Homework Answers
3)answer
Mechanical Properties of the main material in Hot stamping
1.Strength
2.Stiffness
3.Ductility
4. Plasticity
5.Toughness
6. Malleability
7.Brittleness
4) answer
four Factors that influence the size and length of beads in sheet metal forming process
1. Press tonnage/ Blanking force
2.Blank thickness
3.Maximum radial Tensile stress
4.Stamping finite radius
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3. What are the mechanical properties of the main materials used in hot stamping? 4. What...
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what are the physical and chemical properties and mechanical structure of typical synthetic membrane used in mass separation processes?
In a lock-in amplifier, a mechanical chopper is often used. What are the two main purposes...
In a lock-in amplifier, a mechanical chopper is often used. What are the two main purposes of the mechanical chopper? Why is the modulated signal multiplied by the carrier wave in a lock-in amplifier? (be as detailed as possible)
Assignment 01 TOT Mechanical Properties of Materials 1. A tensile test specimen has a gage length...
Assignment 01 TOT Mechanical Properties of Materials 1. A tensile test specimen has a gage length = 50 mm and its cross-sectional area = 100 mm. The specimen yields at 48,000 N, and the corresponding gage length - 50.23 mm. This is the 0.2 ent yield point. The maximum load of 87,000 N is reached at a gage length 64.2 mm. Determine (a) yield strength, (b) modulus of elasticity, and (c) tensile strength. (d) If fracture occurs at a gage...
If the dislocation motions are prevented, what will be expected in terms of mechanical properties. (10...
If the dislocation motions are prevented, what will be expected in terms of mechanical properties. (10 pts.). What is the magnitude of the maximum stress that exists at the tip of an internal crack having a radius of curvature of 3.5 x 10-4 mm and a crack length of 3.6 x 10-2 mm when a tensile stress of 190 MPa is applied? (10 pts.).
answer for each of the following Problem 1 (20 pts): Provide a short but comprehensive forming ences process and mechanical properties (5 pts). b) Solder is a fusible Sn-Pb alloy used to create a...
answer for each of the following Problem 1 (20 pts): Provide a short but comprehensive forming ences process and mechanical properties (5 pts). b) Solder is a fusible Sn-Pb alloy used to create a permanent bond between metal workpieces (eg. to attach an electrical wire to a pin on a printed circulit board). Given the phase diagram of Sn-Pb system, recommend a proper composition for solder with good usability and provide your justification. (5 pts) c) A 10 wt% Sn-90...
QUESTION 5A (a) There are FOUR (4) factors that need to be considered in service condition....
QUESTION 5A (a) There are FOUR (4) factors that need to be considered in service condition. Interpret how all the four factors influence the properties of materials during service condition. (8 marks) (b) (i) Sketch a graph showing the relationship between impact energy and temperature for metal with body centered cubic (BCC) crystal structure. Indicates on the graph the point of ductile to brittle transition temperature. (3 marks) In the history of Titanic and Liberty Ship, the disaster occurred due...
answer question 4 opts Select all characteristics of microstructure that affect Materials properties Grain Size Crystal...
answer question 4
opts Select all characteristics of microstructure that affect Materials properties Grain Size Crystal Structure Crysal Defects None of the above Question 4 6 pts Atle line is a constant temperature line in the phase diagram that connects two single phases adjacent to a two phase region O two regions adjacent to a single phase region A single phase and a two phase region None of the above Question 5 6 pts Select all mechanical properties Wear resistance...
Selection of materials One of the most challenging task of materials engineer is the proper selection...
Selection of materials One of the most challenging task of materials engineer is the proper selection of the material for a particular job, e.g., a particular component of a machine or structure. An engineer must be in a position to choose the optimum combination of properties in a material at the lowest possible cost without compromising the quality. A number of questions need to be answered before a decision can be made as to the specification required of a material...
3. Explain all the basic properties of the model of the normal distribution. 4. In a...
3. Explain all the basic properties of the model of the normal distribution. 4. In a factory, the length of a certain metal bar is normally distributed, and has a mean of 50 cm, and a standard deviation of 0.07 cm. Two bars are selected and the measurements are 50.05cm and 49.99 cm. To calculate the probability that the length falls between 50.05 and 49.99, we need to standardize the normal distribution by calculating the z- scores. What are the...
