Classification of Metal Removal Processes and Machine tools, Introduction to Manufacturing and Machining, PDF, kb. Classification of Metal Removal. (iii) List the main classifications of the manufacturing processes with examples. ( iv) State the main purposes of “machining”. (v) Define with examples the concept . NPTEL provides E-learning through online Web and Video courses various streams.

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Lecture 1. FUNDAMENTALS OF METAL FORMING. There are four basic production processes for producing desired shape of a product. These are casting. Powder metallurgy is the process of blending fine powdered materials, compacting the The manufacturing of the material powder is the first step in powder. Metal Casting. Introduction. Virtually nothing moves, turns, rolls, or flies without the benefit of cast metal products. The metal casting industry plays a key role in.

Kinematic system and operations of drilling machines.

Kinematic system and operations of milling machines. Construction, working principle and applications of shaping, planing and slotting machines.

Methods of mounting of jobs and cutting tools in machine tools. Use of various Attachments in Machine Tools. Construction, Operation and Tool layout in Semiautomatic and Automatic lathes. Forces developing and acting in machine tools.

Module_7_Sheet_Metal-Forming_Lecture_1.pdf - NPTEL...

Principles, Systems and Applications. Basic principle, purpose and application of grinding. Selection of wheels and their conditioning.

Classification of grinding machines and their uses. Superfinishing processes, Honing, Lapping and Superfinishing. Production of screw threads by Machining, Rolling and Grinding.

Purposes of jigs and fixtures and their Design principles. Design and Application of typical jigs and fixtures.


Introduction and Abrasive Jet Machining. Electron Beam and Laser Beam Machining.

Contact Webmaster: Hydraulic or mechanical presses called stamping presses are used for the forming process. Die — punch combination is used for the process to impart the desired shape to the blank.

Dies may be simple or compound, which include several operations. Transfer dies can be used in heavy operations.

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The prominent type of force in sheet forming is tensile. In some operations shear is also used. However, reduction in sheet thickness is avoided in sheet forming, due to localized deformation called necking.

Yielding, elongation, anisotropy, and wrinkling are important parameters in sheet forming. Material grain size also influences the characteristics of the formed product.


During tensile elongation of ductile material, beyond the ultimate tensile strength, localized necking begins. At the ultimate point where necking or instability is about to begin, we know that the strain is equal to the strain hardening exponent. Higher the strain hardening exponent for a metal, higher the stress it can withstand before necking.

In isotropic materials, necking is usually found to occur at an angle of 55 degrees with reference to the tensile axis.Classification of grinding machines and their uses. Just click the green Download button above to start. Continue to app Rating: Introduction to Manufacturing and Machining.

Machining forces and Merchant? Selection of wheels and their conditioning. Classification of grinding machines and their uses. Purposes of jigs and fixtures and their Design principles.

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