The application of HUABAO welding stress relief technology in military products..........

Abstract The residual welding stress in military welding components is a problem that cannot be ignored. The adoption of HUABAO technology for eliminating welding stress makes it easier, more convenient, and more thorough to eliminate welding stress.

Welded components are playing an increasingly important role in military product production, and the welding stress present in welded components is a problem that cannot be ignored. It directly affects the product's load-bearing capacity, fatigue performance, corrosion resistance, etc. As a new method to eliminate stress, the application of Hooke's stress elimination technology is of great significance to military product production.

HUABAO stress elimination technology has the following obvious technical advantages:

●The most thorough method to completely eliminate residual tensile stress and produce ideal compressive stress is the process of simultaneous aging. In the cases where residual stress is eliminated using different aging methods, the percentages are as follows: vibration aging 30-55%, thermal aging 35-80%, and HUABAO energy aging over 80%.

●The fatigue strength of the welded joint can be increased by 50%-120%. The fatigue life can be extended by more than 5 times.

●This treatment provides a smooth transition at the weld toe, removing undercut, undercut, and other defects, thereby effectively improving the geometry of the weld toe and greatly reducing the stress concentration factor at the weld toe.

●The corrosion resistance of the weld and its heat-affected zone in a corrosive environment is significantly improved.

●HER treatment can completely replace heat treatment and vibration aging methods, and the processing method is simple, stable, and reliable. It is particularly suitable for eliminating welding stress in localized welding repair areas of mechanical components, as it can be performed at any time and in any process.

●It eliminates surface micro-cracks and slag defects at the weld toe and suppresses the premature initiation of cracks.

●Local reinforcement treatment creates a certain compressive stress on the surface of the part (and the preset compressive stress value is controllable), thereby improving the surface quality and fatigue life of the part.

●HER treatment can significantly enhance the fatigue strength and fatigue life of the welded joint by improving several factors affecting the fatigue performance of the weld, such as the geometry of the weld toe, residual stress, micro-cracks and slag defects, and surface reinforcement.

It is because of these special technical advantages that HER treatment is increasingly being applied in the production and repair of military welding structural components..........

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