- Industri: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who tends machine that conveys rectangular glass over grinding and polishing wheels to obtain pencil edge and to polish edges. Responsibilities include:
* Places glass on grooved conveyor with top edge of glass against guide.
* Attaches weights to top of glass or pulls lever to lower pressure roller that forces glass against grinding and polishing wheels.
* Turns handwheel to regulate speed of conveyor according to type of glass.
* Starts flow of coolant and polishing compound to grinding and polishing wheels.
* Turns glass to finish other edges and removes glass from machine.
* Places glass on skid.
* Observes quality of glass edge to determine need for wheel dressing or adjustment, and lowers or raises wheel by turning nut with wrench; or reads ammeter to determine grinding load and notifies maintenance department to adjust wheels.
* May wipe polishing compound from edges with cloth.
* May maintain record of number of pieces edged.
Industry:Professional careers
A professional who tends machine to grind and polish slate products, such as flooring, mantels, and coping, to specified thickness and cut grooves in bottom surface of slate to increase adhesion to mortar bed. Responsibilities include:
* Selects spacers (width guides) according to distance between grooves and positions saw blades and spacers on machine arbor, using wrench.
* Turns handwheels to move grinding wheels and blades into grinding and sawing position according to thickness specified for stone and depth of grooves.
* Places slate strip on conveyor, moves conveyor guides against stone, and tightens guides in position, using wrench.
* Turns valve to spray water (coolant) on grinding wheels and sawing blades.
* Starts machine and places slate strips on conveyor that feeds strips between grinding wheels and saw blades of machine.
* Removes stone from conveyor and places stone on pallet.
Industry:Professional careers
A professional who tends machine that smooths and polishes asbestos disk pads for brake linings. Responsibilities include:
* Places disk pads on automatic feed tray of machine.
* Adjusts grinding head of machine according to specified thickness of polished pads.
* Starts machine that automatically feeds pads through enclosed grinding and washing units.
* Observes operation to detect machine malfunctions.
* Stops machine and clears detected jams.
* Measures random sample of polished disk pads to determine if pads are ground according to specifications, using caliper.
* Adjusts grinding mechanism as required, using handtools.
* Records data, such as production and downtime, when machine breakdown occurs.
Industry:Professional careers
A professional who tends abrading machines that polish or lap surface of semiconductor wafers. Responsibilities include:
* Reads work order to determine specifications.
* Loads wafers or carriers containing wafers onto polishing or lapping machine.
* Adjusts machine controls or loads programmed control media in machine to regulate pressure, time, and slurry flow.
* Starts lapping machine that removes saw marks and reduces wafer thickness or starts polishing machine that polishes wafers.
* Observes machine operation and listens to sounds of belts, cams, and abrading wheel to detect machine malfunctions.
* Adjusts mechanisms or requests repairs as necessary.
* Stops machine at prescribed time, removes wafers from machine, and rinses wafers with water to cool wafers and remove slurry.
* Examines wafers for defects, and measures wafer thickness, using thickness gauge.
* May clean wafers, using chemical solutions, water, or gases, to remove contaminants from wafer surface.
* May mount wafers onto carriers.
* May mix slurry.
* May tend machine that rounds wafer edges and be designated edge-round tender.
* May be designated according to machine tended as lapping machine tender.
Industry:Professional careers
A professional who tends machine that grinds and polishes corner edges of flat glass to specified radius. Responsibilities include:
* Turns dials to set timer of grinding and polishing wheels to specified settings.
* Moves lever, turns knob, and presses button to open water valve to start flow of water against grinding wheel, open air pressure valve, and start air pump of machine.
* Breaks off specified amount of each corner of glass sheets, using glass pliers, positions glass sheets against stops on padded table surface of machine, and presses button to start automatic grinding and polishing cycles of machine.
* Turns glass sheets to position each corner for processing.
* Observes and feels corner edges to determine whether reprocessing is necessary.
* Places processed glass on racks, and separates glass with pieces of cardboard.
Industry:Professional careers
A professional who tends abrading machines that roughen surface of semiconductor wafers to distinguish front from back. Responsibilities include:
* Adjusts controls to set speed, time, and pressure of abrading belts according to specifications.
* Loads container of wafers into abrading machine and starts machine that automatically abrades surface of wafer.
* Removes abraded wafers from machine and inspects wafers to detect abrading defects, such as cracks, using microscope.
* Replaces worn abrading belts.
Industry:Professional careers
A professional who feeds and off bears automatic edging machines that grind and polish edges of rectangular glass or mirrors. Responsibilities include:
* Removes rectangular pieces of glass or mirror from discharge end of beveling-and-edging machine, turns glass over, and feeds glass onto conveyor of machine to finish other edge.
* Wipes polishing compound from edge of glass.
* Places glass or mirror on skid.
* May work as member of team.
* May be designated beveling-machine-operator helper; straightedge-machine-operator helper.
Industry:Professional careers
A professional who feeds molded lens blanks into automatic burr-grinding machine that removes burrs and sprues, smooths edges, and ejects blanks from machine.
* Catches blanks ejected from machine and stacks them in trays prior to grinding and polishing.
* May perform particular phase of operation, such as feeding blanks into machine or catching and stacking ejected blanks.
Industry:Professional careers
A professional who off bears sandstone slabs from edge-grinding machine and sands edges, using sandpaper-covered block. Responsibilities include:
* Pulls sandstone slabs emerging from machine onto turntable and sands edges of slabs, using sandpaper-covered block to smooth irregularities and sharp edges on stone.
* Pushes slab onto roller conveyor to return slab to edge-grinding machine or onto conveyor for subsequent processing.
* Lubricates and cleans machine, and cleans work area.
Industry:Professional careers
A professional who feeds and regulates machine that smooths edges of automobile window glass.
Industry:Professional careers
