Need little help in the set ups of each formula.

A compacted body of iron powder is sintered into a 20mm-diameter, 45-mm-tall cylinder which, upon weighing, is found to have a mass of 98g. Calculate the apparent density, the percentage of theoretical density, and the void volume (porosity) in percent.

Need to quantify the relationship Ra = C1* s^C2 v^C3 Re^C4

this is for my lab report on effective maching of surface roughness using a lathe. we have been asked to quantify Ra = C1* s^C2 v^C3 Re^C4 where Ra is surface roughness, s is feedrate, v is cutting velocity and Re is the nose radius of the tool. we have performed experiment to get values of Ra for combinations of different v,s and Re. My problem is that I don't kno how to use this data to define the constants in the relationship above. Can you tell me how to do this?

Manufacturing Processes

Please answer the following questions: Certain manufacturing processes have the following characteristics described below. Please characterize the process in terms of : Type of process, state of workpiece material and the type of process energy used. 1. A metal is cast into a mold and solidifies 2. A metal bar is reduced from 2.5 in diameter to 1.5 in diameter 3. Two steel bars are welded together 4. A nickel alloy is joined to a steel alloy at a temperature below their respective melting points 5. A nickel coating is electrochemically deposited on to a steel substrate 6. A polymer + curing agent is forced into a spherical die and cured 7. An aluminum alloy casting is solu... click for more

Manufacturing Processes

1. Explain why studying the types of chips produced is important in understanding cutting operations. 2. Tool life can be almost infinite at low cutting speeds. Would you recommend that all machining be done at low speeds? Explain. 3. Explain the consequences of allowing temperatures to rise to high levels in cutting? 4. What are the effects of performing a cutting operation with a dull tool? 5. An aerospace aluminum alloy has a very high thermal conductivity and strength, but cutting it results in serrated chips. What would you say about the strength of the aluminum at high temperatures? 6. Why does temperature have such an important effect on the life of cutting tools? 7. Can cutting... click for more

Manufacturing processes

1. Explain the factors involved in selecting the appropriate type of abrasive for a particular grinding operation. 2. What are the consequences of allowing the temperatures to rise during grinding? (Q. 25.38). 3. What are the implications of using a smaller abrasive grain size (higher grit number) in a bonded grinding wheel? 4. Why are speeds so much higher in grinding than in cutting? 5. In which of the manufacturing activities in industry is the wire EDM process most applicable? 6. Which of the advanced machining process causes thermal damage? What is the consequence of such damage to work pieces? 7. Describe your thoughts regarding the laser-beam machining of non metallic materials... click for more