- Industry: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who tends machine that grinds and polishes steel pellets to specified diameter for use as BB shot in air guns. Respnsibilities include:
* Scoops pellets into feed hopper and starts machine.
* Turns valve to control coolant flow and adds scouring powder to hasten abrasive action.
* Measures ejected shot at machine discharge chute to verify size, using gauges, and turns handwheel to adjust pressure plates that increase or decrease size of shot.
Industry:Professional careers
A professional who tends machine that automatically polishes watch crown and ratchet wheels and inscribes decorative snailed (spiral or volute-shaped) lines on them. Respnsibilities include:
* Places wheel in rotating chuck of machine.
* Brushes abrasive mixture onto metal lap and starts machine that automatically polishes and snails wheels.
Industry:Professional careers
A professional who tends machine that stones and polishes bevel face (outside periphery) of screwheads. Respnsibilities include:
* Inserts screws in spring chuck.
* Swings stoning face into position against rotating heads and holds it in place until pilot bulb lights, indicating heads are stoned to size.
* Turns stoning face away and swings polishing lap into position against rotating heads to impart finish to bevel faces.
* Removes finished screws from chucks.
Industry:Professional careers
A professional who tends machine that stones and polishes bevel face (outside periphery) of screwheads. Respnsibilities include:
* Inserts screws in spring chuck.
* Swings stoning face into position against rotating heads and holds it in place until pilot bulb lights, indicating heads are stoned to size.
* Turns stoning face away and swings polishing lap into position against rotating heads to impart finish to bevel faces.
* Removes finished screws from chucks.
Industry:Professional careers
A professional who feeds metal parts into automatic polishing machine, and transfers polished parts from conveyor to trays.
* Adds coolant to reservoir of polishing machine, and removes abrasive sludge from collection tank.
* Assists polishing-machine operator in changing abrasive belts.
Industry:Professional careers
A professional who feeds and off bears machine that automatically cleans and removes burrs from panels for production of printed circuit boards (PCB's). Respnsibilities include:
* Loads panels into automatic feeder device that conveys panels into deburring machine.
* Flips switch or presses button to start deburring machine that automatically cleans and deburrs panels.
* Removes cleaned and deburred panels from machine and examines panels for scratches.
* Records production data.
* May turn crank to adjust pressure of steel brushes that deburr panels.
* May buff scratches on panels, using hand buffer.
* May replace machine filter, using wrench.
Industry:Professional careers
A professional who supervises and coordinates activities of workers engaged in grinding, turning, and shot blasting mill rolls to specified surface finish and in repairing roll set bearings of mill rolls used in shaping steel in rolling mills. Respnsibilities include:
* Reviews job orders, studies blueprint specifications, and inspects rolls to plan shop work.
* Schedules shop operations and daily work loads, considering such factors as mill rolling schedules, amount of turning, grinding, and shot blasting required to dress rolls, and available workers.
* Assigns workers to duties, explains work requirements, and issues blueprints and templates for performing work.
* Inspects work in progress and completed work for conformance to specifications and shop standards.
* Prepares production and progress reports.
* Inspects roll shop equipment and arranges for maintenance and repair work.
* Initiates changes in work methods to improve worker performance and production efficiency.
* Trains workers in operation of shop machines and equipment.
* Keeps production and time records.
* Requisitions materials and supplies.
Industry:Professional careers
A professional who sets up swiss-type automatic screw-machines to perform series of machining operations, such as boring, threading, and facing metal wire, rod, or bar stock to specifications, to produce small, accurately turned parts for clocks, watches, and other timing devices. Respnsibilities include:
* Studies blueprint and layout sheet to determine machining to be done, dimensions of parts, and permissible tolerances, and plans sequence of operations.
* Visualizes movements of machine parts, workpieces, and tools in each operation in relation to others and decides on station and timing of each operation to assure efficient use of tools and time.
* Selects cutting speeds, feed rates, depth of cuts and cutting tools to be used on basis of experience and knowledge of metal properties and shop mathematics, or by referring to tables, charts, or instructions on layout sheet.
* Installs stock feed pushers, collets, and bushings, using wrenches.
* Inserts stock into stock feed mechanism and sets stock stop to control length of stock fed.
* Installs spindle speed and feed change gears to obtain required spindle speeds and tool feeds.
