Photo credits

An end mill cutting a part held in a vise Photo: Senior Airman David Owsianka Public domain Sparks fly at metal tech 150623-F-CB366-093

MIG welding a steel box Photo: U.S. Navy photo by Mass Communication Specialist 2nd Class Kevin S. O'Brien Public domain US Navy 091114-N-5549O-135 Robert Bowker welds the initials of Susan Ford Bales into the keel of the aircraft carrier Gerald R. Ford (CVN 78) during a keel laying and authentication ceremony

Grinding a part in a fabrication shop Photo: USDAgov Public domain APHIS-Aircraft and Equipment Operations (AEO), Aircraft Operations and Warehouse (20230622-CDP-APHIS-0829)

A steel building frame going up Photo: PEO ACWA CC BY 2.0, cropped and resized Pueblo Chemical Agent-Destruction Pilot Plant Biotreatment Electrical Building Steel Beams (4365303482)

A press brake for bending sheet metal Photo: Asurnipal CC BY-SA 4.0, cropped and resized, our version shared under the same licence Kantmaschine LVD PPS 200-30 02

A fiber laser cutting head at work Photo: Contour CC0 Laserkop van Amada FO-4020NT 4kW, industriële laser

Powder coating parts in a spray booth Photo: Maschinologen CC BY-SA 4.0, cropped and resized, our version shared under the same licence Pulverbeschichtung

Sandblasting in a protective hood Photo: National Institute for Occupational Safety and Health (NIOSH) from USA Public domain Sandblasting with protective gear (9245784107)

Aluminum parts on a rack in an anodizing tank Photo: NASA's Scientific Visualization Studio - Advocates in Manpower Management, Inc./Sophia Roberts, KBR Wyle Services, LLC/Scott Wiessinger, University of Maryland College Park/Jeanette Kazmierczak, ADNET Systems, Inc./Aaron E. Lepsch Public domain Anodizing NICER’s Patches (SVS14609 - NICER Anodized-00008)

A machinist working on a large part Photo: NOIRLab/NSF/AURA CC BY 4.0, cropped and resized Ron Harris at the Machine Shop (01005-CC)

A machinist at a CNC mill in a small shop Photo: Rob NREC CC BY-SA 3.0, cropped and resized, our version shared under the same licence NREC Machine Shop Workstation

A stainless steel handrail on a stair Photo: Eskatt CC BY-SA 3.0, cropped and resized, our version shared under the same licence BALUSTRADA

A wrought iron gate between brick posts Photo: FF-11 CC0 Wrought iron gate in cemetery Großostheim (1)

Spray painting a metal rail Photo: Staff Sgt. Brandon Boyd Public domain Oregon Airmen provide humanitarian assistance to Romania 150509-Z-LJ997-125

An EDM machine drilling a small hole in a metal block Photo: Qw5646 CC BY-SA 3.0, cropped and resized, our version shared under the same licence Small hole drilling EDM

Polishing a brass plate by hand Photo: U.S. Navy photo by Mass Communication Specialist 3rd Class Matthew Bookwalter Public domain US Navy 100213-N-1688B-215 Boatswain's Mate 3rd Class Ryan Cash polishes the brass of a wildcat on the foc'sle of the guided-missile cruiser USS Hue City (CG 66)