Related Glossary Terms
Tapered tool, with a series of teeth of increasing length, that is pushed or pulled into a workpiece, successively removing small amounts of metal to enlarge a hole, slot or other opening to final size.
Operation in which a cutter progressively enlarges a slot or hole or shapes a workpiece exterior. Low teeth start the cut, intermediate teeth remove the majority of the material and high teeth finish the task. Broaching can be a one-step operation, as opposed to milling and slotting, which require repeated passes. Typically, however, broaching also involves multiple passes.
- gang cutting ( milling)
gang cutting ( milling)
Machining with several cutters mounted on a single arbor, generally for simultaneous cutting.
Machining operation in which metal or other material is removed by applying power to a rotating cutter. In vertical milling, the cutting tool is mounted vertically on the spindle. In horizontal milling, the cutting tool is mounted horizontally, either directly on the spindle or on an arbor. Horizontal milling is further broken down into conventional milling, where the cutter rotates opposite the direction of feed, or “up” into the workpiece; and climb milling, where the cutter rotates in the direction of feed, or “down” into the workpiece. Milling operations include plane or surface milling, endmilling, facemilling, angle milling, form milling and profiling.
- slotting machine ( shaper)
slotting machine ( shaper)
Vertical or horizontal machine that accommodates single-point, reciprocating cutting tools to shape or slot a workpiece. Normally used for special (unusual/intricate shapes), low-volume runs typically performed by broaching or milling machines. See broaching machine; mill, milling machine.
Minimum and maximum amount a workpiece dimension is allowed to vary from a set standard and still be acceptable.
NTK's Shaper Duo tools are effective alternatives to traditional approaches for socket machining, such as end milling and rotary broaching. The insert bars generate less tool pressure than broach methods, and cycle time is greatly reduced due to an efficient machining process. The system generates better socket tolerance and corner edge sharpness. The tooling is designed for positioning in the back spindle of Swiss machines. NTK carries a selection of insert bars capable of machining T6 up to T30 hexalobular sockets, hexagon size ranging from 1.5 up to 12mm, and square sockets ranging from 1.9 up to 8.1mm AF range.
For more information viist NTK at http://www.ntkcuttingtools.com/