|
|
       CODE: 606.280-014 Buy the DOT:Download/CD-ROM
TITLE(s): BORING-MILL SET-UP OPERATOR, HORIZONTAL (machine shop) alternate titles:
horizontal-boring-drilling-and-milling-machine operator; horizontal-boring-mill operator
Sets up and operates horizontal boring, drilling, and milling machine to perform machining
operations, such as milling, drilling, boring, and reaming metal workpieces, such as machine, tool,
or die parts, analyzing specifications and deciding on tooling according to knowledge of shop
mathematics, metal properties, and machining procedures: Studies machining instructions, such as job
order, blueprint, process sheet, or layout on workpiece to determine machining required, sequence of
operation, tooling, feed, and speed rate, applying knowledge of materials and machining. Lifts
workpiece either manually or with crane or hoist onto machine table or directs MONORAIL CRANE
OPERATOR (any industry) to put workpiece on machine table. Positions and secures workpiece to table
or angle plate, using clamps, shims, and parallel blocks and verifies position with such instruments
as dial indicators, gauge blocks, and height gauges. Selects and mounts tool in spindle. Moves
controls to set feeds, speeds, and depth of cut, and to position tool and workpiece in relation to
each other, verifying position visually, with instruments, such as thickness gauges, and by reading
dials. Starts machine and observes operation, making one or more trial passes with manual control
before engaging feed. Verifies dimensions of machined workpiece with such measuring instruments as
micrometers, telescoping gauges, vernier calipers, and dial indicators. Works to tolerance of
plus or minus 0.001 inch. May use precision positioning devices, such as dial indicators mounted on
machine troughs with standard length rods and work to tolerance as close as plus or minus 0.0001
inch. May operate tracing attachment to duplicate contours from templates or models. May operate
machine with automatic positioning controls. May lay out reference lines and machining locations on
workpiece, according to blueprints, using layout tools, such as rule, divider, and scriber, applying
knowledge of shop mathematics and layout techniques. May operate bench grinder to sharpen
tools. May set up and operate vertical boring mill and be designated Boring-Mill Set-Up Operator,
Vertical (machine shop). Important variations may be indicated by trade names of machine used.
GOE: 06.01.03 STRENGTH: M GED: R4 M4 L3 SVP: 7 DLU: 77
ONET CROSSWALK: 91108 Drilling and Boring Machine Tool Setters and Set-Up Operators, Metal and Plastic
|