A cylindrical specimen of a cold-worked brass has a ductility (%EL) of 33%. If its cold-worked radius is 11 mm, what was its radius before deformation? You may need to use Animated Figure 7.19c.
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A cylindrical specimen of a cold-worked brass has a ductility
(%EL) of 33%. If its cold-worked...
Summer 2 Name: Question 3: (10 points) A cylindrical specimen of cold-worked copper has ductility (%EL)...
Summer 2 Name: Question 3: (10 points) A cylindrical specimen of cold-worked copper has ductility (%EL) of 30%. (a) If its cold worked radius is 6.4 mm, what was its radius before deformation? (b)What are its tensile and yield strengths? 140 120 800 900 1040 Steel 1040 S 700 800 100 120 600 a700 80 100 E 500 600 400 Br Brass 500 300 Capper 40 400 200 Capper 300 20 100 200 10 20 30 40 50 70 10...
Question 4: A cylindrical specimen of cold-worked copper has a ductility (%EL) of 25% What is its tensile strength? (a...
Question 4: A cylindrical specimen of cold-worked copper has a ductility (%EL) of 25% What is its tensile strength? (a) (b) If its cold-worked radius is 10 mm, what was its radius before deformation? 70 140 120 900 800 1040 Steel 60 120 1040 Stee 800 700 100 50 700 600 100 80 40 600 500 Brass Brass 80 30 60 400 500 Brass 20 Copper 40 300 60 400 Copper 10 1040 Stee 200 300 40 20 Copper 100...
A cylindrical specimen of cold-worked copper has a ductility (P%EL) of I15 % If its cold-worked...
A cylindrical specimen of cold-worked copper has a ductility (P%EL) of I15 % If its cold-worked radius is 6.4 8 (0.25 in.), what was its radius before deformation? mm
4. (10pts) A cylindrical specimen of cold-worked copper has a ductility (%EL) of 15%. If its...
4. (10pts) A cylindrical specimen of cold-worked copper has a ductility (%EL) of 15%. If its cold-worked radius is 6.4 mm, what was its radius before deformation? (The graphs on the last page might be useful)
this all of it !!! 4. Two previously undeformed specimens of the same metal are to...
this all of it !!!
4. Two previously undeformed specimens of the same metal are to be plastically deformed by reducing their cross-sectional areas. One has a circular cross section, and the other is rectangular during deformation the circular cross section is to remain circular, and the rectangular is to remain as such. Their original and deformed dimensions are as follows: Rectangular (mm) Circular (diameter, mm) 125x 175 15.2 Original dimensions 7.5x 200 Deformed dimensions 11.4 Which of these specimens...
A cylindrical car component with 7 mm diameter is to be manufactured. The component is required...
A cylindrical car component with 7 mm diameter is to be manufactured. The component is required to possess a yield strength of at least 700 MPa and an elongation to fracture of at least 11%. For this purpose, you use a cylindrical steel 1040 rod with an initial diameter of 9 mm. The percent cold work cannot exceed 40% during any single cold deformation step in order to avoid cracking. Using the diagram below, describe your manufacturing procedure for this...
A cylindrical rod of 1040 steel having originally 11.4 mm in diameter is cold-worked by drawing...
A cylindrical rod of 1040 steel having originally 11.4 mm in diameter is cold-worked by drawing (i.e. pulling through a die with a hole smaller than the original rod cross section). The circular cross section will be maintained during deformation. The deformed steel is desired to have tensile strength in excess of 825 MPa and ductility of at least 12% EL. The final diameter must be 8.9 mm. Explain how this may be accomplished.
Dura Total: 75 points initial diameter of 25.1 mm is to be cold worked by drawing...
Dura Total: 75 points initial diameter of 25.1 mm is to be cold worked by drawing in order to reduce the (Crigh cctional area such that the final diameter is 22.5mm. Figures 7.19a left) and 7.1e In. Deformation -cold working: A non-cold-worked 1040 steel cylindrical bu 7.19c (right) from the text are provided. 040 60 10 1040 ste Coopar Percent cold work a. Determine the ductility (%EL) and yield strength of the steel rodaner a single drawing process reducing the...
