Idhaya – Engineering & Technology Blog, Industrial & Mechanical Engineering Information

Mechanical drawings are among the basic elements used in engineering. These mechanical drawings are also referred to as engineering drawings, which are highly technical visual representations of an object or structure. These drawings may come in the form of blue prints, which are used for conceptualizing buildings, bridges, and skyscrapers. Manufactured items such as refrigerators, televisions, air conditioners, and vacuum cleaners are also built with the use of mechanical drawings.

Manual mechanical drawings

Before the advent of automated systems and computers, mechanical drawings were created manually. These drawings need to be precise because they are supposed to be representations of the specific requirements of the object or structure that will be constructed. When produced manually, these drawings were done with the use of a T-square, drafting table, technical pen, and a set of triangles and squares. Other materials used for creating mechanical drawings include the compass, French curve, and spline. Creating mechanical drawings take up much time, and individuals must have the necessary skills and much patience in order to produce mechanical drawings.

Kinds of mechanical drawings

* Construction drawing – This is a kind of mechanical drawing that is used for clearly defining the requirements for various engineered items. The purpose of this kind of drawing is to capture accurately the geometric features of a component or product.

* Cutaway drawing – Cutaway drawings are technical illustrations that show the internal features of a three-dimensional model without taking for granted the outer context of the product. The aim of this kind of drawing is to let the viewer see the internal aspect of an otherwise solid, opaque structure.

* Patent drawing – Patent drawings are mechanical drawings of patent inventions. These drawings show the nature of the inventions. It’s a must that these drawing show each feature of the invention that is specified in the claims. The patent office usually requires patent drawings to be made on a particular type of paper, with specific margins and other details. It’s also important that these drawings be easily understood by those individuals utilizing the patent descriptions.

Computer-aided design

With the introduction of computer-aided design (CAD), the creation of mechanical drawings is now easier and faster. With the use of CAD, a two-dimension mechanical engineering drawing and a three-dimension model now take a lot less time to do. CAD is a computer technology that is now widely being used not only in the field of engineering, but also in architecture, interior design, automotive, and other industries. The drafting process has undergone a radical and beneficial change since the development of CAD. Aside from making it easier for individuals to create mechanical drawings, CAD also lessened the costs of developing structures and products.

Different CAD software

There has been a wide variety of CAD software released in the market since the advent of computer-aided design. These software include VectorWorks, Coreldraw, AutoCAD, MicroStation, and Adobe Illustrator. These software programs enable individuals to do three-dimensional modeling, electrical and plumbing detailing, architectural detailing, graphic design, format conversion, and mapping.

Combination of manual drawing and CAD

It’s usually easier to manipulate the pen and create drawings manually, but using computer programs is still more convenient. The National Research Council of Canada has devised a way to combine the two. Nowadays, individuals can make use of a system that knows how to recognize basic shapes that are drawn on a separate touch screen and then turn these drawings into three-dimensional models that will be shown on the computer screen. With this advancement, individuals can easily turn their visual concepts into prototypes. Innovations such as this are certainly proving to be a big help to designers doing mechanical drawings.

Mechanical engineering perhaps has the oldest known inventions and patents. In fact, the word ‘engineering’ is derived from a mechanical component. Mechanical engineering is a field that was conceived from natural laws of physics, where one engineers or manipulates these laws to his/her advantage. Mechanical patents non exhaustively and generally encompass utility tools invented constituting force, motion, mass, etc. It specifically encompasses all mechanical devices, contraption and interactions resulting in utilitarian instruments and apparatus, and where such interactions produce a action-reaction component that depends on the mechanism and nature of interaction. Further, all manufacturing processes, for example, metal working and treatment, printing, textile manufacturing, etc, are regarded under mechanical patents. Automobiles fall under mechanical patenting category, although one cannot be sure where a ‘time travel machine’, if invented, will be categorized. Of course, most mechanical engineering fields involve extensive use of computational and mathematical tools, physical laws and equations, but these fall under a different patenting category altogether.

Mechanical inventions have no constraints as they range from a simple yet effective patented invention of a four year old from Texas for “An aid for grasping round knobs” to researched and focused inventions in all areas of mechanical expertise. Few of the well known companies that have a good mechanical patent portfolio include Canon Kabushiki Kaisha with 6798 US patents, General Electric company with 6649 US patents, Xerox Corporation with 2736 US patents and Ford Motor Company, which currently has about 2671 US patents. Some inspiring patented mechanical inventions include legacy devices such as typewriters, Xerox machines to modern inventions such as biomorphic robots, everting heart valves, etc.

The United States Patent and Trademark Office currently specifies 248 major classes for mechanical patents. Each class is given a class definition, and inventions are further categorized into subclasses, where each patent application may be classified under more than one class/subclass. As exemplifications few class definitions are provided here. One class definition encompasses ‘apparatuses that produce compressive force’, another encompasses ‘apparatuses for transferring fluent materials through enclosed structures’, yet another encompasses ‘apparatuses for supplying air to, circulating air in and removing air from enclosed spaces.’

