The methods of applying the various welding processes are categorized according to the degree of operator involvement in the performance of welding operations. In manual welding, defined in the American Welding Society Standard Welding Terms and Definitions, AWS A3.0 as “welding with a torch, gun, or electrode holder held and manipulated by hand,” the welder performs the welding function and maintains continuous control of the welding operations by hand. In semiautomatic welding, defined as “manual welding with equipment that automatically controls one or more of the welding conditions,” the welder manipulates the welding gun to create the weld while the electrode is automatically fed to the arc.
5935 - Connectors, Electrical (4357)
8455 - Badges and Insignia (3093)
8010 - Paints, Dopes, Varnishes, and Related Products (2046)
6515 - Medical and Surgical Instruments, Equipment, and Supplies (1907)
ISDF (1827)
4730 - Hose, Pipe, Tube, Lubrication, and Railing Fittings (1823)
ISDA (1776)
FACR (1647)
5960 - Electron Tubes and Associated Hardware (1630)
6145 - Wire and Cable, Electrical (1629)
6505 - Drugs and Biologicals (1343)
6625 - Electrical and Electronic Properties Measuring and Testing Instruments (1241)
6640 - Laboratory Equipment and Supplies (1187)
5120 - Hand Tools, Nonedged, Nonpowered (1124)
6810 - Chemicals (1114)
MISC (1045)
5930 - Switches (1012)
5306 - Bolts (996)
5340 - Hardware, Commercial (953)
8305 - Textile Fabrics (910)
5310 - Nuts and Washers (864)
5950 - Coils and Transformers (856)
8140 - Ammunition and Nuclear Ordnance Boxes, Packages and Special Containers (797)
6520 - Dental Instruments, Equipment, and Supplies (790)
ISDD (786)
5910 - Capacitors (783)
5305 - Screws (781)
9330 - Plastics Fabricated Materials (759)
5905 - Resistor (753)
6530 - Hospital Furniture, Equipment, Utensils, and Supplies (745)
5945 - Relays and Solenoids (733)
5961 - Semiconductor Devices and Associated Hardware (707)
6240 - Electric Lamps (662)
8415 - Clothing, Special Purpose (660)
5330 - Packing and Gasket Materials (583)
SESS (581)
ISDN (581)
5940 - Lugs, Terminals, and Terminal Strips (564)
8030 - Preservative and Sealing Compounds (554)
4720 - Hose and Flexible Tubing (552)
6610 - Flight Instruments (540)
PACK (539)
8915 - Fruits and Vegetables (531)
5920 - Fuses, Arrestors, Absorbers, and Protectors (512)
5820 - Radio and Television Communication Equipment, Except Airborne (503)
Steel (908)
銃 (621)
Demolition Materials (549)
Cartridge and Propellant Actuated Devices and Components (524)
Paint and Related Coating (456)
Fuzes and Primers (454)
Optical Sighting and Ranging Equipment (451)
Medical Device and Implant (427)
Building (414)
Petroleum (378)
Rockets, Rocket Ammunition and Rocket Components (368)
Nonferrous Metal and Nonferrous Alloy (367)
Ammunition, through 30mm (349)
Fire Control Computing Sights and Devices (338)
Aircraft Air Conditioning, Heating, and Pressurizing Equipment (334)
Parachutes; Aerial Pick Up, Delivery, Recovery Systems; and Cargo Tie Down Equipment (324)
Sports and Recreation (316)
Land Mines (276)
Nuclear Technology (274)
Consumer Product Evaluation (267)
Aircraft Hydraulic, Vacuum, and De-icing System Components (263)
Bulk Explosives (261)
Torpedos and Components, Inert (258)
Plastic Pipe (248)
Nondestructive Testing (246)
Miscellaneous Aircraft Accessories and Components (231)
Aerospace Material (225)
Geotechnical Engineering (217)
Miscellaneous Fire Control Equipment (216)
Ammunition, over 30mm up to 75mm (208)
Fire Control Radar Equipment, except Airborne (197)
Copper (192)
Ammunition, 75mm through 125mm (192)
Bombs (192)
Environmental Toxicology (187)
Analytical Chemistry (180)
Road and Paving (177)
Pyrotechnics (175)
Rubber (166)
Electrical and Magnetic Conductor (162)
Security System Pedestrian and Walkway Safety (157)
Military Chemical Agents (156)
Electronics (153)
Specialized Test and Handling Equipment, Nuclear Ordnance (150)
Industrial Hygiene and Safety (147)
