Handbook of Occupational Groups and Families		Classification Programs Division
Release Date:  August 2001		Section Thirty-eight of Sixty-six

    3800 - METAL WORK FAMILY   

This job family includes occupations involved in shaping and forming metal and making and repairing metal parts or equipment. Includes such work as the fabrication and assembly of sheet metal parts and equipment; forging and press operations; structural iron working, boilermaking, shipfitting, and other plate metal work; rolling, cutting, stamping, riveting, etc. Does not include machine tool work.

Throughout the following information, an asterisk (*) stands for series with a published standard and a double asterisk (**) stands for series with a published flysheet.

Occupations in this family are:

3802 Metal Forging*

This occupation includes jobs involved in the process of forging metal into desired shapes by compressing between a hammer or ram and an anvil in forging machines such as drop hammers, forging presses, coining presses, forging rolls, and upsetters. The work includes setting up, adjusting, operating, and making minor repairs to the forging machines, and the application of heat treating processes such as annealing, tempering, and hardening.

3806 Sheet Metal Mechanic*

This occupation includes jobs involved in the fabrication, modification, repair, assembly, and installation of sheet metal parts, items, and assemblies. Metals include but are not restricted to the following metals: galvanized and black iron, aluminum and aluminum alloys, stainless steel, copper, and brass sheets, lead alloys, and bronze. Sheet metal has no specific thickness. Metals one-fourth inch thick or less are usually considered to be sheet metal. (Note: The layout and operational skills involved in working with heavier gauge plate are sufficiently similar to warrant inclusion in this series.)

3807 Structural/Ornamental Iron Working

This occupation includes jobs involved in fabricating, installing, and repairing steel framework and other parts of building, bridges, and other structures and equipment; fitting together and installing iron grills, gratings, stairways, enclosures, and other ornamental ironwork; and/or assembling prefabricated metal parts such as slotted angle iron and panels into items such as work stands, scaffolds, dollies, and positioning devices. The work includes following blueprints, measuring for correct alignment, cutting pieces to size, drilling holes, and fastening members together by bolting, riveting, welding, etc.

3808 Boilermaking*

This occupation includes jobs involved in the modification, fabrication, repair, assembly, and installation of boilers, tanks, condensers, uptakes, stacks, other pressure vessels, and similar structures of heavy gauge metal plate.

3809 Mobile Equipment Metal Mechanic*

This occupation includes jobs involved in maintaining and repairing mobile equipment bodies and mainframe groups. The work requires a knowledge of mobile equipment body construction, the ability to determine the extent of damage and most economical methods of repair, and the skill to remove, fabricate, reshape, and replace or repair such damage as dents, tears, wrinkles, cuts and creases by cutting, knocking out, welding, filling, and sanding. Work is performed on such mobile equipment as passenger cars, trucks, buses, warehouse tractors, forklifts, ambulances, cranes, firetrucks, and mobile construction equipment.

3816 Engraving

This occupation includes jobs involved in engraving lettering and ornamental designs on metal and plastic pieces such as nameplates, silverware, trophies, lighters, and jewelry according to sketches, diagrams, photographs, or sample work pieces, using handtools or pantograph engraving machine.

3819 Airframe Jig Fitting

This occupation includes jobs involved in assembling, fitting, and aligning airframe jigs used in the reworking of aircraft control surfaces, wings, and fuselage sections. The work requires the ability to visualize the configuration of the jig from multiple, cross-referenced engineering prints and to determine the tolerance with which the jig must conform; skill in using optical alignment equipment to measure and spot distances and angles so that reference points can be physically located, mechanically adjusted, and set on the jig framework within close tolerances; and knowledge of solid geometry, trigonometry, and algebra to compute reference locations.

3820 Shipfitting*

This occupation includes jobs involved in the modification, fabrication, repair, assembly, and installation of various metal structural parts of ships and other vessels. The work requires knowledge of shipfitting equipment, structures, and metals; skill in laying out, cutting, and shaping of metal parts; and ability to position, align, and secure parts and subassemblies on ships and other vessels.

3833 Transfer Engraving

This occupation includes jobs involved in plaster of paris casting, electroforming (electrometallurgy), and setting up and operating Janvier die cutting machines (transfer engraving machines) to make exact reproductions or reductions, master dies and hubs, brass intermediates, wax enlargements, plaster of paris molds, and electrotypes (galvanos) from sculptors' original models of United States and foreign coinage, medals, military insignia, Governmental and special award citations, emblems, and lapel buttons.

3858 Metal Tank and Radiator Repairing

This occupation includes jobs that involve the troubleshooting, repair, modification, and testing of aircraft and automotive radiators, air coolers, oil temperature regulators, pontoons, and aircraft tanks and reservoirs made of various kinds of metal such as aluminum, copper, brass, stainless steel, and black iron. The work includes locating and repairing leaks, removing defective parts, and installing new parts.

3869 Metal Forming Machine Operating*

This occupation includes jobs that involve setting up, adjusting, and operating metal forming machines such as sheet metal rolls, brakes, shears, hydraulic or mechanical presses, band saws, blanking presses, punch presses, cut-off saws, flanging machines, combination beading machines, planishing machines, shrinking machines, nibblers, power riveter, turret punches, metal stitching machines, drop hammers, "Yoder" hammers and rivet making machines that cut, punch, stamp, draw, shape, and roll metal sheets, strips, or wire into desired shapes or contours (e.g., coin production jobs that involve setting up and operating knuckle action or hydraulic presses and drop hammers to produce proof and finished coins; drill and crank-type presses to perform trimming, piercing, and blanking operations; and upsetting equipment to form a raised edge along the periphery of coin and medal blanks to produce a planchet acceptable for stamping.) The work includes installing dies, punches, and other accessories; aligning the mating parts allowing for clearances; feeding the sheet metal into the machine; and manipulating the controls to perform the operations.

3872 Metal Tube Making, Installing, and Repairing

This occupation includes jobs involved in laying out, fabricating, bending, repairing, testing, and installing rigid and flexible metal tubing and welded tube assemblies for use in aircraft hydraulic, fuel, oxygen, and oil systems, and conduits for wiring or cable installations; and forming flat, angular, and channel sheet metal parts into metal tubing and pipe varying radii. Includes working from blueprints; determining dimensions; selecting or manufacturing bending dies, clamps, and mandrels and mounting them on the machine; making tube bending templates that are used to indicate the number of bends, bend radii, and angle and rotation of bends; and setting up, adjusting, and operating manual, pneumatic, and/or small and large hydraulic tube bending machines, spinning swages, hydraulic forming machines, hydraulic presses, milling machines, and engine lathes to bend pipe, tubing, and sheet metal stock to accurately determined angles and specified radii, to cold draw, expand, bead, and double flare pipe and tubing, and to cut and finish tubing.