An operation in which a drill enters the workpiece axially and cuts a hole with a diameter equal to that of the tool. On a milling machine, an end milling operation is required to produce a hole with a tool smaller than the hole diameter. A drilling operation typically produces a blind hole, which ...
A generic term for measures of resistance to extension of a crack. The term is sometimes restricted to results of fracture mechanics tests, which are directly applicable in fracture control. However, the term commonly includes results from simple tests of notched or precracked specimens not based ...
A general classification of the shape of a part. Parts are often first classified by their thickness as being either flat, thin-walled, or solid. Thin-walled and solid parts can be further classified by the basic shape of their outer surface, being either cylindrical, cubic, or complex. The part ...
Steel designations defined by of the American Iron and Steel Institute. AISI carbon and alloy steels are essentially the same as those designated by the Society of Automotive Engineers (SAE). The AISI system is more comprehensive than the SAE in that letters precede the alloy number indicating the ...
An operation in which an end mill makes either peripheral or slot cuts across the workpiece, determined by the step-over distance, in order to machine a specified feature. The depth of the feature may be machined in a single pass or may be reached by machining at a smaller axial depth of cut and ...
The cutterpath describes the path of the tool while it travels the cut length in order to complete an operation. For some operations, the required cutterpath will involve not only cutting away all the material (roughing) but also cutting along the perimeter to leave a smooth finish (profiling). ...
An operation in which a chamfer mill makes a peripheral cut along an edge of the workpiece or a feature to create an angled surface, known as a chamfer. It is assumed that the angle of the chamfer is 45 degrees, so that the chamfer width is equal to its height. The chamfer length can be the ...
The pallet is the moveable platform in a milling machine to which the fixture and workpiece are attached. A pallet changer allows another pallet to be loaded with a workpiece and then automatically changed with the pallet supporting a finished part. The pallet change time describes the complete ...