* Installs cams that control movement of stock and tools.
* Mounts cutting tools in toolholders and mounts them on machine, using wrenches, verifying their position with gauges and other measuring instruments.
* Cranks machine through cycle, stopping machine and adjusting tool positions and machine controls to allow for such factors as timing and clearance between moving parts.
* Starts machine, observes operation, and verifies conformance of first-run and sample workpieces to specifications, using such instruments as micrometers, calipers, limit gauges, and scales.
* Replaces worn tools.
* May operate bench grinder or cutter-grinding machine to sharpen tools.
* May set up and operate machine to machine first-run workpiece only.
* May be required to have experience with particular product, or machine of particular size, type, or trade name.
Industry:Professional careers
A professional who sets up swiss-type automatic screw-machines to perform series of machining operations, such as boring, threading, and facing metal wire, rod, or bar stock to specifications, to produce small, accurately turned parts for clocks, watches, and other timing devices. Respnsibilities include:
* Studies blueprint and layout sheet to determine machining to be done, dimensions of parts, and permissible tolerances, and plans sequence of operations.
* Visualizes movements of machine parts, workpieces, and tools in each operation in relation to others and decides on station and timing of each operation to assure efficient use of tools and time.
* Selects cutting speeds, feed rates, depth of cuts and cutting tools to be used on basis of experience and knowledge of metal properties and shop mathematics, or by referring to tables, charts, or instructions on layout sheet.
* Installs stock feed pushers, collets, and bushings, using wrenches.
* Inserts stock into stock feed mechanism and sets stock stop to control length of stock fed.
* Installs spindle speed and feed change gears to obtain required spindle speeds and tool feeds.
* Installs cams that control movement of stock and tools.
* Mounts cutting tools in toolholders and mounts them on machine, using wrenches, verifying their position with gauges and other measuring instruments.
* Cranks machine through cycle, stopping machine and adjusting tool positions and machine controls to allow for such factors as timing and clearance between moving parts.
* Starts machine, observes operation, and verifies conformance of first-run and sample workpieces to specifications, using such instruments as micrometers, calipers, limit gauges, and scales.
* Replaces worn tools.
* May operate bench grinder or cutter-grinding machine to sharpen tools.
* May set up and operate machine to machine first-run workpiece only.
* May be required to have experience with particular product, or machine of particular size, type, or trade name.
Industry:Professional careers
A professional who sets up and operates engine lathe to perform machining, such as turning, facing, boring, and threading on rotating metal castings, forgings, and bar stock, to machine tool, die, or machine parts, analyzing specifications and deciding on tooling according to knowledge of metal properties and lathe operation. Respnsibilities include:
* Studies blueprint or layout on workpiece to visualize machining to be done, and plans sequence of operations.
* Selects method of holding workpiece according to its size and shape and installs holding fixtures, such as chuck jaws, collets, arbors, and mandrels, to headstock or tailstock, using clamps or wrenches.
* Lifts workpiece manually or with hoist, and positions and secures it in holding fixture or between centers, using clamps and wrenches, and verifying position with measuring instruments, such as calipers, height gauges, and dial indicators.
* Selects feed rate, cutting speed, depth of cut, and cutting tool for each operation, according to knowledge of metal properties and shop mathematics.
* Positions and secures cutting tool in tool holder on cross-slide or tailstock.
* Moves controls to set cutting speed and feed rate and to position tool in relation to workpiece.
* Starts machine and turns handwheels to feed tool to and along workpiece, or engages automatic feed.
* Turns valve handle and directs flow of coolant against tool and workpiece.
* Verifies conformance of machined workpiece to specifications, using measuring instruments, such as micrometer, calipers, and depth gauges.
* May operate large engine lathe to machine large objects, such as ship propeller shafts, and be designated Lathe Set-Up Operator, Large.
* May offset position of tailstock to machine tapered surfaces.
* May mount gears, move levers, and engage threading dial to machine threads, using knowledge of thread cutting.
* May machine teeth on cutting tools, or duplicate contours from templates or models, using relieving or tracing attachments.
* May operate bench grinder to sharpen tools.
* May work on nonmetallic materials, such as plastics.
* May be required to have specialized experience with particular materials, product, precision level, machining process or size, type, or trade name of machine.
Industry:Professional careers
