What Is Flash Welding?

Flash welding is a process and connection method that produces two-piece atomic bonding between two workpieces by heating, pressing, or both, with or without filler materials. Wide range of welding applications, both metal and non-metal.

Flash welding

There are more than 40 kinds of metal welding methods, which are mainly divided into three categories: fusion welding, pressure welding and brazing.

Fusion welding is a method of heating the workpiece interface to a molten state during the welding process and completing the welding without applying pressure.

The health hazards of flash welding are mainly caused by the radiation and toxic fumes or gases generated by the process. These hazards include:

Eye damage

(1) Infrared radiation emitted by molten metal causes thermal cataracts, resulting in blurred vision;

(2) Arc eyes caused by ultraviolet radiation emitted by the process, causing eye pain and tears;

(3) Other injuries, such as corneal ulcers and conjunctivitis caused by foreign objects (slag and cutting sparks, etc.);

(4) skin irritation and redness caused by excessive exposure to radiation;

2. Inhale the following smoke or gas produced in the process

(1) The fumes of new metal oxides cause metal fever;

(2) Toxic metal fumes such as lead, cadmium, beryllium, etc .;

(3) Toxic gases such as nitrogen oxides and fluorides cause irritation of the bronchi and lungs;

(4) Burned by flame, hot slag or workpiece surface;

(5) Physical injury caused by manual handling of cylinders or large workpieces.