What are the difference between Hot Working and cold working?

Please find bellow the defferane between Hot Working and cold working of Manufacturing

SL	HOT WORKING	COLD WORKING
1	Working temperature is above the re crystallization temperature. Therefore, it can be regarded as a simultaneous process of deformation and recovery.	Cold working temperature is below the crystallization temperature.So no appreciable recovery can take place during deformation.

Is investment casting economical than other casting process?

The investment casting is economical than other casting processes due to the following reasons

– Parts of great complexity and intricacy can be cast

– Close dimensional control and good surface finish

What does you mean by casting process? and why we use casting?

Casting is a manufacturing process by which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process. Casting materials are usually metals or various cold setting materials that cure after mixing two or more components together; examples are epoxy, concrete, plaster and clay. Casting is most often used for making complex shapes that would be otherwise difficult or uneconomical to make by other methods.

Short note on Modularity of design

MODULARITY

It is architecture of product which gives different model of product on different cost. Means customer can buys the product as per his budget and need. It can defined as 

”the property of functional flexibility built into the product by assembling discrete unites which can be joined to or arranged with other parts or modules”.

What does you mean for design for safety and what are the necessary step you take for that?

To provide safety of user while using the product is responsibility of designer. If any accident has occurred while using the product the user may demand the compensation, because it is also mention our constitution. Compensation varies country to country. Many times we have seen about compensation which is announced by railway administration for injured person in trains accident. Because responsibility to safety in train journey is of railway railway administration and this accident occurs due to failure railway system. This is also valid for products or building etc. It means designer will stop to design the product or any other? NO. They will design but with considering design for safety which will reduce the responsibility. Thus we can say that design for safety is tool of reducing the responsibility of designer. Following points should always be kept in mind at the time of designing or manufacturing.

Grade Card of summer 2013

Hi friend it is very frustrating that all we have to wait long time to get our grade card after declaring the result. Now lots of problem create because of that like IEIndia start to providing facility to reviewing your answer sheet. For reviewing your answer sheet you have to send application along with DD within 15 days after declared of result now question is without know your obtaining marks how can you apply for that. I think and in my opinion IEIndia should change their attitude and work culture which they have shown. Because huge student base are waiting for that.

So forget about that now it is turn in routine of IEIndia but we hope today may chance to published grade card at evening wait and check .For checking you have to click on bellow link

http://www.ieindia.org/online/Login.aspx

What is a significance of feasibility study and Write 5 differences between Evolution and innovative design ?

A design projects begins with the feasibility study. The purpose of this phase is to achieve a set of useful solutions to the design problem. Sometimes, a design group is assigned to a project for which a design concept has already been fixed. In this case, the first step in the study process is to demonstrate whether there is an original need, which was presumed to be valid, thus indeed have current existence, or strong evidence of latest existence.  The next step is to explore the design problem and to identify its elements such as, parameters, constraints and major design criteria. In the next step, an effort is made to conceive a number of possible solutions.

How does need analysis help to build a good product design? Explain with example

Suppose we have to manufacture a mobile and following are the customer needs, we have got after primary identification of need :- 

• seamless communication 
• sms 
• videos 
• recording videos as well voice