Question

1- whay in hot extrusion accoure Reduction of grain flow characteristics in the final product ?...

1- whay in hot extrusion accoure Reduction of grain flow characteristics in the final product ?

2- whay in hot extrusion Reduction strength and increasing ductility of the metal?

3-whay in hot forging required lower force?

Engineering   Mechanical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

(1) In hot extrusion as metal is heated till recrystallization temperature then as load is applied to metal then as billets are formed then grain flow size reduces in final size of product.

(2) In hot extrusion in order to reduce net extrusion force to push metal,strength is reduced and ductility is increased by heating metal before applying load.

(3) In hot forging low force is required as metal is heated and strain hardening is reduced and ductility is increased.

IF YOU HAVE ANY KIND OF DOUBT FEEL FREE TO ASK IN COMMENTS.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Characteristics of TIA Temporarly reduction of the cerebral blood flow. The symptoms lasts for 1 minute...
Characteristics of TIA Temporarly reduction of the cerebral blood flow. The symptoms lasts for 1 minute to 1 hour. muscular characteristics such as Difficulty in walking Muscle weakness Probles with coordination Weakness one side of the body speech Slurred speech Impaired voice visual Blurred vision Vision loss facial Muscle weakness Numbness Others Difficulty to swallo Mental confusion Reduced sensation to touch Feeling faint Light headedness or Vertigo​​​​​​​
1-which one does not correspond to mechanism strengthening? a-alloying or dopping with impurities b-grain-size reduction c-grain...
1-which one does not correspond to mechanism strengthening? a-alloying or dopping with impurities b-grain-size reduction c-grain growth d-strain hardening 2-in polycrystals, the grains with the lowest resolved shear stress always yields firts. true or false 3-resolved shear stress is the result of the application of simple shear stress to a piece of material. true or false 4-decrease on strain hardening? a-percent enlogation b-elastic modulus c-yield strenght d-hardness 5-which term is different from other options? a-strain hardeninh b-dislocation hardening c-cold working...
What is the final percentage strength (w/w) of a product made by combining 30 grams of...
What is the final percentage strength (w/w) of a product made by combining 30 grams of a 50% powder with 20 grams of a 10% powder and 50 grams of lactose (a diluent with 0% active ingredient)? Enter your answer as a number with the appropriate units. QUESTION 2 When using the method of alligation, active ingredient should be set to a strength of _____%. QUESTION 3 How many milliliters of a 1% (w/v) stock solution of a drug should...
Indicate the most appropriate processing method to make the item described below. a. sand casting b....
Indicate the most appropriate processing method to make the item described below. a. sand casting b. die casting c. forging d. powder metallurgy e. drawing f. extrusion g. welding h. hot rolling i. cold rolling j. pressing and blowing k. slip casting l. powder pressing m. firing n. tape casting o. thermal tempering p. mixing with water q. injection molding r. melt spinning s. wet spinning t. dry spinning u. dry-jet wet spinning v. blow molding 1. 4340 alloy steel...
1. A firm employs workers until the final worker's marginal Revenue Product is equal to his...
1. A firm employs workers until the final worker's marginal Revenue Product is equal to his _________________________ a. wage b. output c.marginal revenue cost d. marginal profit 2. Suppose that a D'Lish Hamburger stand produces burgers and hires employees.  Lets suppose that the owner, Dave, makes $0.25/burger in profit not including what he pays his employees. Complete the following chart with respect to employees hired in the following order assuming that he hires all 3 and only these 3. # name...
1. Prepare a flow diagram showing the procedure for isolation and purification of the product. Where...
1. Prepare a flow diagram showing the procedure for isolation and purification of the product. Where does the triphenylphosphine oxide byproduct end up? 2. Show how the starting phosphonium reagent could be prepared. 3. Sodium hydroxide is a very mild base for deprotonation of the phosphonium salt. For methyl triphenylphosphonium chloride, n-butyllithium is the typical base of choice. Why is possible to use NaOH here? (To state it another way, why is this phosphonium salt so acidic?)
1) Use ec= (TH– TC)/THwhere THis hot temperature (in the Kelvin scale, K) and Tcis the...
1) Use ec= (TH– TC)/THwhere THis hot temperature (in the Kelvin scale, K) and Tcis the cold. If TH= 700 K and TC= 300 K, what is the efficiency eC(Number less than 1, no units)? 2) The electric potential (voltage) is the amount of work in joules require to move one coulomb (C) of charge. How much work is required to move 2 C through 12 V of potential? (only number, no units) 3) What is the force between two...
True or False: 1. A company with high operating leverage will experience a lower reduction in...
True or False: 1. A company with high operating leverage will experience a lower reduction in net operating income in a period of declining sales than will a company with low operating leverage 2. A shift in the sales mix from products with high contribution margin ratios towards products with low contribution margin ratios will raise the break-even point -------------------------- 3. Which of the following is true regarding the contribution margin ratio of a single product company? A. As fixed...
Questions from Calorimeter Lab: 1) Examine the initial and final temperatures in Part I. Explain how...
Questions from Calorimeter Lab: 1) Examine the initial and final temperatures in Part I. Explain how the temperatures tell you what type of thermochemical reaction was involved (endothermic or exothermic). 2) We assumed that no heat is lost to the surroundings beyond the nested coffee cups. In Part I, obviously there would have been some loss in heat as the hot metal is transferred to the calorimeter. How does that unavoidable heat loss affect your calculated specific heat of the...
Cash Flow Estimation: Example 1: You are considering expanding your product line. You feel you can...
Cash Flow Estimation: Example 1: You are considering expanding your product line. You feel you can sell 100,000 of these products per year for 4 years (after which time this project is expected to shut down). The product will sell for $6 each, with variable costs of $3 for each one produced, while annual fixed costs associated with production will be $90,000. In addition, there will be a $200,000 initial expenditure associated with the purchase of new production equipment. It...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT