1.4. Product Advantages of Forging

Forging offers the designer several basic performance advantages to a degree that sets it above alternate processes.

Directional Strength Forging refines the grain structure and develops the optimum grain flow, which imparts desirable directional properties such as tensile strength, ductility, impact toughness, fracture toughness and fatigue strength. Figure 1-8 illustrates the grain flow of forging compared with machining from bar or plate and casting for the dragline chain link shown in Figure 1-9.

Structural Integrity Forgings are free from internal voids and porosity. The process achieves very consistent material uniformity, which results in uniform mechanical properties and a uniform, predictable response to heat treatment.

Figure 1-5 The ring rolling process

Dynamic Properties Through proper deformation and grain flow, combined with high material uniformity, the forging process maximizes impact toughness, fracture toughness and fatigue strength. These properties are particularly advantageous in safety related applications, such as aerospace structural components and automotive components, typically suspension, brake and steering systems, which are subject to shock, impact and cyclic loads.

Figure 1-6 Several of the many cross sectioFigure 1-6 Several of the many cross sections that are made by ring rolling

Optimum Material Utilization The features of a forging can be made with varying cross sections and thicknesses to provide the optimum amount of material for the anticipated load. This capability, plus the high mechanical properties of forgings, often allows designers to minimize component part weight, especially when compared with castings and assemblies of sheet metal stampings.

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Forging offers the designer several basic performance advantages to a degree that sets it above alternate processes.

Directional Strength Forging refines the grain structure and develops the optimum grain flow, which imparts desirable directional properties such as tensile strength, ductility, impact toughness, fracture toughness and fatigue strength. Figure 1-8 illustrates the grain flow of forging compared with machining from bar or plate and casting for the dragline chain link shown in Figure 1-9.

Structural Integrity Forgings are free from internal voids and porosity. The process achieves very consistent material uniformity, which results in uniform mechanical properties and a uniform, predictable response to heat treatment.

Figure 1-5 The ring rolling process

Dynamic Properties Through proper deformation and grain flow, combined with high material uniformity, the forging process maximizes impact toughness, fracture toughness and fatigue strength. These properties are particularly advantageous in safety related applications, such as aerospace structural components and automotive components, typically suspension, brake and steering systems, which are subject to shock, impact and cyclic loads.

Figure 1-6 Several of the many cross sectioFigure 1-6 Several of the many cross sections that are made by ring rolling

Optimum Material Utilization The features of a forging can be made with varying cross sections and thicknesses to provide the optimum amount of material for the anticipated load. This capability, plus the high mechanical properties of forgings, often allows designers to minimize component part weight, especially when compared with castings and assemblies of sheet metal stampings.

Return to Table of Contents

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Forging offers the designer several basic performance advantages to a degree that sets it above alternate processes.

Directional Strength Forging refines the grain structure and develops the optimum grain flow, which imparts desirable directional properties such as tensile strength, ductility, impact toughness, fracture toughness and fatigue strength. Figure 1-8 illustrates the grain flow of forging compared with machining from bar or plate and casting for the dragline chain link shown in Figure 1-9.

Structural Integrity Forgings are free from internal voids and porosity. The process achieves very consistent material uniformity, which results in uniform mechanical properties and a uniform, predictable response to heat treatment.

Figure 1-5 The ring rolling process

Dynamic Properties Through proper deformation and grain flow, combined with high material uniformity, the forging process maximizes impact toughness, fracture toughness and fatigue strength. These properties are particularly advantageous in safety related applications, such as aerospace structural components and automotive components, typically suspension, brake and steering systems, which are subject to shock, impact and cyclic loads.

Figure 1-6 Several of the many cross sectioFigure 1-6 Several of the many cross sections that are made by ring rolling

Optimum Material Utilization The features of a forging can be made with varying cross sections and thicknesses to provide the optimum amount of material for the anticipated load. This capability, plus the high mechanical properties of forgings, often allows designers to minimize component part weight, especially when compared with castings and assemblies of sheet metal stampings.

Return to Table of Contents

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