the fracture toughness of a material having appreciable plasticity before fracture. The J-integral eliminates the need to describe the behavior of the material near the crack tip by considering the local stress-strain field around the crack front; JIc is the critical value of the J-integral required to initiate growth of a preexisting crack.
The location where two or more members are to be or have been fastened together mechanically or by welding, brazing, soldering, or adhesive bonding.
The distance between the faying surfaces of a joint. In brazing, this distance is referred to as that which is present before brazing, at the brazing temperature, or after brazing is completed.
The ratio of the strength of a welded joint to the strength of the base metal, expressed in percent.
Packing sand in a mold by raising and dropping the sand, pattern, and flask on a table. Jolt-type, jolt squeezers, jarring machines, and jolt rammers are machines using this principle. Also called jar ramming.
See end-quench hardenability test.