Archive

Month: June 2026

THE 14 MOST WIDELY USED ASTM STEEL SPECIFICATIONS IN INDUSTRY

Fourteen ASTM specifications cover common carbon steels, HSLA steels, and quenched and tempered structural steels. They are: A36,…

# WHAT IS THE HISTORY OF WELDING HELMETS? The history of welding helmets is closely tied to the development of welding processes themselves, particularly arc welding, which emerged in the late 19th century. ## Early Beginnings (Late 1800s) When Auguste de Méritens and later Nikolai Benardos and Stanisław Olszewski pioneered arc welding in the 1880s, workers had virtually no eye or face protection. The intense ultraviolet (UV) and infrared (IR) radiation emitted by the electric arc caused severe eye injuries known as arc eye or photokeratitis, as well as burns to exposed skin. ## First Protective Measures (Early 1900s) The earliest forms of eye protection consisted of simple tinted glass lenses held in hand-held frames, similar to the goggles used by glassblowers and foundry workers. These were rudimentary and offered limited protection, forcing welders to hold them in place with one hand while working with the other. As oxyfuel welding and cutting (oxy-acetylene) became

The first welding helmets were made of pressed cardboard; these were hand-held shields used in the 1930s. The…

# HOW WAS THE DEVELOPMENT OF THE COATED ELECTRODE AND WELDING PROCESSES?

At Doctor Welding we continue discussing the history of welding, and it is now the turn of shielded…

THE HISTORY OF THE FIRST ELECTRIC WELDING EQUIPMENT.

Metal joining has a long history, as it has always accompanied the development of civilizations, and although for…

PROCESOS SOLDADURA

PROCESOS SOLDADURA

WHAT IS THE FUNCTION OF GAS IN THE GMAW – MIG/MAG PROCESS?

The shielding gas in GMAW welding is a vital element; it is the third member of the triangle…