Circles of a metal are being punched that will be later stamped into coins. The metal has a shear strength of 32,575 psi. The sheets are 2.1 mm thick. The coin blanks are to be 16.5 mm in diameter. If sheet of metal is expected to produce 50 coin blanks, how much force is required to punch the sheets?

Circles of a metal are being punched that will be later stamped into coins. The metal has a shear strength of 32,575 psi. The sheets are 2.1 mm thick. The coin blanks are to be 16.5 mm in diameter. If sheet of metal is expected to produce 50 coin blanks, how much force is required to punch the sheets?

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter25: Testing And Inspection

Section: Chapter Questions

Problem 25R: What would be the longitudinal shearing strength per millimeter of a specimen that was 50.8 mm wide...

See similar textbooks

Similar questions

What is the force required to punch a 20-mm diameter hole in a plate that is 25 mm thick? Shear strength of the plate is 350 MN/m2.
Manufacturer process A compound die will be used to blank and punch a large rectangle (90x150mm blank dimensions) out of 6061ST aluminum alloy sheet stock 3.5 mm thick. The diameter of inside hole is 25 mm. The aluminum sheet metal has a tensile strength = 310 MPa. Determine the minimum tonnage press (force) to perform the blanking and punching operation (1) assume that blanking and punching occur simultaneously and (2) assume that punching occurs first, then blanking. Take: Ac=0.06
A compound die will be used to blank and punch a large rectangle (90x150mm blank dimensions) out of 6061ST aluminum alloy sheet stock 3.5 mm thick. The diameter of inside hole is 25 mm. The aluminum sheet metal has a tensile strength 310 MPa. Determine the minimum tonnage press (force) to perform the blanking and punching operation (1) assume that blanking and punching occur simultaneously and (2) assume that punching occurs first, then blanking, Take: Ac-0.06
What force is required to punch a 20-mm diameter hole through a 10-mm thick plate. The ultimate strength of the plate material is 450 MPa.
Questions: 1. Two thick slabs of 300mm each, the first one is used in cold rolling where u=0.08 while the second is used in cold rolling where u-0.5. The mill roll diameter in each case is the same as 600mm. Determine the max draft (reduction) in both cases. Discuss the wide difference in results. = 2. A tensile specimen of the metal of 100 mm is length stretched to a length 157 mm during the rolling process. If the metal has a flow curve with parameters: K = 850 MPa and strain hardening exponent n = 0.30. Determine the average flow stress that the metal has been subjected to during the deformation.
No wrong answer please , i could downvote The piece of suture is tested for its stress relaxation properties after cutting 3 cm long sample with a diameter of 1mm. The initial force recorded after stretching 0.1 cm between grips was 5 Newtons. Assume the suture material behave as if it has one relaxation time. The gage length was 1 cm. a. Calculate the initial stress. b. Calculate the initial strain. c. Calculate the modulus of elasticity of the suture if the initial stretching can be considered as linear and elastic. d. Calculate the relaxation time if the force recorded after 10 hours is 4 Newtons.
What force is required to punch a 2-inch hole on a 3/8 in thick plate if the allowable shearing strength of the plate is 42,000 psi? Show the free body diagram.
Choose the correct answer for the following: 1. In the bulk deformation process, there is a change in the thickness of the wokpiece. Thus, the ratio of the surface area to the volume is... c. small. a. equal. 2. In the metal forming process, if the temperature increases, the metal working becomes easier due to reducing in .. a. n and K. 3. The true tensile strain can be calculated from the following relation... B. very high. b. melting temperature. C. hardness a. e =In (1+e). b. e =In). C. e = In() e =In(; 4. In rolling operation, large diameter roll induces.. on the surface of the rolled part. b. tension stress. a. compression stress. c. no residual stress 5. the preheating treatment is not necessary if the carbon equivalent in the steel part is ... b. 0.6 a. 0.3 c. 0.8
What would be the longitudinal shearing strength per millimeter of a specimen that was 50.8 mm wide and 116 mm long and withstood 23,000 kg/mm?
If the ultimate shear strength of a steel plate is 42,000psi. What is the force necessary to puncha 0.75in diameter hole in a 0.625in thick plate
A compound die will be used to blank and punch a large washer out of 6061ST aluminum alloy sheet stock 4.50 mm thick. The outside diameter of the washer is 60.0 mm and the inside diameter is 25.0 mm. Determine the punch and die sizes for the blanking operation. Determine the force required to perform the blanking and punching operation, assuming that the punches are staggered so that punching occurs first, then blanking. The aluminum sheet metal has a tensile strength = 310 MPa. Consider a clearance allowance value of 0.060.
A 20 mm diameter rivet is used to fasten two 25 mm thick place. If the shearing stress is 80 MPa, what tensile force applied to each plate that will shear the bolt?