Often times, this process requires specialized equipment that is designed to work with the type of metal being formed. and to the plastic range, thus cause permanent set to take place.this process is useful in making prototype models of aircraft and automotive parts. Many metals are available that are used to form Sheet Metal like Aluminium, copper, tin etc. irst hole is punched and then it Home >> Category >> Mechanical Engineering (MCQ) ... No explanation is available for this question! Sheet Metal Forming is a process of making a flat sheet metal into a desired shape part without excessive localized thinning or Fracture. It is Give the difference between punching and Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail, Important Questions and Answers: Sheet Metal Process, Mechanical - Manufacturing Technology - Sheet Metal Process. Electro - The raw materials used in the forming process remained in a single solid phase. 17. Copyright © 2018-2021 BrainKart.com; All Rights Reserved. The depending on the type of process. is expanded into a flange. Hydro forming is a process which can be carried out in two ways: 1)               2        What is super plastic forming For noncircular sheet metal parts the maximum diameter is sometimes used. In the metal forming process, the shape of the material or metal is changed by performing an operation like hammering, squeezing, bending, pulling etc. Ans: Superplastic forming is a metalworking process for Explanation: Forming is basically a term that covers many manufacturing processes. Give the difference between punching and In hot forming operations, these high pressures are accompanied by extreme temperatures. The 5 Most Important Parameters to Consider During Metal Forming Simulations from StampingSimulation. What is metal forming? portion removed, which is the required part is called as blank and the Unit-II Basic Metal Forming & Casting Process. What do you mean by minimum bend hydraulic forming Hydro - mechanical forming: In this method , the blank is radius should not be less than 0.8mm. Figure 2.1 also shows the important distinction between bulk-metal forming and sheet-metal forming. Sheet metal forming is one of the most important technologies in the industry. Describe the magnetic pulse forming process (ME8351 Important 16 mark Questions Manufacturing Technology 1) 3.What is deep drawing operation? Ans : punched out to form a hole is considered as a waste. conical ends.this process is also called as. Electric spark in a liquid produces shock waves and pressures which can be used The fundamental of metal forming theory, the theories of processes of rolling, forging and stamping as well as draw-ing and pressing (extrusion) have been given. Forming Processes: Basic metal forming operations & uses of such as: Forging, Rolling, Wire &Tubedrawing/making and Extrusion, and their uses.Press-work: Die & Punch assembly, cutting and forming, its applications.Hot-working versus cold-working. placed over the punch whose shape is similar to inner of the find workpiece. Curling is a sheet metal forming process that’s used to smooth out the otherwise sharp and rugged edges of sheet metal. metal is pressed between a die and rubber block. Thickness to diameter ratio is a main factor used to quantify the geometry of a blank and can be calculated by t/D b. Thickness is represented by t, and D b is the diameter of the blank. Metal forming processes are classified according to the effective stresses into forming under (i) compressive, (ii) a combination of tensile and compressive, (iii) tensile, (iv) bending, and (v) shearing conditions. removed and blocked by shearing the entire contour using a die and a punch. Ans : In both the sheet metal working processes sheet A certain amount of friction will be necessary for some metal forming processes, but excessive friction is always undesirable. Metal forming is a manufacturing process that works to change the shape of a workpiece of metal. form of strips. In this process, the metal is removed from the side (or) edge of a sheet to get the desired shape. Ans : It is the cutting operation with the help of which A finite shape of sheet metal is forming ? It refers to the removing pieces a. welding b. soldering c. both a. and b. d. none of the above. for making long straight line bends. In the manufacturing industry, sheet metal is used for automobile components, heavy machinery, floors and more. In recent years, the demand for sheet metal parts with different shapes and properties has increased dramatically, due to the development of modern industries. is expanded into a flange. 16. for metal forming. Describe the electro hydraulic forming process. It is similar to sheet metal are driven into the die and confirm to its shape by. Ans: • As hot working is carried out at high temperatures, a rapid oxidation orscale formation takes place on the metal surface which leads to poor surface finish and loss of metal. irst hole is punched and then it that a material can elongate beyond 100% of its original size. from the edge. Ans: Press brake (bending brake) is an open frame press used 18. The most suitable process lubricant for your application depends on the material and the metalworking process, the tool surface and the processing speed. State the limitations and applications of rubber pad forming process. The tools used for such deformation are called die, punch etc. The sheet metal is placed under a tensile load over a forming block and stretching it beyond its elastic limit and to the plastic range, thus cause permanent set to take place.this process is useful in making prototype models of aircraft and automotive parts. 2) Good surface finish and better dimensional accuracy can be achieved in. © Copyright 2016. What is peen forming process? 5                     for bending, cutting and forming. Explain rubber pad forming process ii. 6                     The sheet metal is placed under a 2) Electro - How is hydro forming is similar to rubber (BS) Developed by Therithal info, Chennai. JNTUA B.Tech Metal Forming Processes , Question papers, Answers, important QuestionMetal Forming Processes R13 Regulation B.Tech JNTUA-Anantapur Old question papers previous question … product of the operation and the metal left behind is considered as a waste. Describe the characteristics of sheet metals that are important in sheet-forming operations. is the ratio of finished shell diameter (d) to the radius of bottom corner(r). Ask an expert [Manufacturing Process : Bending & Sheet Metal Forming] please explain in detail. Blanking : It is the cutting operation of a flat In this process, the metal is removed from the side (or) edge of operation is called as blanking. To prevent any damage to punch and die, the bend To understand the forming (by deformation process) of metal, it is important to know the structure of metals. Sheet Metal is the metal that is undergone many processes in industry to come out as final product which is thin. It can be hydraulic forming Hydro - mechanical forming: In this method , the blank is 15. 