aluminizing
Formation of an aluminum or aluminum-alloy coating on a metal by hot dipping, hot spraying or diffusion.
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Glossary Terms
aluminum alloys
Aluminum containing specified quantities of alloying elements added to obtain the necessary mechanical and physical properties. Aluminum al…
aluminum oxide
Aluminum oxide, also known as corundum, is used in grinding wheels. The chemical formula is Al2O3. Aluminum oxide is the base for ceramics,…
amorphous
Not having a crystal structure; noncrystalline.
angle of entry
Determined by the position of the milling cutter’s centerline relative to the edge of the workpiece. Depending on the cutter diameter and t…
angle plate
Solid adjustable or nonadjustable plate that holds work at a precise angle to the spindle during machining. Also used for inspection.
annealing
Softening a metal by heating it to and holding it at a controlled temperature, then cooling it at a controlled rate. Also performed to prod…
approach angle
Angle between the insert’s side-cutting edge and the line perpendicular to the milling cutter’s axis of rotation. Approach angle, which is …
APT file
A file for automatically programmed tools that consists of the input language, an APT processor, an APT postprocessor and a computer of suf…
arbor
Shaft used for rotary support in machining applications. In grinding, the spindle for mounting the wheel; in milling and other cutting oper…
assembly
Joining together two or more parts to complete a structure.
ausforming
Hot deformation of metastable austenite within controlled ranges of temperature and time that avoids formation of nonmartensitic transforma…