EBK MANUFACTURING PROCESSES FOR ENGINEE
6th Edition
ISBN: 9780134425115
Author: Schmid
Publisher: YUZU
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Question
Chapter 2, Problem 2.100P
To determine
The depth of penetration in a Brinell hardness test.
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A mild steel material is subjected to a Brinell
hardness test with an applied force of 7459
N using a hardened steel ball indentor of 11
mm and it is found that the Brinell Hardness
Number as 954. Determine the surface area
of indentation and indentation diameter.
(NOTE: Please Solve the problem in a
paper and upload in the separate
submission link provided and also fill
the answers without the unit in the box
below)
i) Surface Area of Indentation (in mm?)
-- (
ii) Indentation Diameter (in mm)
Tutorial Problem 3
The following data are obtained from the Charpy impact test of a copper specimen.
a) Length of the square cross-section specimen = 70 mm
b) Each side (top & bottom) of the cross-section = 9.64 mm
c) V – Notch thickness at middle of the specimen length = 1.06 mm
d) Impact Strength = 279 kJ/m²
Determine the Cross-sectional area at the top surface, Cross-sectional area at notch & Impact energy of the
copper specimen.
Problems
1. A Rockwell hardness measurement is made on a ductile iron (80-55-06 as cast) and the
obtained Rockwell hardness R scale is 13 HRC. Predict the tensile and yield strengths of this
material.
2. A Brinell hardness measurement is made on a ductile iron (120-90-02, Oil-quenched) using a
10-mm-diameter sphere of tungsten carbide. A load of 3,000 kg produces a 3.52-mm-
diameter impression in the iron surface.
a. Calculate the BHN of this alloy. (The correct units for the Brinell equation are
kilograms for load and millimeters for diameters.)
b. Predict the tensile and yield strengths
3. Suppose that a ductile iron (100-70-03, air-quenched) has a tensile strength of 800 MPa.
What diameter impression would you expect the 3,000-kg load to produce with the 10-mm-
diameter ball?
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Chapter 2 Solutions
EBK MANUFACTURING PROCESSES FOR ENGINEE
Ch. 2 - Prob. 2.1QCh. 2 - Prob. 2.2QCh. 2 - Prob. 2.3QCh. 2 - Prob. 2.4QCh. 2 - Prob. 2.5QCh. 2 - Prob. 2.6QCh. 2 - Prob. 2.7QCh. 2 - Prob. 2.8QCh. 2 - Prob. 2.9QCh. 2 - Prob. 2.10Q
Ch. 2 - Prob. 2.11QCh. 2 - Prob. 2.12QCh. 2 - Prob. 2.13QCh. 2 - Prob. 2.14QCh. 2 - Prob. 2.15QCh. 2 - Prob. 2.16QCh. 2 - Prob. 2.17QCh. 2 - Prob. 2.18QCh. 2 - Prob. 2.19QCh. 2 - Prob. 2.20QCh. 2 - Prob. 2.21QCh. 2 - Prob. 2.22QCh. 2 - Prob. 2.23QCh. 2 - Prob. 2.24QCh. 2 - Prob. 2.25QCh. 2 - Prob. 2.26QCh. 2 - Prob. 2.27QCh. 2 - Prob. 2.28QCh. 2 - Prob. 2.29QCh. 2 - Prob. 2.30QCh. 2 - Prob. 2.31QCh. 2 - Prob. 2.32QCh. 2 - Prob. 2.33QCh. 2 - Prob. 2.34QCh. 2 - Prob. 2.35QCh. 2 - Prob. 2.36QCh. 2 - Prob. 2.37QCh. 2 - Prob. 2.38QCh. 2 - Prob. 2.39QCh. 2 - Prob. 2.40QCh. 2 - Prob. 2.41QCh. 2 - Prob. 2.42QCh. 2 - Prob. 2.43QCh. 2 - Prob. 2.44QCh. 2 - Prob. 2.45QCh. 2 - Prob. 2.46QCh. 2 - Prob. 2.47QCh. 2 - Prob. 2.48QCh. 2 - Prob. 2.49PCh. 2 - Prob. 2.50PCh. 2 - Prob. 2.51PCh. 2 - Prob. 2.52PCh. 2 - Prob. 2.53PCh. 2 - Prob. 2.54PCh. 2 - Prob. 2.55PCh. 2 - Prob. 2.56PCh. 2 - Prob. 2.57PCh. 2 - Prob. 2.58PCh. 2 - Prob. 2.59PCh. 2 - Prob. 2.60PCh. 2 - Prob. 2.61PCh. 2 - Prob. 2.62PCh. 2 - Prob. 2.63PCh. 2 - Prob. 2.64PCh. 2 - Prob. 2.65PCh. 2 - Prob. 2.66PCh. 2 - Prob. 2.67PCh. 2 - Prob. 2.68PCh. 2 - Prob. 2.69PCh. 2 - Prob. 2.70PCh. 2 - Prob. 2.71PCh. 2 - Prob. 2.72PCh. 2 - Prob. 2.73PCh. 2 - Prob. 2.74PCh. 2 - Prob. 2.75PCh. 2 - Prob. 2.76PCh. 2 - Prob. 2.78PCh. 2 - Prob. 2.79PCh. 2 - Prob. 2.80PCh. 2 - Prob. 2.81PCh. 2 - Prob. 2.82PCh. 2 - Prob. 2.83PCh. 2 - Prob. 2.84PCh. 2 - Prob. 2.85PCh. 2 - Prob. 2.86PCh. 2 - Prob. 2.87PCh. 2 - Prob. 2.88PCh. 2 - Prob. 2.89PCh. 2 - Prob. 2.90PCh. 2 - Prob. 2.91PCh. 2 - Prob. 2.92PCh. 2 - Prob. 2.93PCh. 2 - Prob. 2.94PCh. 2 - Prob. 2.95PCh. 2 - Prob. 2.96PCh. 2 - Prob. 2.97PCh. 2 - Prob. 2.98PCh. 2 - Prob. 2.99PCh. 2 - Prob. 2.100PCh. 2 - Prob. 2.101P
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- 1- With the Vickers hardness test a 10 kg load gave for a sample of brass an indentation with diagonals having mean lengths of 0.510 mm. What is the hardness? Again, what is tensile strength of brass? 2- When a load is applied to a brass specimen in a Brinell test, an indentation of 4.10 mm is Ahimary produced. Estimate the tensile strength of the brass.arrow_forwardDetermine Brinell Hardness Number for a specimen that has a surface area of indentation as 19 mm2 and the applied force as 12 kN.arrow_forwardA 2.0-inch diameter 4140 steel bar is austenized and tempered in oil without Agitation, determine the resulting hardness at 0.6 inches below the surface, present all the Procedure to arrive at the answer (include sketch of the piece and graph used with steps Using word forms)arrow_forward
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