Manufacturing 1- (CLO-2) Mark the false statement.In rolling, the metal emerges (leaves) from the rolls at a higher speed than it enters.In hot rolling, a product can be obtained with isotropic propertiesa)b)Rolling is always performed as hot working process.Hot rolling process requires lower forces and power.e)In hot rolling, original coarse grains are turned to new fine (smaller) grains as a result of recrystallization. 2- (CLO-2) What is tearing defect which occurs in deep drawing?a)Ridges in the flangeb)Ridges in the wall50019c)Formation of irregularityd)Open crack in the vertical walle)Formation of many small gas cavities

As per the company's guidelines when multiple questions are asked only first question has to be…

1- (CLO-2) Mark the false statement. In rolling, the metal emerges (leaves) from the rolls at a higher speed than it enters. In hot rolling, a product can be obtained with isotropic properties a) b) Rolling is always performed as hot working process. Hot rolling process requires lower forces and power. In hot rolling, original coarse grains are turned to new fine (smaller) grains as a result of recrystallization.

1- (CLO-2) Mark the false statement. In rolling, the metal emerges (leaves) from the rolls at a higher speed than it enters. In hot rolling, a product can be obtained with isotropic properties a) b) Rolling is always performed as hot working process. Hot rolling process requires lower forces and power. In hot rolling, original coarse grains are turned to new fine (smaller) grains as a result of recrystallization.

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

See similar textbooks

Similar questions

3G Z 4.5G+ l. Which of the following stress or .10 strength parameters is used in the computation of the force in an extrusion (operation (one best answer a) average flow stress O ,b) compression strength) O ,c) final flow stress) O d) tensile strength) O ?e) yield strength O
answer fast with summarized solution
ESSE metal forming condition. 5) One of the common methods to reduce spring back in bending process is by- 4) Residual stresses (internal stresses) is found in
Which of the following stress or .10 strength parameters is used in the computation of the force in an extrusion (operation (one best answer a) average flow stress O ,b) compression strength) O ,c) final flow stress) O d) tensile strength) O ?e) yield strength O
Name, draw a neat sketch and explain why each of the following designs of rolling mill are used instead of a basic two high rolling mill. i) ii) A mill consisting of four roller A mill consisting of six or more rollers
1) The stresses and strains in metal forming are of which type? Elastic_plastic_ultimatefracture_none of these 2) The applied stresses in most bulk deformation processes are- Shear_tensile_compressive_bending_none of these 3) What is the difference between the physical shape of bulk deformation and sheet metalworking manufacturing processes?. In bulk deformation, the work parts have a. area-to-volume ratio, whereas in sheet metalworking, the area-to-volume ratio is Low, high_high,low_high,high,low,low 4) is a bulk deformation process in which a workpiece is compressed between two opposing dies, so that the die shapes are imparted to the work. Rolling_forging_drawing_extrusions_none of these 5) is a compression bulk deformation process in which the work material is forced to flow through a die orifice, thereby forcing its cross section to assume the profile of the orifice Forging.extrusion_drawing.extendingrollingnone of these 6) is a bulk deformation process in which the diameter of a…
1. “The grain size of metal sheet influences its formability in two opposing ways. The yield strength of a metal increases as the grain size decreases. So, the formability of a component may decrease if the grain size gets too small. Larger grained metals have better formability, but the roughened surface that results from stretching metal with grain sizes that are too large is unacceptable for many applications. During a recrystallization anneal new grains form in the metal. The final grain size depends on the annealing temperature and annealing time.” As shown in the figure below (1"x1" area under a 50Xmagnification microscope), a cold-rolled metal has been annealed at 550 degrees C for one hour. Calculate the ASTM Grain Size Number for the following condition: image attached
I need the answer as soon as possible
q1)Work-parts that have low area to- volume ratio are called. Select one: a. Bulk b. Billets c. Sheet metals d. Foils e. Plates q2)A 42.0-mm-thick plate made of low carbon steel is to be reduced to 34.0 mm in one pass in a rolling operation. As the thickness is reduced, the plate widens by 4%. The yield strength of the steel plate is 174 MPa and the tensile strength is 290 MPa. The entrance speed of the plate is 15.0 m/min. The roll radius is 325 mm and the rotational speed is 49.0 rev/min. Determine (a) the minimum required coefficient of friction that would make this rolling operation possible?
0.075L T 0.8 4.0 -7.0 + All dimensions in inches -2.0- 0.1 T 0.205 0.25 T 0.25 5) Rolling: A rolling operation is performed on a 5 mm thick sheet of low carbon steel (K=530, n=0.26 from Table 8.1). The sheet is reduced by 0.2 mm each pass. The friction at the dies is 0.3. The roller diameters are 50 mm. The sheet width is 125 mm. a) Find the roll force for the 3rd pass. For the 3rd pass the initial thickness is 4.6 mm and the final thickness is 4.4 mm. a) Estimate the power to perform the 3rd pass if the roll rotates at 100 rpm.
forming proceɛɛ. 17) Tension is the only type of stress applied in 18) rolling mill type are associated with relatively small diameter rolls in contact with the work piece. 19) Straining a sheet of metal around a straight axis is called 20) The extra portion which must be separated from the extrudate by cutting it just beyond the die exit is called 21) In sheet metal forming the area to volume ratio is considered to be mm. 22) In rolling, if the maximum dratt is 12 mm, & the coefficient of friction is 0.2, thus the minimum roll diameter is 23) The starting work piece in steel hot rolling of plate and sheet stock is called a 24) are 3 methods that can be used to control the metal flow under the blank holder in deep drawing process.
Kindly answer by giving proper explanation .. remember this for upvote