Main factors to be considered when selecting material, Mechanical Engineering

Assignment Help:

Main Factors to be Considered when Selecting Material

The main factors to be considered when selecting a material to meet some specific requirement are:

  • Fitness of use,
  • Formability,
  • Availability, and
  • Cost.

 

To assess the fitness of use, it is necessary to analyze the component function and determine the minimum property requirements (strength, toughness, etc.) required of a material. For any particular application, not all properties are of equal importance, for example creep resistance is of extreme importance for gas turbine disc and blade materials but of no consequence for, say, the transmission shaft of a small car, whereas fatigue resistance would be of equal importance in both cases.

Formability is an important characteristic, as this will affect the production methods to be used and costs of manufacture.

It may seem a fairly obvious point but before selecting a material it is necessary to know whether the chosen material is readily available in the quantities required.

Cost is of vital importance, as the final article must be produced at an acceptable cost if it is to be marketable. The fina1 cost will be based on both the material cost and the costs of processing.


Related Discussions:- Main factors to be considered when selecting material

Shock absorbers, how bike''s hydraulic shock absorbers work?

how bike''s hydraulic shock absorbers work?

Data and tasks - rough-cut capacity planning, Expected quarterly sales in Y...

Expected quarterly sales in Year 1 (vehicles) The work content of a single unit of each product in each process has been estimated at: Using MS-Excel, calculate the workloads

Steps for solving problem for finding power, STEP S FOR SOLVING PROBLEM FO...

STEP S FOR SOLVING PROBLEM FOR FINDING POWER: 1. Use formula stress (s) = force (Maximum Tension)/Area Where; Area = b.t that is, Tmax = σ.b.t 2. Unit mass (m) = r.b.t.

Business Management techniques, how do I Create appropriate costing systems...

how do I Create appropriate costing systems and techniques for specific engineering business functions.

Explain reaction turbine and impulse turbine, Differentiate Reaction turbin...

Differentiate Reaction turbine and Impulse turbine (steam turbines) (b) In a De Laval turbine, steam issue from the nozzle with a velocity of 850 m/s. The nozzle angle is 20 o C

Calculate the actual mechanical output, Question: A 4- pole DC motor is...

Question: A 4- pole DC motor is operated as a separately excited motor.  When the motor is externally driven at 1800 rpm with rated field current and zero armature current,

Calculate the minimum thickness, A circular thin steel diaphragm having an ...

A circular thin steel diaphragm having an effective diameter of 20mm is clamped around its periphery and is subjected to a uniform gas pressure of 180kN/m^2. Calculate the minim

What is a turboprop engine, The grouping of the words turbine and propeller...

The grouping of the words turbine and propeller in techno jargon will give you the word "turboprop". A turboprop engine is a turbojet (gas turbine) engine, which powers the propell

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd