Essential Mechanical Characteristics Of Engineering Materials

The characteristics of a product manufactured are largely determined by the engineering properties of the material used. Therefore, the engineering properties should be thoroughly analyzed before the finalization of the material selection

Importance of Engineering Materials

Different engineering materials can be used for the manufacture of various products, and the selection of the engineering material depends upon their mechanical properties, the type of product, functions desired, quantities to be manufactured and numerous other engineering factors. Therefore, all these factors must be considered in the design of a product, since the quality and characteristics of the final product manufactured will be affected by these factors.

What Are Mechanical Properties

Mechanical properties forecast the behavior of particular materials when subjected to specific loads, under certain conditions. The mechanical properties are determined by the performance of test and procedures, utilizing test equipment in a laboratory. The important mechanical properties that should be considered in the manufacture of engineering products are mentioned below:

Yield Strength

The yield strength of a body is the stress at which plastic deformation of the material starts. Before reaching the yield point, elastic deformation will occur, and the material will be restored to its earlier shape on the removal of the stress. After crossing the yield point, certain deformation will be perpetual and cannot be reversed. The information concerning the yield point is essential in the design of a component because it signifies the maximum load limit, and any further increase may cause failure of the component. The property of yield strength is essentially used in the manufacture processes, such as forging and rolling.

Tensile Strength

The tensile strength of a material indicates the likely behavior of the material when subjected to tensile loads and is utilized in the determination of other important engineering properties such as elongation, yield strength, and elasticity. The tensile strength of a material is determined by the loading of a specimen, and measurements of the load and the elongation of the specimen.

Ultimate Tensile Strength

The ultimate tensile strength of a substance is the greatest stress that it can withstand, and it indicates the amount of stress at the breaking point of a material, after which the material may fail, or the structural strength of the material may not be maintained.

Other Properties

Other engineering properties that should be considered in the selection of a material are ductility, resilience, hardness  and plastic deformation.

Modern Forging Trends: Seamless Die Forging, Die Forging

Forging iron has been quite distressful in earlier times and was not inevitable since there was no way out not forging it. This is because in our daily lives we use many things which requires forging like automobiles, locks, keys and various other things which contain any metallic element in them. This is why technicians have come with new, specialized and much more convenient forging tools and forging machines which facilitate millions. It is through ages the lust of man to carve the raw metal into the shape of his dreams has transformed through evolution into the modern shape, which is very much evident to the mankind in the current era. Forging has therefore been at the service of mankind since long.

Die Forging

Of all the forging techniques ,die forging is the most common. Earlier this technique was used by blacksmiths however with the latest innovations in this area forging dies are used elsewhere at more complicated metals. This forging technique has the ability to produce exact 3-D images of the specimen given through a special process. Forging dies are used to forge aluminum, steel, titanium and much more harder metals. In this technique the impressions or images are placed on two or more specimen forging metal plates. Then these specimen metals are put over the piles of metals on which the image has to copied on. The forging dies fibers work by blocking the flow of electrons in a metal and this blockage of electrons is used to mould the metal in any required shape.

Seamless Roll Forging

Seamless roll ring forging is also one of the quite highlighted and popular forging techniques. This technique is used to mould harder metals in a much easier and quicker way. A huge hole is made in the center of a metal which is to be forged and then that hole is elongated to form a ring. The measurements of the ring can differ. This ring is then further manipulated to form shapes and images from a specimen. Seamless roll ring forging is used in the processing of aerospace, off highway equipment, mining etc and mechanics claim that there is no replacement for this technique.

These modern forging techniques have lent a great amount of ease and convenience to the forging industry which is why it is achieving heights of success lately.

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Reasons for Construction Failures

We read a lot in papers that fully constructed buildings and towers fall, resulting in innumerable deaths. There are various reasons for construction failures, which include the following.

Employment of Unprofessional Workers

Usually, the workers who are involved in a construction project are hired on contractual basis. Since they are not permanent employees they are not granted enough time to work well and to screen their work. Sometimes people who have never been involved in a construction project are enrolled in the work. There is not much guidance given to them in areas of mixing and cement application and doing other construction work. It is assumed that workers are quite aware of their job requirements. As it is not a white collar job thus there is nothing like interview sessions.

Inadequate Material Standards

As mentioned earlier, construction projects are on contractual basis so low cost materials are bought to save in financial terms. It is obvious that cement is the most important component in the construction process. Low quality cement is cheap but it causes a huge decline in the standard of the constructed building. The time for wear and tear is reduced and the building texture becomes more vulnerable to factors like dust and train. As a result the outside texture of constructed building stats to erode at a very quick rate and with the passage of time, the overall structure becomes weaker and weaker. Hence ultimately the building falls resulting in irrecoverable human loss.

Hasty Efforts

Some construction companies stress on the quantity factor in stead of the quality. They have multiple projects at a time. Their goal is to finish the maximum number of projects to maximize their monetary belongings. As a result they are careless in areas like product quality and process monitoring. A construction project deals with the lives of various people who reside in these buildings for years and years. Hence a construction company should work sincerely and with a dedicated approach to serve these people.

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Latest Forging Techniques

What is Forging?

The first idea that comes to our minds when we hear the words 'forging' is something illegal. However in the recent times forgery and forging have become commonplace phenomena. This is because metal and steel have invaded our lives. Such instruments are products of forging which is done by the manufacturer.  Earlier when science and technology did not excel as much as it has now the traditional methods used for forging were used which were quite strenuous than the latest forging method.

New Forging Techniques and Tools

In the modern world with the advancement in technology and mechanics new and convenient forging tools and specialized forging machines have come into the use. Technicians have come up with various techniques of forging iron while some have come up with unique and effective stainless steel forging techniques which are being successfully employed throughout the world.

Cold and Open Forging

Among all renowned techniques of forging cold forging and open forging stay on the top of the list. Open forging is one of the traditional ways of forging which has been used since ages and has been satisfying people with its results. In this technique the metal you are to forge is brought near and optimum temperature where it is soft enough to work and take a new shape which is decided by the manufacturer. This optimum temperature may differ for different metals according to their valency and general make up. After the optimum temperature is attained the manufacturer shall employ some physical strength and use a hammer or any other forging tools exactly on the metals' anvil and shape it according to his will and requirement. This technique (as the process itself suggests) is quite physically fatiguing yet gives complete control to the manufacturer to shape the metal in to what ever size and shape he wants.

Drop Forging

Drop forging is also a traditional and mechanical way of forging iron and other metals. This technique has been widely employed by blacksmiths for putting metal into any die. Drop forging also requires the use of a hammer or any other new forging tools in order to shape the metal in a desirable way. usually this technique is used to insert excess metal in an object and is a common way of treating and making components of automobiles.

Forging since has become a daily life practice and need you shall get to find its various ways which add convenience to your business. Earlier forging iron was a great issue but now due to developments the once laborious job has become an easy and executive one.

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