To machine or not to machine, that is the question!” Comparison of machining energy with forming...
To machine or not to machine, that is the question!”
Comparison of machining energy with forming energy
You are given two pieces (call them “A” and “B”) of annealed 304 stainless steel rods, each with a diameter of 0.5 in and a length of 6 in. You are asked to reduce their diameter to 0.48 in by using two processes:
a) Pull “A” in a tensile tester, calculate the work required in units of in*lb
b) Machine “B” on a lathe in one pass, calculate the work required in units of in*lb
Type your short answers (no need to upload a PDF of your work) to a) and b)
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To machine or not to machine, that is the question!”
Comparison of machining energy with forming...
Materials Forming: A solid cylinder of uniform circular cross-section is compressed axi-symmetrically to half its initial...
Materials Forming: A solid cylinder of uniform circular cross-section is compressed axi-symmetrically to half its initial height. Calculate the three true (log) strains (axial, radial, circumferential) and the total effective true strain (von Mises strain) (10 points) Machining: In a cylindrical turning operation on a horizontal engine lathe we have the following data: Work diameter: 1 inch, Work length: 3 inches, spindle speed: 200 rpm, tool feed rate: 0.01inch/rev., depth of cut per pass: 0.2 inch, ultimate shear strength (USS)...
Question 1 2) Manufacturing processes can be classified into 2 (Two) major groups. Briefly describe the...
Question 1 2) Manufacturing processes can be classified into 2 (Two) major groups. Briefly describe the characteristics of each group. Aid your answer with hierarchy. (10 marles) 1) Sand casting is a process for casting metal in sand molds. Explain FIVE (3) sand casting benefits to the industry (marks) Riser, also known as feeder, is an important part in a sand mold. Briefly describe the function of a riser in a sand casting mold Hence, illustrate the possible types and...
Question 1 A turning operation is carried out on aluminum. Based on the specific energy values...
Question 1 A turning operation is carried out on aluminum. Based on the specific energy values in Table 20.2, determine material removal rate and cutting power in the operation under the following sets of cutting conditions: (a) Cutting speed 5.6 m/s, feed 0.25 mm/rev, and depth of cut 2.0 mm; and (b) cutting speed- 1.3 m/s, feed 0.75 mm/rev, and depth 4.0 mm. Question 2 Consider a turning operation performed on steel whose hardness 225 HB at a cutting speed...
Materials Forming: A solid cylinder of uniform circular cross-section is compressed axi-symmetrically to half its initial height. Calculate the three true (log) strains (axial, radial, circumferential) and the total effective true strain (von Mises strain) (10 points) Machining: In a cylindrical turning operation on a horizontal engine lathe we have the following data: Work diameter: 1 inch, Work length: 3 inches, spindle speed: 200 rpm, tool feed rate: 0.01inch/rev., depth of cut per pass: 0.2 inch, ultimate shear strength (USS)...
Question 1 2) Manufacturing processes can be classified into 2 (Two) major groups. Briefly describe the characteristics of each group. Aid your answer with hierarchy. (10 marles) 1) Sand casting is a process for casting metal in sand molds. Explain FIVE (3) sand casting benefits to the industry (marks) Riser, also known as feeder, is an important part in a sand mold. Briefly describe the function of a riser in a sand casting mold Hence, illustrate the possible types and...
Question 1 A turning operation is carried out on aluminum. Based on the specific energy values in Table 20.2, determine material removal rate and cutting power in the operation under the following sets of cutting conditions: (a) Cutting speed 5.6 m/s, feed 0.25 mm/rev, and depth of cut 2.0 mm; and (b) cutting speed- 1.3 m/s, feed 0.75 mm/rev, and depth 4.0 mm. Question 2 Consider a turning operation performed on steel whose hardness 225 HB at a cutting speed...
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