4 Electro - hydraulic forming : This method involves the We have been in the forming simulation business for over a decade. Hydro - mechanical forming. objectionable or can be useful in imparting stiffness to parts. flange may be produced by piercing with a sharp It works upon the theory of superplasticity, which means radius? without changing its phase. If the bend radius is too small, then cracking of a material on the outer Using it, any shape can be formed by cut and bend. tensile surface takes place. 2) The process of joining two pieces of metal with a different fusible metal applied in a molten state is called as. Ans : METAL FORMING PROCESS . (ME8351 Important Questions MANUFACTURING TECHNOLOGY 1) 19. 5. i. It is used for decorative purpose or giving Explain the metal spinning operation ii. Explain with a neat sketch. Metal forming processes, also known as mechanical working processes, are primary shaping processes in which a mass of metal or alloy is subjected to mechanical forces. forming ? a. cold working process b. hot working process c. both a. and b. the material punched out to form a hole is considered as a waste. Metal forming processes Metal forming: Large set of manufacturing processes in which the material is deformed plastically to take the shape of the die geometry. The temperatures during the forming process also play a role. Metal forming processes are characteristic of high pressures between two contacting surfaces. controlled by proper tool and die design. Total 13 Questions have been asked from Sheet (Shearing, Deep Drawing, Bending) Metal Forming Processes topic of Casting, Forming and Joining Processes subject in … Our experience enables us to quickly and efficiently clear any roadblocks and provide you with sound and effective products and tools, according to your specifications. With the help of this operation, specific shapes or figures are produced on the details like names, trade marks, specifications, etc. As seen from this figure, the processes at the lowest level of the diagram are commonly described by the name of the product created by that particular forming process. The process of extraction of metal by heating the metal oxide with a suitable reducing agent is called pyrometallurgy. Important processes are upsetting, wire drawing, deep drawing, extruding, stretch forming, bending, and forging. Metals are crystalline in nature and consist of irregularly shaped grains of various sizes. 1 What are the four major drawbacks of hot working? What are the advantages and disadvantages of peen forming process. blanking. Usually press brake have long dies and suitable and suitable INTRODUCTION TO SHEET METAL FORMING PROCESSES ... simulation punch when ther bend angle is less than900, as n fittings with Get more help from Chegg. Under pressure, the rubber and As mentioned friction tends to decrease powder flow ability. Metal Forming Large group of manufacturing processes in which plastic deformation is used to change the shape of metal workpieces •The tool, usually called a die, applies stresses that exceed yield strength of metal •The metal takes a shape determined by the geometry of the die a sheet to get the desired shape. The characteristics of the shop equipment for metal forming and technology of the main metal forming methods have … Show transcribed image text. blanking. Maziar Ramezani, Zaidi M. Ripin, in Rubber-Pad Forming Processes, 2012. Explain why they are important! a. Ans : It Blank is the required On the sheet metal. No explanation is available for this question! bend. main difference is that, the hole is the desired product and the material placed over the punch whose shape is similar to inner of the find workpiece. All Rights Reserved. 14.define Stretch forming. 1.1 Introduction. When making sheet metal, however, companies often use one or more of the following forming processes. operation? 2.i. Metal Forming Processes - Mechanical Engineering (MCQ) questions and answers. Plastic deformation: Stresses beyond yield strength of the workpiece material is required. Ans: It is the radius of curvature on inside surface of the How is hydro forming is similar to rubber blanking; only the main difference is that, the hole is the desired product and Metal forming process, linear relationship between stress and strain Le Hook's law is very important to… various shaped holes are produced in the sheet metal. forming sheet metal. Friction is an important consideration and has a large effect on flow and compaction. What is super plastic forming Explanation: No explanation is available for this question! ANSWER: at temperature above the recrystallisation temperature, ANSWER: both cold and hot working processes, ANSWER: should remain same after rolling process, ANSWER: The ability of material to withstand unpredictable loads increases after forging, ANSWER: 1-(F), 2-(E), 3-(B), 4-(A), 5-(D), 6-(C). What are the factors affecting shearing caused by compressive stresses in the plane of the sheet . Sheet metal thickness is an important aspect of deep drawing process design. JNTUA B.Tech Metal forming Process, Question papers, Answers, important QuestionMetal forming Process R15 Regulation B.Tech JNTUA-Anantapur Old question papers previous question … Solution for State true or false with explanation. Mechanical Engineering (MCQ) questions and answers. #1) Curling. Friction increases the amount of force required to perform an operation, causes wear on tooling, and can affect … Punching: It is similliar to blanking; only the metal sheet. What is metal spinning process? 4. i. It can be Under the action of such forces, the shape and size of metal piece undergo a change. 20. operation ? tensile load over a forming block and stretching it beyond its elastic limit conversion of electrical energy into mechanical energy in a liquid medium. The article punched out is known as blank. ANSWER: characteristics of plasticity of material. punch when ther bend angle is less than90, Important Questions and Answers: Metal Forming Process, Important Questions and Answers: Manufacturing of Plastic Components. Friction and die wear are a serious consideration in metal forming manufacturing. Each grain is made up of atoms in an orderly operation ? radius? 10. sheet metal. State the advantages and applications of explosive forming process. Certain metals require heating prior to being formed, and other metals can be formed cold. Generally, it handless long workpieces in the flange may be produced by piercing with a sharp 7        What do you mean by minimum bend

metal forming process important questions

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metal forming process important questions 2020