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  Subject: Manufacturing Process I Unit 2: Metal Forming Processes Unit 2 Part 3: Forging Process Forging It is a forming process in which the raw material is heated to plastic state & it is deformed between a pair of dies by application of pressure to transform it into desired shape permanently. Note Forging is generally a hot working Process. Pressure applied is forging process by - Hand Hammer & Power Hammer. Types of Forging Depending upon the means of application of pressure forging process can be of two types, as – Hand Forging  Machine Forging Machine forging can further be classified into following two types:  Drop Forging &  Press Forging. Hand Forging It is a forging process in which the raw material is heated in an open fire and shaped gradually by hammering with manual hammer using basic tools, is called hand forging or, black smith forging. The hand forging process is useful for small scale productions. In this process, products of simple sha...

Subject: Manufacturing Process I Unit 2: Metal Forming Processes Unit 2 Part 2: Rolling Process Definition of Rolling It is a forming process in which the raw material is heated to plastic state & it is compressed between two rolls of equal size and the raw material is deformed under the combined action of compression and shear such that the cross-section area is reduced at the expense of increasing length. Note Rolling is generally a Hot Working Process. The raw material used in rolling is called INGOTS which are made by casting process. After rolling the ingots, they become BLOOM . Blooms are bars of square cross section. Blooms are further rolled into BILLETS. Billets are shorter in length. Types of Rolling Depending upon the working temperature, Rolling can be of two types, like Hot & Cold Rolling. Hot Rolling When the working temperature in a particular rolling process is above the recrystallisation temperature of the work metal, then it is called hot rolling. Cold Rollin...

  Subject: Manufacturing Process I Unit 2: Metal Forming Processes Forming Forming is a manufacturing process in which raw material is permanently deformed into desired shape such that the stress induced in the work-piece is more than yield stress but less than ultimate stress.  Examples: Rolling, Forging, Extrusion, Press-working etc. Types of Forming Depending upon the working temperature, forming can be classified in two categories: Hot Working and Cold Working. Hot Working Hot forming is a forming process where the working temperature of the material is kept above its recrystallization temperature.  Examples: hot rolling, hot extrusion, hot forging etc.  Cold Working Cold forming is a forming process performed below the material's recrystallization temperature. Examples: cold rolling, cold extrusion, cold forging, press working etc. ______ Read more ... Unit 2 Part 2: Rolling Process Unit 2 Part 3: Forging Process Unit 2 Part 4: Extrusion Process Unit 2 Part 5: P...

  Subject: Manufacturing Process I Unit 1: Exercises   1. What is manufacturing? A. A process of designing goods B. A process of converting raw materials into finished goods C. A process of transporting goods D. A process of advertising goods Answer: Explanation:   2. Which of the following is an example of a manufacturing process? A. Turning B. Painting C. Packaging D. Assembling Answer: Explanation: 3. Which primary manufacturing process involves pouring molten metal into a mould? A. Machining B. Forging C. Casting D. Joining Answer: Explanation:     4. What is the primary purpose of finishing processes? A. To remove excess material B. To deform materials into desired shapes C. To achieve specific surface characteristics and properties D. To join materials together Answer: Explanation:     5. Which of the following is not classified under metal forming processes? A. Rolling B. Extr...

  Subject: Manufacturing Process I Unit 1: Fundamentals of Manufacturing Processes Manufacturing Manufacturing is the process of converting raw materials, components, or parts into finished goods that meet a customer's expectations or specifications. Manufacturing Process Manufacturing engineering or manufacturing processes are the steps through which raw materials are transformed into a final product. Example: Forming , Casting, Joining Process etc.   Classification of Manufacturing Processes Manufacturing processes are broadly classified into following categories – 1.      Forming processes, 2.      Machining processes, 3.      Casting Process, 4.      Joining processes and 5.      Finishing processes     Forming Processes: Forming is a primary manufacturing process in which raw material is permanently deformed into desired shape suc...