Pearson eText for Manufacturing Processes for Engineering Materials -- Instant Access (Pearson+)
6th Edition
ISBN: 9780137503520
Author: Serope Kalpakjian, Steven Schmid
Publisher: PEARSON+
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Chapter 2, Problem 2.19Q
To determine
The hardness test and scale for thin strip aluminum foil and explain the reasoning.
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A copper specimen subjected to the Brinell Hardness Test using hardened steel ball indenter of diameter 12 mm and the indentation diameter 3.87 mm is measured using an optical magnifying lens with a ruler. Draw the Brinell Hardness Test setup neatly and determine the force applied on the specimen. Take Brinell Hardness Number for copper as 807.
Calculate:
1-Surface Area of Indentation (in mm2)
2-Applied Force (in N)
Why hardness test needs to perform in engineering practice?
When making hardness measurements, whether by nanoindentation or by conventional indentation testing, what will be the effect of making an indent very close to a preexisting indent? Why?
Chapter 2 Solutions
Pearson eText for Manufacturing Processes for Engineering Materials -- Instant Access (Pearson+)
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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- Explain the importance of the Rockwell hardness test to obtain an approximation of tensile strengtharrow_forwardSmall and medium industries could not have afforded to buy an expensive universal testing machine to test for the performance of their product under tension loading. Therefore, they have ended buying a cheaper hardness tester for the purpose. Identify the way of how the tensile strength is determined for their product.arrow_forwardHardness is correlated primarily with which of the following material properties? (This question has more than one correct answer) a. Resistance to material removal b. Maximum breaking stress of a material c. Resistance of a material to plastic deformation d. Toughness via crack propagation e. Resistance of a material to elastic deformationarrow_forward
- Define the hardness of a metal and how is the hardness of a material determined by a hardness testing machine?arrow_forward7. Explain the major and minor loads used in the Rockwell hardness test. Which of these loads did we manually apply?arrow_forwardWhat are the importance of hardness test in engineering practice?arrow_forward
- 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.arrow_forwardExplain a hardness test from Vockers, Brinnell or Rockwell. Then analyse the hardness figures of 0.9% Carbon steel and 0.15% Carbon steel and what effect these differences will have on the material properties.arrow_forwardWhat can be determined when looking at material 1 and material 2 when comparing hardness values and wear resistance.arrow_forward
- Compare the three hardness tests and what can we conclude from this comparisonarrow_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_forward4. Does a tensile test influence your choice of metal? Explain 5. Is it possible to choose the metal according to the hardness tests & tensile tests? Explainarrow_forward
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