2. A screw clamp shown in the figure has a horizontal handle with diameter 3/8-in made of cold-drawn AISI 1006 steel. The overall length of the handle is 4.25 in. The screw is single-threaded, 3/4 in-10 UNC, and is 8 in long, overall. a. What screw torque will cause the horizontal handle to bend permanently? b. What clamping force will the answer to part a) cause if the collar friction is neglected and if the thread friction is 0.15? Hint: 1) Assume a force F is applied at the end of the handle. Think about how this force affects the screw vs. how it affects the handle. 2) Consider in which direction the screw is “raised". 4.25 in

2. A screw clamp shown in the figure has a horizontal handle with diameter 3/8-in made of cold-drawn AISI 1006 steel. The overall length of the handle is 4.25 in. The screw is single-threaded, 3/4 in-10 UNC, and is 8 in long, overall. a. What screw torque will cause the horizontal handle to bend permanently? b. What clamping force will the answer to part a) cause if the collar friction is neglected and if the thread friction is 0.15? Hint: 1) Assume a force F is applied at the end of the handle. Think about how this force affects the screw vs. how it affects the handle. 2) Consider in which direction the screw is “raised". 4.25 in

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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34 in 3. The following data apply to the C-clamp: a. The screw is ACME with ¾" Diameter b. Coefficient of thread friction = 0.12 c. Coefficient of collar friction = 0.23 d. Mean collar radius = 0.55 in. e. Max. clamping force = 1000 lb Determine: The tightening torque The operator force at the end of the handle (Note: Use table 8-3 to determine the screw pitch (p))
10) A screw clamp similar to the one shown in the figure has a handle with diameter in made of cold-drawn AISI 1006 steel. The overall length is 3 in. The screw is in-14 UNC and is 5 in long. overall. Distance A is 2 in The clamp will accommodate parts up to 4 in tagh. (a) What screw torque will cause the handle to bend permanenly? See sample problem 10.1, sections 10.4, 10.7 Given; hordle dia : 16 in L: 3in. Disa: Zin 10/29 Find: Scrcw torque ,! Assumphon : The screw torque is far cold decun AISI 1006 steel. a L: 3- 8 2.406 in %3D 4 32 T: 2.406F H:(L-3) -굵)F. 2.188F F- (2406 F: 2.188F Sy: 41 Kpsi. 32 (2-188) F TI (O.1875)3 Sy = 32M F-12:13 1bf T. 2.406 CI2:13) = 29.216f. in The lorque of the screw which will couse the scoch to bend pemorently is 29.21of. in. is 29.210f.10.
Please answer in this format. Sketch: Given: Required: Solution: (Please answer in detailed (step by step). Indicate labels on what you are doing/performing, for example what formula is used) A torque To is transmitted between two flanged shafts by means of four 20-mm bolts. diameter of the bolt circle is 2=150mm. If the allowable shear stress in the bolts is 90 Mpa, what is the maximum permissible torque? Disregard friction between between flanges. The To
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Solve the following problems as stated below. Draw the figure and FBD. PROBLEM A flanged bolt coupling consist of 9 steel bolts evenly spaced around a bolt circle 300 mm. in diameter and 6 bronze bolts on a concentric bplt circle 200 mm. in diameter. What are the sizes of bolts diameters for steel and bronze, if the torque applied is 6,000 N-m and without exceeding the stress of 60 MPa in the steel and 40 MPa for the bronze? The ratio of the bolt diameter d, / ds = 0.50. For steel, use Gs = 83 GPa and for bronze, G, = 28 Gpa. %3D Rs Rp
1. A jack having square threads of 50 mm nominal diameter and 10 mm pitch is supporting a load of 89 kN. A double thread is used and the coefficient of friction maybe as low as 0.10 or as high as 0.15.a. Will this screw always self-locking?b. What is the highest torque necessary to raise the load?c. What maximum torque is necessary to lower the load?d. What is the maximum torsional shear stress induced on the screw?
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A screw clamp similar to the one shown in the figure has a handle with diameter in made of cold-drawn AISI 1006 steel. The overall length is 3 in. The screw is in-14 UNC and is 5 in long, overall. Distance A is 2 in. The clamp will accommodate parts up to 4 in high. (a) What screw torque will cause the handle to bend permanently? (b) What clamping force will the answer to part (a) cause if the collar friction is neglected and if the thread friction is 0.075? ट Problem 8-7 B !!!!!!!
L21. Figure P4-21 shows an anvil for an impact hammer held in a fixture by a circular pin. If the force is to be 500 lb, specify a suitable diameter for the steel pin if it is to be made from SAE 1040 WQT 900. 4-21
M P 1: Y A :s.google.com Q1 * Find the number of bolts M8 1 which made from SAE Grade 4 steel that should be used to provide a clamping force of 60 KN between two components of a machine. Also, specify the required tightening torque. (Hint: assume that cach bolt is limited to be stressed to 65% of its proof strength). 1 Add file Q2 * A flat plate with a central hole is subjected to an axial tensile force F of 9.8 KN, as shown in the figure below. Calculate the minimum thickness t of the plate. Given that the material of the plate can support maximum tensile stress of 75 N.mm, w = 10 cm and d = 3 cm. Thickness =t F 1 Add file Submit Clear form II