The top surface of a rectangular work part is machined in a peripheral milling operation. The work part is 735 mm long by 50 mm wide by 95 mm thick. The milling cutter, which is 65 mm in diameter and has five teeth, overhangs the width of the part equally on both sides. Cutting speed = 60 m/min, chip load = 0.20 mm/tooth, and depth of cut = 7.5 mm.

(a) Determine the time required to make one pass across the surface, given that the setup and machine settings provide an approach distance of 5 mm beforeactual cutting begins and an over travel distance of 25 mm after actual cutting has finished.

(b) What is the maximum material removal rate during the cut?

(c) If the workpiece has surface scale, would you recommend conventional milling or down milling? Why?

1)Consider water at 500 kPa and a specific volume of 0.2 m3/kgm3/kg. What is the temperature (in °C)?

2)Consider water at 500 kPa and a specific volume of 0.2 m3/kgm3/kg. What is the quality (on a 0 to 1 scale)?

3)Consider water at 1400 kPa and 200°C. What is the specific volume (in m3/kgm3/kg)?

to build a robot capable of handling 150lbs.how do I pick a motor considering all of the specs I see are for example rpm=2500 volts=12 gear ratio = 10:14.
I am new to this so all the info I can get will help.Thanks

What is meant by:

1. Hydrophilic?

2. Hydrophobic?

3. Surface wetting?

4. Capillary action?

Please type your answer, do not write it.

a) What are the disadvantages of using single coil springs for mechanical seals? b) What are the main advantages associated with the use of multi-coil springs?

Air enters the compressor at 100 kPa, 300 K and is compressed to 1000 kPa. The temperature at the inlet to the first turbine stage is 1400 K. The expansion takes place isentropically in two stages, with reheat to 1400 K between the stages at a constant pressure of 300 kPa. A regenerator having an effectiveness of 100% is also incorporated into the cycle. The turbine and the compressor each have am isentropic efficiency of 80%. Determine the following:

(a.) the thermal efficiency of the cycle

(b.) the back work ratio

(c) the net power developed

Manufacturing Technology

1. Hot pressing forming (HPF)

(i) what is that
(ii) how its work

A vessel initially containing 1 kmol of CO and 4.76 kmol of dry air forms an equilibrium mixture of CO2, CO, O2, and N2 at 2800 K, 1 atm. Determine the equilibrium composition.

define total productive maintenance

discuss in details scheduled discard tasks

1. What are the essential and desirable requirements of materials for eyeglass?

2. What are the essential and desirable requirements of materials for a disposable water bottle that does minimal environmental harm?

Explain the biggest challenge in maintaining a geothermal power plant.

Research the history of metals. Create a 15-20 slide powerpoint presentation.

The slide should have key points and in depth discussion should be in the notes section.