Chapter 2 Forging Subjects of interest • Introduction/objectives • Classification of forging processes - Hammer or drop forging - Press forging - Open-die forging - Closed-die forging • Calculation of forging loads • Effect of forging on microstructure • Residual stresses in forgings • Typical forging defects Suranaree University of Technology Tapany Udomphol Jan-Mar 2007 Objectives • This chapter provides fundamental of metal working process for forging in order to understand
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interface with a motion sensor elastic threads (unstretched length about 20 cm) × 4 friction-compensated runway trolley 0.5 kg weights / additional trolleys × 3 electronic balance (optional if the mass of the trolley is known) Part A—Net force and acceleration Procedures: 1. Prepare a set-up to record the motion of a trolley on a runway as shown below. While necessary‚ adjust the runway for friction compensation. 2. Start data-logging. Use 1 elastic thread to pull the trolley along
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Vehicle Design Transmissions Part 1 Dr. Alasdair Cairns Content • Transmission fundamentals – Principles of gears (revision) – Road load losses • Gear ratio optimisation – Performance – Fuel economy Transmissions – Overview Why do we need a gearbox in a road car? Transmissions – Practical Use Seven practical reasons why a gearbox is required: 1. To increase tractive effort when the vehicle is moved from rest 2. To improve hill climbing or descending ability
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D’Alembert’s principle‚ Work- Energy‚ and Impulse- Momentum principle. Mechanics of Deformable bodies PART II 6. Simple stresses and strains 7. Statically indeterminate problems and thermal stresses 8. Stresses on inclined planes 9. Stresses due to fluid pressure in thin cylinders Books for Reference 1.Engineering Mechanics‚ by Meriam & Craige‚ John Wiley & Sons. 2.Engineering Mechanics‚ by Irwing Shames‚ Prentice Hall of India. 3.Mechanics for Engineers‚ by Beer and Johnston‚ McGraw Hills Edition
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PHYSICS 1 FAP0015 Questions & Answers to Physics I Assignments Chapter 1 11. What‚ roughly‚ is the percent uncertainty in the volume of a spherical beach ball whose radius is r = 2.86 ± 0.09 m? Answer: To find the approximate uncertainty in the volume‚ calculate the volume for the specified radius‚ the minimum radius‚ and the maximum radius. Subtract the extreme volumes. The uncertainty in the volume is then half this variation in volume. 3 Vspecified = 4 π rspecified = 4 π ( 2.86 m ) = 9
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Chapter 9 Problems 1‚ 2‚ 3 = straightforward‚ intermediate‚ challenging Section 9.1 Linear Momentum and its Conservation 1. A 3.00-kg particle has a velocity of [pic]. (a) Find its x and y components of momentum. (b) Find the magnitude and direction of its momentum. 2. A 0.100-kg ball is thrown straight up into the air with an initial speed of 15.0 m/s. Find the momentum of the ball (a) at its maximum height and (b) halfway up to its maximum height. 3. How fast can you set the Earth
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pushing a box with a force of 10 N over a distance of 4.0 m in the direction of the force? (A) 0.4 J (B) 4.0 J (C) 40 J (D) 400 J (E) 4000 J 2. A person pushes a 10 kg box at a constant velocity over a distance of 4 m. The coefficient of kinetic friction between the box and the floor is 0.3. How much work does the person do in pushing the box? (A) 12 J (B) 40 J (C) 75 J (D) 120 J (E) 400 J 3. How much work does the force of gravity do in pulling a 10 kg box down a 30º inclined plane of length 8
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Disk With Weight: A 15 kg uniform disk of radius R = 0.25 m has a string wrapped around it‚ and a m = 3 kg weight is hanging on the string. The system of the weight and disk is released from rest. a) When the 3 kg weight is moving with a speed of 2.2 m/s‚ what is the kinetic energy of the entire system? KETOT = KEwheel+KEweight = (1/2)(I)(w2)+(1/2)(m*v2) =(0.5* v2)(m+1/2M) =0.5*(2.2^2)*(3+(.5*15)) J b) If the system started from rest‚
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blah i just want to be able to read this essay so I’m sorry if this isdissappointing to you hold on Physics Pre-AP Projectile Motion Lab Report Purpose The purpose of this lab was to determine how angle and gravity affects velocity and range. Procedure Materials Projectile launcher Marble Two measuring sticks Tin foil Pencil Procedure Set the angle of the projectile launcher to 30 degrees (make sure that the bottom of the launcher is even with the desk). Put the marble inside the
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the force of gravity (acts in a downward direction)‚ the normal force (the support force exerted upon the object that is in contact with another stable object)‚ the force of movement (the force from the wheels-moment of an object) and the force of friction (the force exerted by a surface as an object moves across). According to Isaac Newton’s law of Universal Gravitation‚ objects near the surface of the earth accelerate at a rate of 9.8m/s/s towards the ground. The purpose of this investigation
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