- Industri: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who tends single- or multiple-spindle drill presses that drill, tap, ream, or countersink holes in metal workpieces according to specifications. Respnsibilities include:
* Lifts workpiece manually, or using hoist, and positions and secures workpiece in drilling jig or fixture on machine table, using clamps and wrenches.
* Starts machine and feeds workpiece to cutter or vice versa, or engages automatic feeding mechanism.
* Turns valve to direct flow of coolant and cutting oils over cutting area.
* Observes operation and releases lever or turns handwheel to raise cutting tool from workpiece when machining is completed.
* Inspects or measures machined workpiece for conformance to specifications and shop standards, using instruments, such as fixed, plug, depth, and thread gauges, calipers, micrometers, and templates.
* Changes worn cutting tools, using wrenches.
* May machine plastics or other nonmetallic materials.
Industry:Professional careers
A professional who tends one or more semiautomatic machines that perform machining operations, such as drilling, boring, tapping, and chamfering holes in clock or watch parts, such as balance wheels, watch plates, and bridges. Respnsibilities include:
* Positions and clamps part to machine table under cutting tool or inserts part in machine nest, chuck, or over positioning pins in spindle.
* Depresses pedal or moves controls to start machine that automatically machines part to specifications.
* Removes part from machine at completion of cycle or activates control that ejects part from machine.
* Inspects and measures part for conformance to specifications, using loupe and fixed gauges.
* Changes and replaces worn or broken tools.
* Cleans metal chips from machine with brush or airhose.
* Notifies supervisor when machine malfunctions.
* May tend battery of one kind of machine which may be set up to perform one or several different operations.
* Workers may be designated according to machine tended or operation performed as balance-wheel-screw-hole driller; boring-machine operator; chamfering-machine operator; reamer; automatic tapping-machine operator.
Industry:Professional careers
A professional who tends machine that reams and chamfers brass and copper tubing and rods to smooth inside edges of tubing and to remove burrs and sharp edges from ends of tubing and rods. Respnsibilities include:
* Positions and fastens cutting tool in toolholder and installs funnel-shaped sleeve on machine through which tubing or rod is guided.
* Starts machine and inserts tubing or rod in sleeve to ream part way through tube or chamfer end of tube or rod.
* Reverses tube or rod to ream or chamfer opposite end.
* Changes cutting tool as required, using allen wrench.
* May pack tubing and rods into cartons.
Industry:Professional careers
A professional who sets up and operates vertical contour-band saw to cut straight, curved, irregular, or internal patterns in metal or plastic stock, according to specifications, utilizing knowledge of sawing techniques. Respnsibilities include:
* Reads work order or blueprints to locate cutting layout lines on stock, to determine dimensions and tolerances, and to determine metal to be cut, type of blade to be used, blade tension, cutting speed, feed rate, table angle, and positions of table stops and guides.
* Relieves saw blade support and drive-wheel tension, using handtools.
* Places saw blade over wheels and resets tension to change blade and adjust tension.
* Turns controls to set prescribed cutting speed, feed rate, and table angle.
* Loosens table stops and guides, using handtools, and positions them to align and secure workpiece.
* Places stock on cutting table, either manually or using hoist, and clamps it into position.
* Cuts saw blade, threads it through hole drilled in stock, welds blade together, using butt-welding attachment, and files weld smooth to cut internal pattern in stock.
* Starts saw and manually guides stock along layout lines to cut pattern, or engages automatic feed to cut straight line.
* Turns control to start airflow to blow metal cuttings away from kerf.
* Verifies conformance to specifications, using ruler, calipers, fixed gauges, templates, and micrometers.
* May make precision cuts, using magnifier to see layout lines.
* May calculate and mark layout lines, according to product specifications.
* May be required to have experience with particular product or size, type or trade name of machine.
Industry:Professional careers
A professional who sets up and operates power saws to cut, slot, groove, miter, and trim metallic and nonmetallic workpieces according to specifications. Respnsibilities include:
* Selects and installs blade on machine, using handtools.
