Published on 17th Oct '14 17:11
Number of Views: 2014
This is a two part article that's written with the novice or beginner designer/inventor in mind.
The intent of this first article is to hopefully guide you through some of the various minefields that you'll encounter, and to also look at the major challenges that any design has to face – from conceptualization to the realistic possibility of your idea being put into production.
Published on 1st May '14 14:00
Number of Views: 4125
1. The pay is great. According to payscale.com, 7 of the top 10 starting salaries in the US are in engineering (with mechanical engineering coming it right at number ten). This means that, as a mechanical design engineer, you can expect to bring in a pretty hefty salary.
2. You will be consistently challenged. The gift and curse of the technical disciplines…if you’re the type of person who likes to go on auto-pilot or slack off all
Published on 22nd Apr '14 22:00
Number of Views: 1146
Managing and maintaining technical files is a common problem within the engineering discipline. When it comes to design data, a huge and diverse body of iterated data is often too much to deal with through manual naming and file organization alone. A shared drive or a server along with a standard archiving method is the normal solution but it’s a risky one for the following reasons:
1) Such an approach might work for one design engineer,
Published on 3rd Apr '14 12:00
Number of Views: 1366
Flat strip parts can be very complicated in their form. Inside many products such as mobile phones, computers and medical equipment there are a wide variety of shapes all formed from a simple coil or sheet of flat material. Many flat strip parts are designed to perform more than one mechanical function thereby reducing the number of components.
The number of different variations of strip parts is virtually infinite. The only obstacle
Published on 31st Mar '14 23:36
Number of Views: 1014
Nesting springs means to have one or more springs fitted inside a larger spring. Nested springs enable the spring designer to get more loadbearing material into a fixed space. By so doing, the springs are able to support a greater load than one spring alone could withstand. By reducing the working stresses within each nested spring, the probable working life of the springs is increased. Nested springs also enable the designer to reduce the length
Published on 25th Mar '14 20:00
Number of Views: 2518
In mechanical engineering, PoC ("Proof of Concept") is a critical part of the design process. The premise is extremely simple: a part or assembly must perform a function, so a basic physical model is manufactured to prove that it can be done. It’s a quick, small, incomplete model, and depending on customer requirements, it might be created free of charge, or requiring a small payment from the customer. However, in all cases, the PoC doesn’t
Published on 19th Mar '14 14:00
Number of Views: 1188
There are a number of ways flat strip components can be produced, generally depending on the volume required. When a small number of components are required e.g. prototype samples, it is possible to produce most parts without tooling. Wire-eroding can produce development blanks where required, and standard tools can be used to form the parts to the required dimensions. This process is time consuming but allows the customers to have parts without
Published on 2nd Mar '14 13:00
Number of Views: 1280
Where the spring operates in a corrosive environment some form of surface protection is required. Depending on the application, this can take a number of forms. Obviously, the spring can be designed in a material that will not readily corrode in the application’s working environment, but this may not be possible where costs need to be kept down or where the material needs to be of a required strength. Nickel alloys in particular, are excellent for
Published on 1st Mar '14 13:50
Number of Views: 1307
As with wire, there is a wide range of strip materials available to the spring manufacturer. As many parts produced in strip are not primarily used as a spring, many low strength alloys are used, generally for their formability and electrical conductivity.
Strip materials can be obtained in different grades of hardness, and some spring materials are able to be heat treated to increase their strength and hardness.
Published on 25th Feb '14 16:20
Number of Views: 1462
Spring materials are chosen for their strength and are amongst the strongest materials used in industry. Springs are designed to work to far greater working stresses than virtually any another component. Also spring materials have to be able to work in extreme environments such as elevated or low temperatures and corrosive situations and be able to undergo extreme dynamic loading, and shock loading. Spring materials are also utilised for their electrical
Published on 21st Feb '14 00:00
Number of Views: 1642
Reliability is of great importance to many spring users. Without the spring many applications will either cease to work or work less efficiently. Therefore much study has been made of the behaviour of springs under fluctuating loads.
If a spring is operated less than 10,000 cycles during its operating life then it is deemed to be working statically and fatigue does not play a part. Over this, fatigue will affect the performance of the
Published on 11th Jul '12 13:15
Number of Views: 16118
This article helps mechanical engineers understand the selection of ball bearings depending upon the application and load conditions. Primarily the article helps you calculate the minimum and maximum load bearing capacity of bearing and most importantly... life of the bearing as an individual. Here the designation number of the ball bearing helps you know the design, working nature and the physical property of the bearings.