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       CODE: 605.280-018 Buy the DOT:Download/CD-ROM
TITLE(s): PROFILING-MACHINE SET-UP OPERATOR, TOOL (machine shop) alternate titles:
duplicating-machine operator; tracer-controlled-milling-machine operator; milling-machine operator;
milling-planer operator; slab-miller operator
Sets up and operates various types of tracer-controlled profile milling machines to mill
duplicates of template or model contour on metal workpieces, such as cams, metalworking dies,
aircraft parts, and automobile prototype parts, determining tooling according to knowledge of
profiling procedures: Studies blueprint, dimensioned sketch, or layout on workpiece to visualize
milling required and plans sequence of operations. Lifts and positions workpiece on machine bed
manually or using hoist. Secures workpiece and template or model on angle plates or machine table,
using clamps, wrenches, and such devices as height and planer gauges, parallel blocks, shims,
and screwjacks. Selects cutting speeds, depth of cut, cutting tool, and corresponding tracing
stylus. Positions and secures cutter and stylus in respective spindles. Turns switches or dials to
set feed and speed and to position cutter and stylus at reference points on workpiece and template
or model allowing for tool pressure, die clearance, and amount of stock to be left for subsequent
removal. Engages feeding mechanism. Observes machining operation and adjusts cutter position,
cutting speed, and feed rate to ensure that workpiece conforms to specifications. Verifies
conformance of milled workpiece to specifications, using gauges, calipers, and micrometers. May work
on nonmetallic materials. May make cutters and styluses. May inspect workpiece on projection
(shadow) comparator machine to determine if profiled cuts align with projected drawing.
GOE: 06.01.03 STRENGTH: M GED: R4 M4 L3 SVP: 7 DLU: 77
ONET CROSSWALK: 91111 Milling and Planing Machine Setters and Set-Up Operators, Metal and Plastic
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