Tooling U - Engine Lathe Operations 261 with Complete Solutions!

Analog Measurement - ANSWER-A type of readout that uses dials with scales inscribed on them to display dimensions on the lathe. Analog measurement is less precise than digital readout. Apron - ANSWER-A rectangular plate mounted to the saddle. The apron holds the carriage handwheel and cross-slide handwheel. Axial - ANSWER-Along or parallel to the workpiece axis. Axial depth of cut is controlled by the carriage-feed handwheel. Backlash - ANSWER-The relative movement of interlocked mechanical components due to slack, or extra space, between them. Backlash often occurs when motion is reversed. Bed - ANSWER-The base of the lathe. Beds provide a foundation for various machine tools. Boring - ANSWER-The process of enlarging an existing hole with a single-point tool. Boring is an inner diameter operation. Boring Tool - ANSWER-A long bar used to position a single-point tool for boring operations. Boring tools may have adjustable or fixed diameters. Burrs - ANSWER-A rough, sharp edge remaining on a part after a cutting process. Burrs pose an injury risk and interfere with the fitting of parts. C Axis - ANSWER-The Cartesian axis describing motion around the Z axis. The C axis describes the rotation of the spindle on a lathe. Calipers - ANSWER-A measuring instrument with a pair of jaws on one end and a long beam containing a marked scale of unit divisions. Calipers can measure both internal and external features. Carriage Assembly - ANSWER-The combination of components that make up the carriage. The carriage assembly includes the saddle, cross slide, compound rest, tool post, and cutting tool. Carriage Handwheel - ANSWER-A hand-cranked wheel that moves the lathe carriage back and forth along the ways, parallel to the workpiece. The carriage handwheel positions the cutting tool for turning operations.