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Branch – AUTO

Semester - 3rd (WINTER:2021)

Subject – Production Technology

Chapter - 01

Topic-Metal Forming Process

Faculty- Er Monesh Kumar Sahu

METAL FORMING PROCESS

• Forming, metal forming, is the metalworking process of fashioning metal parts and objects through mechanical deformation; the workpiece is reshaped without adding or removing material, and its mass remains unchanged.
• Forming operates on the materials science principle of plastic deformation, where the physical shape of a material is permanently deformed.

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PRIMARY METAL FORMING PROCESSES

• Extrusion.
• Rolling.
• Forging.
• Drawing. �

EXTRUSION

• Extrusion is a process used to create objects of a fixed cross-sectional profile by pushing material through a die of the desired cross-section.
• Its two main advantages over other manufacturing processes are its ability to create very complex cross-sections; and to work materials that are brittle, because the material encounters only compressive and shear stresses.
• It also creates excellent surface finish and gives considerable freedom of form in the design process.

CLASSIFICATION OF EXTRUSION PROCESS

DIRECT EXTRUSION

INDIRECT EXTRUSION

IMPACT EXTRUSION

ROLLING

TYPES OF ROLLING

HOT ROLLING

COLD ROLLING

ROLLING MILL CONFIGURATION