28. It is necessary to seleet a metal allo y for an application that requires a...
28. It is necessary to seleet a metal allo y for an application that requires a yield strength of at least 300 MPa while maintaininga minimum ductility ( % EL) of 15%. ( 12 points) 120 800 1040 Steel Brass Coppert 4o 107040 Shee 100 o 10 20 30 40 50 60 70 Percent cold work 10 20 30 40 50 60 7 Percent cold work a) If the metal may be cold worked, decide which of the followi ng...
The figure shown below shows the effect of cold-working on the mechanical properties of brass (70%...
The figure shown below shows the effect of cold-working on the mechanical properties of brass (70% copper and 30% zinc). A brass wire is to be cold-worked by drawing from 15mm to 11mm (You did this calculation in question 1 already). What are the tensile strength, yield strength and ductility (in % elongation) of this wire after being cold-drawn? (6 points) 2 800 0 700 600 60 S 500 40 O 400 30 300 20 5 200 10 100 10...
Summer 2 Name: Question 3: (10 points) A cylindrical specimen of cold-worked copper has ductility (%EL) of 30%. (a) If its cold worked radius is 6.4 mm, what was its radius before deformation? (b)What are its tensile and yield strengths? 140 120 800 900 1040 Steel 1040 S 700 800 100 120 600 a700 80 100 E 500 600 400 Br Brass 500 300 Capper 40 400 200 Capper 300 20 100 200 10 20 30 40 50 70 10...
Question 4: A cylindrical specimen of cold-worked copper has a ductility (%EL) of 25% What is its tensile strength? (a) (b) If its cold-worked radius is 10 mm, what was its radius before deformation? 70 140 120 900 800 1040 Steel 60 120 1040 Stee 800 700 100 50 700 600 100 80 40 600 500 Brass Brass 80 30 60 400 500 Brass 20 Copper 40 300 60 400 Copper 10 1040 Stee 200 300 40 20 Copper 100...
A cylindrical specimen of cold-worked copper has a ductility (P%EL) of I15 % If its cold-worked radius is 6.4 8 (0.25 in.), what was its radius before deformation? mm
4. (10pts) A cylindrical specimen of cold-worked copper has a ductility (%EL) of 15%. If its cold-worked radius is 6.4 mm, what was its radius before deformation? (The graphs on the last page might be useful)
this all of it !!!
4. Two previously undeformed specimens of the same metal are to be plastically deformed by reducing their cross-sectional areas. One has a circular cross section, and the other is rectangular during deformation the circular cross section is to remain circular, and the rectangular is to remain as such. Their original and deformed dimensions are as follows: Rectangular (mm) Circular (diameter, mm) 125x 175 15.2 Original dimensions 7.5x 200 Deformed dimensions 11.4 Which of these specimens...
A cylindrical car component with 7 mm diameter is to be manufactured. The component is required to possess a yield strength of at least 700 MPa and an elongation to fracture of at least 11%. For this purpose, you use a cylindrical steel 1040 rod with an initial diameter of 9 mm. The percent cold work cannot exceed 40% during any single cold deformation step in order to avoid cracking. Using the diagram below, describe your manufacturing procedure for this...
Dura Total: 75 points initial diameter of 25.1 mm is to be cold worked by drawing in order to reduce the (Crigh cctional area such that the final diameter is 22.5mm. Figures 7.19a left) and 7.1e In. Deformation -cold working: A non-cold-worked 1040 steel cylindrical bu 7.19c (right) from the text are provided. 040 60 10 1040 ste Coopar Percent cold work a. Determine the ductility (%EL) and yield strength of the steel rodaner a single drawing process reducing the...
28. It is necessary to seleet a metal allo y for an application that requires a yield strength of at least 300 MPa while maintaininga minimum ductility ( % EL) of 15%. ( 12 points) 120 800 1040 Steel Brass Coppert 4o 107040 Shee 100 o 10 20 30 40 50 60 70 Percent cold work 10 20 30 40 50 60 7 Percent cold work a) If the metal may be cold worked, decide which of the followi ng...
The figure shown below shows the effect of cold-working on the mechanical properties of brass (70% copper and 30% zinc). A brass wire is to be cold-worked by drawing from 15mm to 11mm (You did this calculation in question 1 already). What are the tensile strength, yield strength and ductility (in % elongation) of this wire after being cold-drawn? (6 points) 2 800 0 700 600 60 S 500 40 O 400 30 300 20 5 200 10 100 10...
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