4) In progressive formingParts are formed at the successive stageswhich are carried out in different die oneach stroke of the processParts are formed at the successive stageswhich are carried out in the same die oneach stroke of the processSheet metal is stretched andsimultaneously bent to achieve shapechangeNone of these

Progressive forming is a metal forming process in which The part is carried from one station to…

Answered: 4) In progressive forming Parts are…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Explain the open and closed mold forging processes with figures. Draw the force-stroke diagram in closed mold forging. Comment on the diagram.
What is the difference between drawing and extrusion?
1. A component is designed to be hot forged in an impression die. The projected area of the product is 5800 mm2. During the forging process flashing is formed so that the area including the flash will be 8900 mm2. The part geometry is considered to be simple and the heated work material yields at 92 MPa. Calculate the maximum force required to perform the operation. 2. What are the advantages and disadvantages to forge a product through the open forging process, rather than to machine it from the same material?
A connecting rod is designed for hot forging in a printing die. The projected area of the part is 6500 mm2. The die design will cause burr formation during forging, so the area, including burr, will be 9000 mm2. The geometry of the part is complex. When heated, the work material flows at 75 MPa and does not tend to strain harden. Determine the maximum force required to execute the operation.
One way to describe forging processes is by the amount of work that can be done in the die. Based on this grouping, what are the three main types?
Suggest the optimum parameter setting or methods to obtain high quality moulded parts.
A mould has downsprue whose length is 20 cm and the cross sectional area at the base of the downsprue is 1 cm² The downsprue feeds a horizontal runner leading into the mould cavity of volumne 1000 cm³ .find the time required to fill the mould cavity.
A upset forging operation is performed in an open die. The initial size of the workpart is: Do = 63 mm, and ho = 100 mm. The part is upset to a diameter = 70 mm. The work metal has a flow curve with strength coefficient = 600 MPa and strain hardening exponent= 0.22. Coefficient of friction at the die-work interface = 0.40. Determine (a) final height of the part, and (b) maximum force in the operation
Why are hot-rolled products generally limited to standardshapes and sizes?
Explain steps of extrusion process in forming process?
Consider the yellow metal mounting clip shown in Figure 3. Your job shop has been contracted to make 1,000 pieces this year, with possibility of making 2,000 more each year in the future. Consider the process options below, which option is the best? a) using investment casting, cast each clip paint each clip b) using a shearing press, pierce the hole, the slots and the 'gap/break' of each clip from a piece of flat sheet metal using a shearing press, blank each clip from the pierced piece of flat sheet metal deburr each clip as necessary using a press brake, make two bends in each clip acid-pickle wash each clip paint each clip c) Using a sand mold, casting each clip clean each clip paint each clip d) using injection molding, mold each clip paint each clip
A piece with a height of 120 mm and a diameter of 75 mm can be increased to 80 mm in height by pile-forging.is reduced. The coefficient of friction between the workpiece and the mold is 0.13. Flow curve of the workpiece, 165It is defined by a strength coefficient of MPa and a hardening exponent of 0.24. force during operationCalculate at the moments given below and obtain the force-workpiece height graph(1) as soon as it reaches the yield point (yield strain = 0.002),(2) height h = 115 mm,(3) height h = 110 mm,(4) height h = 105mm,(5) height h = 100mm,(6) height h=95mm,(7) height h = 90 mm,(8) height h = 85mm,(9) height h = 80 mm,

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