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Hot work tool steels, such as H11 (1.2343) and H13 (1.2344), play a critical role in various industrial applications, particularly where tools are subjected to high temperatures and harsh conditions. These steels are specifically engineered to withstand the intense thermal cycles, mechanical stresses, and abrasive wear that are typical in hot working processes, such as forging, casting, and extrusion.

Metal forgings are a special material suitable for important fields such as aviation and aerospace, so the internal structure and performance requirements are higher than other conventional products. This article focuses on the current use of two processing methods, extrusion and forging, and analyzes and studies the microstructure and properties of hot worked metal forgings using forging, extrusion, and a combination of extrusion and forging production processes for metal forging experiments.

GH4169 nickel based high-temperature alloy has good performance in high temperature resistance, corrosion resistance, fatigue resistance, etc. Its characteristic is that its working temperature can reach 850 ℃, and it can withstand high temperatures of 1100 ℃ in a very short time.

Due to prolonged friction and rolling contact between the work roll and the support roll, the support roll bears significant shear and contact stresses, resulting in deformation strengthening and wear. Therefore, its main failure modes are peeling and wear. The tonnage of forged steel support rollers is large, the production process is complex, and waste products are easily generated.

The manufacturing methods of support rollers mainly include forging and casting. The hot working process of forged steel support rollers mainly includes smelting, casting, forging, and heat treatment, so that the working layer of the produced support roller body can achieve high wear resistance, high and uniform hardness, and excellent accident resistance. At the same time, it ensures that the core and neck of the roller have high toughness and strength, to ensure the dimensional accuracy and good surface quality of cold-rolled strip or steel plate.

Adding vanadium as an alloying element to 5CrNiMo die steel can refine its grain structure, improving its wear resistance and thermal fatigue performance. Forging can further refine the grain structure of the new vanadium-containing hot work die steel 5CrNiMoV sample, further enhancing the wear resistance and thermal fatigue performance of 5CrNiMoV die steel.