Calculate the forging force for a solid, cylindrical workpiece made of annealed 1020 steel that is 3.5 in. high and 5 in. in diameter and is to be reduced in height by 30%.  Let the coefficient of friction be 0.15 and ignore the effects of barreling.

What is a sensor? Explain the various types.

Discuss the following types of AGVs and their applications: 2.1 towing machines 2.2 unit load transporters 2.3 pallet trucks 2.4 fork lift trucks 2.5 assembly line vehicles

An FMS consists of three stations plus a load/unload station. Station 1 loads and unloads parts using two servers (material handling workers). Station 2 performs horizontal milling operations with two servers (identical CNC horizontal milling machines). Station 3 performs vertical milling operations with three servers (identical CNC vertical milling machines). Station 4 performs drilling operations with two servers (identical drill presses). The machines are connected by a part handling system that has two work carriers and a mean transport time = 3.5 min. The FMS produces four parts, A, B, C, and D, whose part mix fractions and process routings are presented in the table below. The operation frequency is fijk = 1.0 for all operations. Determine (a) maximum production rate of the FMS, (b) utilization of each machine in this system, and (c) average utilisation of the system U s .

a) Assume that you have two AISI 1045 cylindrical samples with two different diameters: one 1 in. thick and the other 2 in. thick. You astenitize and quench both samples in water. Then you cut a section and measure the hardness at the center of each sample. Would you expect to get the same results? Explain your answer.

b) Assume that you have two cylindrical steel samples with 1 in. diameter, one made out of AISI 1045 and another one made out of AISI 4140. You austenitize and quench both samples in oil. Then you cut a section and measure the hardness at the center of each sample. Would you expect to get the same results? Explain your answer.

At mechanics of metal cutting,

I cannot understand the reason why the shear angle is smaller when the cutting speed is slow.

can you explain this to me?

STAR CCM+

Can someone please explain in your own words the "law of wall " for turbulent flow 3D.

what is wall Y+ value.

Precision Machining Technology (2nd Edition)

Chapter 8SU8, Problem 6RQ

Why should a toolpath be verified on the screen of a CAM system prior to creating the program code?

Thanks!

Ship accident due to loss of resilience.

Find the Cases of accidents, causes of accidents, and solutions.

A rigid tank of volume 0.63 m3 initially has some air inside at 0.5 bar and 300 K. A hole develops in the wall, and air from the surroundings at 1 bar, 300 K flows in until the pressure in the tank reaches 1 bar. Heat transfer between the contents of the tank and the surroundings is negligible. Determine the final temperature in the tank, in K. What is the entropy generation of the process?

(Please treat the air as ideal gas with cp=1.001 kJ/kg?K and cv=0.714 kJ/kg?K)

What is an autoclave and why would you use one?

3) Sketch a vacuum bag setup (label all the layers). Explain what benefits are gained by vacuum bagging.

1) What are the differences between the wet lay-up approach and the prepreg approach in hand lay-up? Include both process differences and differences in the final product. Make a list.

• Differences  

• Similarities

Use superposition to solve for applied stresses on a cantilever beam

Soybean oil at 30 degress Celsius is to be pumped from an open vat through 60 m of standard galvanized iron pipe (internal diameter of 9 cm) into the top of a stroage tank that is 17 m above the surface of the vat. The pipeline contains 3 type B elbows and a gate valve. It is desired to pump the oil at 13.7 m^3/hr.

1) How much work head must be added by a pump at this pumping rate?

2) Assuming 75% efficiency, what size motor (watt) would the pump require?

3) What percentage of the total frictional head loss is due to pipe friction alone (major losses)?