Tends machine and ovens to mix and dry ingredients used to fabricate carbide cutting-tool inserts, following work orders and charts

reads work order to determine amount and grade of carbide specified. Computes amounts of ingredients required, using charts. Scoops ingredients from... [+] More

Tends machine and ovens to mix and dry ingredients used to fabricate carbide cutting-tool inserts, following work orders and charts

reads work order to determine amount and grade of carbide specified. Computes amounts of ingredients required, using charts. Scoops ingredients from canisters, and weighs ingredients on scale to obtain specified amounts. Pours ingredients into cylindrical-tumbler mixing machine, starts tumbler, and stops it after specified time. Pours mixed ingredients into pans, and places them in decarbonizing oven to dry and burn off impurities. Removes pans from oven, adds other ingredients, and sifts mixture through screen to obtain powder of even consistency. Cleans equipment after each batch. [-] Less

Fabricates tungsten-carbide cutting tips for use on lathes, planers, milling machines, and other metalworking tools, using mechanical or hydraulic press, furnaces, cutting and grinding wheels, and precision-measuring instruments

weighs cobalt, carbon, tungsten, titanium, and other powdered metals on balance scale to... [+] More

Fabricates tungsten-carbide cutting tips for use on lathes, planers, milling machines, and other metalworking tools, using mechanical or hydraulic press, furnaces, cutting and grinding wheels, and precision-measuring instruments

weighs cobalt, carbon, tungsten, titanium, and other powdered metals on balance scale to obtain specified molding mixture. Pours mixture from pans into molds or into hoppers for automatic feeding into molds in press. Turns valves on press to compress mixture into billet. Removes billet from press. Sets automatic feed, time, and temperature controls on sintering furnace. Feeds billets into furnace to fuse metals together. Removes billets from furnace and cuts and grinds them into cutting tips, using diamond cutting wheel and electric grinding wheel. Measures cutting edges of tips to ensure attainment of specified tolerances, using gauges, rulers, micrometers, and protractors. Sets pyrometer controls of heat-treating furnace, and feeds cutting tips into furnace to harden them. May regrind cutting tips and remeasure for conformance to specifications. [-] Less

Fabricates tungsten-carbide cutting tips for use on lathes, planers, milling machines, and other metalworking tools, using mechanical or hydraulic press, furnaces, cutting and grinding wheels, and precision-measuring instruments

weighs cobalt, carbon, tungsten, titanium, and other powdered metals on balance scale to... [+] More

Fabricates tungsten-carbide cutting tips for use on lathes, planers, milling machines, and other metalworking tools, using mechanical or hydraulic press, furnaces, cutting and grinding wheels, and precision-measuring instruments

weighs cobalt, carbon, tungsten, titanium, and other powdered metals on balance scale to obtain specified molding mixture. Pours mixture from pans into molds or into hoppers for automatic feeding into molds in press. Turns valves on press to compress mixture into billet. Removes billet from press. Sets automatic feed, time, and temperature controls on sintering furnace. Feeds billets into furnace to fuse metals together. Removes billets from furnace and cuts and grinds them into cutting tips, using diamond cutting wheel and electric grinding wheel. Measures cutting edges of tips to ensure attainment of specified tolerances, using gauges, rulers, micrometers, and protractors. Sets pyrometer controls of heat-treating furnace, and feeds cutting tips into furnace to harden them. May regrind cutting tips and remeasure for conformance to specifications. [-] Less

Tends machine that mixes, blends, or kneads ingredients to make dry-food products, such as baking powder, gelatin desserts, pie thickeners, and ice cream powders

weighs or measures ingredients and dumps them into mixer or opens valve to admit specified amounts of... [+] More

Tends machine that mixes, blends, or kneads ingredients to make dry-food products, such as baking powder, gelatin desserts, pie thickeners, and ice cream powders

weighs or measures ingredients and dumps them into mixer or opens valve to admit specified amounts of each ingredient into mixer from storage hopper. Admits steam or coolant into jacket of mixer and sets thermostat to maintain temperature in mixer at specified level. Regulates mixing time and speed for mixing, blending, or kneading, and starts machine. May perform acidity tests, using ph meter or may submit samples to laboratory. May add additional ingredients and remix batch on basis of test results or laboratory recommendation. May start conveyor to transfer dry-food product to next process. May be designated according to food product mixed as baking-powder mixer. [-] Less

Tends equipment that pulverizes industrial bort and separates particles into grades of diamond powder

pours bort into ball mill and starts machine to grind bort. Removes powder from mill and pours it through sieves to separate particles. Pours sifted particles into... [+] More

Tends equipment that pulverizes industrial bort and separates particles into grades of diamond powder

pours bort into ball mill and starts machine to grind bort. Removes powder from mill and pours it through sieves to separate particles. Pours sifted particles into glass tank containing chemical mixture. Siphons liquid containing particles from tank after specified time into glass jars. Siphons liquid, following settlement of particles, from top of jars. Dumps particles onto table and dries them with infrared lamp. Weighs and bottles powder and labels containers. [-] Less

Tends powder-mill pulverizer that grinds granular sugar into fondant or powdered sugar

starts powder mill, conveyors, dust collectors, and humidifying equipment to ready station for operations. Opens valves to admit and regulate flow of sugar into pulverizer. Adjusts controls to compensate... [+] More

Tends powder-mill pulverizer that grinds granular sugar into fondant or powdered sugar

starts powder mill, conveyors, dust collectors, and humidifying equipment to ready station for operations. Opens valves to admit and regulate flow of sugar into pulverizer. Adjusts controls to compensate for changes and fluctuations in production. Dissolves specified amounts of sugar in water and spins solution in centrifugal device to determine starch percentage. Regulates starch flow to bring percentage within specified limits and prevent powder from caking. Dissolves other samples to test them for grist. Cleans dust lines, scrolls, and chutes and clears hopper and elevator blockades. Observes dials and gauges to ascertain that grinders are not overloaded or overheated. Inspects chains, belts, and scrolls for signs of wear. Keeps records of tests and production. May be designated according to type of sugar pulverized as powdered-sugar-pulverizer operator; or equipment operated as fondant-machine operator. [-] Less

Drives specially modified truck to transport gunpowder from freight cars and motor trucks to and from storage magazines and blending houses. Stores kegs, drums, and boxes of various type powders according to prescribed safety methods and follows safety regulations in transit.

Screens, melts, and pours tnt into projectile cases

pours tnt powder into hopper of screening machine which reduces lumps by agitation. Pours powder into revolving steam-heated kettle and adjusts controls to permit steam to flow in pipes around kettle, heating and... [+] More

Screens, melts, and pours tnt into projectile cases

pours tnt powder into hopper of screening machine which reduces lumps by agitation. Pours powder into revolving steam-heated kettle and adjusts controls to permit steam to flow in pipes around kettle, heating and melting tnt. Empties melted explosive into buckets through valves. Tests temperature of tnt with thermometer and cools it to prescribed temperature, using power-operated paddle. Pours molten tnt into shell and bomb cases. Breaks off crystallized tnt scrap and returns it to melting pot. Drills threaded holes in charge into which boosters are loaded. Loads shells and bombs with tnt powder, pouring explosive into cases by hand and pressing powder down with hydraulic press. [-] Less