Reparation of the Damaged Forging Hammer Mallet by Hard Facing and Weld Cladding

During the long-term operation, mallets of the forging hammers are exposed to thermal fatigue due to the cyclic temperature changes and impact loads. Taking into account very high price, and a risk of buying frequently the new parts, the necessity of their reparation becomes obvious. The forging hammer mallet (Figure 1), is primarily exposed to the impact compressive loads, and partially also to a temperature gradient. It is happening due to the thermal stresses caused by unbalanced temperature field [1, 2, 3, 4, 5, 6]. Therefore it is clear that this very intensively loaded