* Sets controls to adjust speed, feed rate, and blade tensions.
* Positions guides, stops, holding blocks, or other fixtures to secure and direct workpiece, using handtools and measuring devices.
* Scribes reference lines on material as guide for sawing operations, according to blueprints, templates, sample parts, or specifications.
* Mounts workpiece in holding device, manually or using hoist.
* Operates saw to cut along scribed lines.
* Verifies dimensions of finished workpiece, using measuring devices.
* May weld and anneal saw blades.
Industry:Professional careers
A professional who sets up and operates metal-sawing machines, such as hacksaw, bandsaw, circular saw, friction saw, and rubber-disk saw to cut metal stock to dimensions. Respnsibilities include:
* Reads job order for specifications, such as material, type, and size of stock, and dimensions to be cut.
* Obtains and transfers stock to machine, manually or with hoist.
* Installs saw blade and sets blade tension and cutting speed for specified operation.
* Sets saw blade angle to obtain desired angle cuts, using wrench.
* Sets stops and guides to control dimension of cut, using steel rule and wrenches.
* Positions and secures stock against stops or in feeding device.
* Turns valve to start flow of coolant against cutting area.
* Starts machine and observes operation.
* Measures work for conformance to specifications, using rule.
* Marks identifying data on workpiece.
* Replaces defective cutting blade or wheel, using handtools.
* May be required to have experience with custom or production work or with particular material, product, size of workpiece, or type or trade name of machine and be designated accordingly.
Industry:Professional careers
A professional who operates scroll saw or jigsawing-and-nibbling machine to cut or trim hollowware items, such as trays, platters and vegetable dishes into specified shape, performing any combination of following tasks. Respnsibilities include:
* Marks guidelines on workpiece by tracing from template or sample hollowware, using pencil or scribe.
* Selects jigsaw or scroll saw blade according to intricacy of outline and gauge of metal, and mounts in drive spindle, using wrench.
* Starts machine and manually guides workpiece under blade along cutting line to cut workpiece to specified shape or along edge of ornamentation to trim flash from molded items.
* Removes saw blade and installs nibbling punches in spindle and bed of machine.
* Turns thumbscrew to adjust depth of stroke to thickness of metal.
* Starts machine and guides edge of workpiece between reciprocating punches to smooth and trim along edges of mounts (decorative) trim attached after jigsawing by silverware assembler.
* May file burrs and rough edges from workpiece.
Industry:Professional careers
A professional who tends band or circular saw to cut, miter or groove bar, tube, or sheet metal stock to specified dimensions or shape. Respnsibilities include:
* Places stock on table or in automatic feed mechanism.
* Pulls lever or depresses pedal to lower saw blade and cut stock to size or shape.
* Removes cut stock from table and stacks for removal.
* May stamp identifying marks on stock, using die and hammer.
* May work as member of team when cutting structural beams.
* May assist in changing saw blades and setting table stops and guides.
Industry:Professional careers
A professional who tends debridging machine (circular saw) that cuts metal bridge from bottom length of cement-filled aluminum extrusions used in manufacturing windows and doors. Respnsibilities include:
* Installs cutting blades in machine, using wrenches.
* Turns controls to set machine cutting speed, blade height, and feed roller position.
* Places extrusions on intake conveyor and guides extrusions into contact with feed roller for automatic cutting.
* Removes cut extrusion from off-feed conveyor, and examines exposed cement along cut to detect overlapping metal.
* Adjusts machine settings to remove metal according to company standards.
* Stacks extrusions on cart and places cardboard sections between layers.
Industry:Professional careers
A professional who feeds magnesium bar stock into milling machine for grinding into powder. Respnsibilities include:
* Saws bar stock into sections, places sections in jig of milling machine, and turns handwheel to feed sections to milling cutter.
* Collects cuttings with air suction hose and dumps them into grinding mill.
* Cleans magnesium scrap from equipment and work area to eliminate fire hazard.
Industry:Professional careers