UIZ ECC209 1.pdf Meet - mkh-mjvb-bkc X ownloads/QUIZ%20ECC209%201.pdf What are the characteristics that distinguish bulk deformation...
UIZ ECC209 1.pdf Meet - mkh-mjvb-bkc X ownloads/QUIZ%20ECC209%201.pdf What are the characteristics that distinguish bulk deformation processes from sheet metal processes? Answer.. 2. Extrusion is a fundamental shaping process. Describe it. Answer.. 3. Why is the term press working often used for sheet metal processes? Answer. 4. Indicate some of the advantages of cold working relative to warm and hot working. Answer. Multiple Choice Quiz 5. Which of the following are bulk deformation processes (more than one)? (a) bending, (b)...
Assignment 01 TOT Mechanical Properties of Materials 1. A tensile test specimen has a gage length = 50 mm and its cross-sectional area = 100 mm. The specimen yields at 48,000 N, and the corresponding gage length - 50.23 mm. This is the 0.2 ent yield point. The maximum load of 87,000 N is reached at a gage length 64.2 mm. Determine (a) yield strength, (b) modulus of elasticity, and (c) tensile strength. (d) If fracture occurs at a gage...
If the dislocation motions are prevented, what will be expected in terms of mechanical properties. (10 pts.). What is the magnitude of the maximum stress that exists at the tip of an internal crack having a radius of curvature of 3.5 x 10-4 mm and a crack length of 3.6 x 10-2 mm when a tensile stress of 190 MPa is applied? (10 pts.).
answer for each of the following Problem 1 (20 pts): Provide a short but comprehensive forming ences process and mechanical properties (5 pts). b) Solder is a fusible Sn-Pb alloy used to create a permanent bond between metal workpieces (eg. to attach an electrical wire to a pin on a printed circulit board). Given the phase diagram of Sn-Pb system, recommend a proper composition for solder with good usability and provide your justification. (5 pts) c) A 10 wt% Sn-90...
QUESTION 5A (a) There are FOUR (4) factors that need to be considered in service condition. Interpret how all the four factors influence the properties of materials during service condition. (8 marks) (b) (i) Sketch a graph showing the relationship between impact energy and temperature for metal with body centered cubic (BCC) crystal structure. Indicates on the graph the point of ductile to brittle transition temperature. (3 marks) In the history of Titanic and Liberty Ship, the disaster occurred due...
answer question 4
opts Select all characteristics of microstructure that affect Materials properties Grain Size Crystal Structure Crysal Defects None of the above Question 4 6 pts Atle line is a constant temperature line in the phase diagram that connects two single phases adjacent to a two phase region O two regions adjacent to a single phase region A single phase and a two phase region None of the above Question 5 6 pts Select all mechanical properties Wear resistance...
Selection of materials One of the most challenging task of materials engineer is the proper selection of the material for a particular job, e.g., a particular component of a machine or structure. An engineer must be in a position to choose the optimum combination of properties in a material at the lowest possible cost without compromising the quality. A number of questions need to be answered before a decision can be made as to the specification required of a material...
3. Explain all the basic properties of the model of the normal distribution. 4. In a factory, the length of a certain metal bar is normally distributed, and has a mean of 50 cm, and a standard deviation of 0.07 cm. Two bars are selected and the measurements are 50.05cm and 49.99 cm. To calculate the probability that the length falls between 50.05 and 49.99, we need to standardize the normal distribution by calculating the z- scores. What are the...
UIZ ECC209 1.pdf Meet - mkh-mjvb-bkc X ownloads/QUIZ%20ECC209%201.pdf What are the characteristics that distinguish bulk deformation processes from sheet metal processes? Answer.. 2. Extrusion is a fundamental shaping process. Describe it. Answer.. 3. Why is the term press working often used for sheet metal processes? Answer. 4. Indicate some of the advantages of cold working relative to warm and hot working. Answer. Multiple Choice Quiz 5. Which of the following are bulk deformation processes (more than one)? (a) bending, (b)...
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