WELDING OF HIGH-HARDNESS ARMOR STEEL

WELDING OF HIGH-HARDNESS ARMOR STEEL

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Armor steels are difficult to weld due to the King Poster Bed with storage high percentage of carbon.The coarse-grained area and the fusion line in the welded joint are sensitive areas due to the high hardness and the possible presence of hydrogen produced during the welding process.Furthermore, multi-purpose armored vehicles made of armored steel are exposed to dynamic loading due to traffic on rough terrain.High hardness in the coarse-grained area of the heat-affected zone and dynamic loading can cause cracks.In the weld metal zone, a crack created during the welding process or due to pores can quickly propagate toward the sensitive fusion line, after which its accelerated growth can occur.

Based on the above, achieving a welded joint without porosity or cracks for armor steel is necessary.This paper investigated the welding process of high-hardness armor steel with two regimes.The test aims to achieve an optimal hardness level and a compromise between ballistic requirements and toughness.The test ULT DIGEST ENZ URGENT CARE results showed that a high-quality welded joint and an optimal balance between hardness and toughness are achieved with increased heat input.