Answered: In the drawing operation, mechanical…

Engineering

Mechanical Engineering

In the drawing operation, mechanical property ductility is an important parameter. Select one: True False

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter1: Introduction To Machining

Section1.2: Careers In Machining

Problem 1RQ: What is an engineering drawing and what is its purpose?

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Concept explainers

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.

Question

21) In the drawing operation, mechanical property ductility is an important parameter.

Select one:

True

False

Branch of science that deals with the stationary and moving bodies under the influence of forces.

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3) A direct extrusion process is used to reduce a cylindrical part that has a diameter of 5 inch and is 10 inch long to a cylinder with 2 inch diameter. The die angle is 90°. The cylinder material has a strength coefficient of 10 ksi and strain hardening exponent Of 0.15. Determine a. Extrusion strain b. Ram force
4) In the deep drawing of cups, blanks show a tendency to wrinkle up around the periphery (flange). The most likely cause and remedy of the phenomenon are respectively: Buckling due to circumferential compression; Increase blank holder pressure. High blank holder pressure and high friction; Reduce blank holder pressure and apply lubricant. High temperature causing an increase in circumferential length; Apply coolant to blank. Buckling due to circumferential compression; decrease blank holder pressure.
QUESTION 3 Extrusion and drawing have numerous application in manufacturing continuous as well as discrete products from a wide variety of metals and alloys. There are three types of extrusion. Please describe and draw the schematic illustration to represent each of them. Question 4 Selection of die in forging process is very important in order to control the quality of the product. List four general requirements for die material.
What is an engineering drawing and what is its purpose?
Differentiate ISOMETRIC DRAWING to OBLIQUE DRAWING.
In drawing Process, consider the streng th coefficient = 546-4 and Do=3.5mm %3D dF= 3.1mm, angle= 8,n=o15i l =ove 8 %3D de ter mine the required drawing forces in MP e
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7) Which of the following types of stresses are induced in the stretch forming process? Tensile only. OCompressive only. A combination of tensile and compressive stresses. A combination of tensile, compressive and shear stresses
In a wire drawing operation diameter of a steel wire is reduced from 10 mm to 8 mm. The mean flow stress of the material is 400 MPa.what is the ideal force required for drawing (ignoring friction and redundant work).?
Question 3. 120 mm diameter and 600 mm long copper material will be produced by direct extrusion process as follows. Strength coefficient for copper is 300 MPa and plyumization base The pattern angle constants are 0.5. Accordingly, it is not the case. a) The rate of extrusion, b) The shape factor, c) While the remaining material in the cylinder is 500 mm, the force required to ensure the forward movement of the ram during extrusion, d) At the end of the process, if the volume of the last part of the cylinder is 0.4 dm3 find the length of the extruded part. 2,7 mm 55 mm
What is the main difference between extrusion process and drawing process?
3XPL@!N THE PROCESS @ND PROVIDE EXAMPLES FORMING OPERATIONS 1. Forging is mechanically working or deforming a single piece of a usually hot metal; this may be accomplished by the application of successive blows or by continuous squeezing. 2. Rolling, the most widely used deformation process, consists of passing a piece of metal between two rolls; a reduction in thickness results from compressive stresses exerted by the rolls. 3. Extrusion, a bar of metal is forced through a die orifice by a compressive force that is applied to a ram; the extruded piece that emerges has the desired shape and a reduced cross-sectional area. 4. Drawing is the pulling of a metal piece through a die having a tapered bore by means of a tensile force that is applied on the exit side.