Then there are subclasses defined for each mechanical unit or component of a larger entity. This demonstrates the extent of classification accomplished by the USPTO.

The future of mechanical innovations is considerably bright, not just in the automobile industry but also in sectors like robotics, printing technology, and many more. Mechanics is used to manufacture machines; it is used by the machines, and for enabling the machines. Mechanical innovations gifted us the ease and flexibility of transportation in all forms including inland, air and sea; will aid us in rebuilding the WTC using huge construction equipment and intricate structural frameworks, to relish life with little things like toys, amusement rides, etc.

Mechanical Drafting can be defined as an expressive way to bring an idea through the use of illustrations and drawings that show in feature the process of rotating the idea into realism. This process dates back to thousands of years ago when prehistoric drafters illustrated on the walls of caves the processes by which they hunted, worshipped, lived and died.

Mechanical drafting and design has considerably benefited today’s advanced mechanical and engineering designers. Although. A number of of the generally cited benefits include better accuracy, efficiency along with easy meddling inspection, better layout, tagging and dimensioning.

DraftingSimplified.com provides mechanical product and machine drawings in different views and perspectives, dimensioning, scaling, material listing, detailing, blow up.

Using our mechanical design and mechanical drafting expertise we can also make assembly drawings for all types of mechanical assemblies, architectural schematics, structural designs… and then change them into completely accurate multi-layer drawings.

Our services boast of outstanding quality, greatest rotate times and brilliant customer service. Our cost effective cad solutions for your mechanical drawings aim to go beyond your expectations and are designed to provide return business.

We offer Mechanical Drafting service at affordable costs. We offer online mechanical products and machine drawing service dedicated to quality, correctness and reliability. We are a full service drafting firm providing a full range of architectural, mechanical, civil and structural drafting services.

Our extensive skill with both mechanical and architectural projects, competitive rates and prompt delivery makes us the right choice for all your drafting and design needs.

We can improve your production capabilities by attractive your ideas from the drawing board to realism. We offer Mechanical Drafting and other types of Detail Drafting services necessary for projects.

Mechanical machine drawings include all drawings and comments that have amazing to do in different views and perspectives, dimensioning, scaling, material listing, detailing, blow up. It may also include other drawings that are essential to present the system right in relation to the other portions of the project.

We arrangement in digitalization of all type of technical drawings, plans, architectural, mechanical, engineering, civil, machine drawing, utility plans, site maps, sections, elevations, construction documents, maps etc. By clustering design and project supervision engineers in a closed-loop sequence, you pick the benefits:

>> Well-organized design process managed by a grown-up project team
>> Accelerated delivery during multiple shifts and time sector leveraging
>> Broad range of experience catering to a various international engineering industry
>> Broad choice of industry associates
>> Devoted partners to make sure success, admission to skilled talent pool, at a low price

Drafting Simplified offers its services in converting drawings in any form to editable CAD files. DraftingSimplified.com is one of the first few service providers in the industry to offer drafting services through an automated online logistic system. With a strong technical background and over 250 Man years of CAD conversion experience, DraftingSimplified.com caters to all your drafting needs. With our state of the art online art production management system, we have helped reduce the co-ordination issues among the Architects, civil engineers and drafters.

Students of today are very conscious about the decision of choosing a subject for their higher studies. The selection for which, mainly depends on the score card achieved at senior secondary examinations. Students are always asked to perform well in their 12th board examinations, because these are the exams, which decide the future of the students. The future career fields are very much dependent on these exams. Also, the choice of sciences or medical in the higher studies or at graduation level depends on the fact that what subject one had in his senior secondary examination. In the field of sciences, it is basically divided into medical and non- medical fields. Engineering is a field which corresponds to the non medical field of sciences.

A student wanting to pursue his career in engineering can opt for any of the following engineering types:

v     Chemical engineering

v     Civil engineering

v     Mechanical engineering

v     Electrical engineering

v     Engineering management

v     Geotechnical engineering

v     Engineering sciences

Out of all these engineering types, the most popular and the broadest engineering discipline is Mechanical Engineering. Students who have opted for the career in mechanical engineering are made to deal with the designing and execution part of all the machinery and mechanical tools present in the industry. Students aiming for career in mechanical engineering, need to have, BE/ B Tech degree in their graduation or post graduation in Mechanical Engineering. The graduation course for mechanical engineering is of four years, and in case of polytechnic diploma courses, the duration is of 2-3 years. Students with physics, chemistry, and maths as their subjects in 12th examinations are eligible for opting graduation courses in mechanical engineering.

For selection in mechanical engineering courses, a student needs to have some minimum percentile, which depends on the admission criterion of the colleges and the institutions. All the colleges providing courses for mechanical engineering conducts entrance examinations. Some of the entrance examinations for engineering courses are:

v     All India Engineering Entrance Examination

v     IIT Joint Entrance Exam

v     All India Common Entrance Test

v     Graduate Aptitude Test in Engineering

v     Delhi Combined Entrance Test

v     SRM Engineering Entrance Exam

v     Birla Institute of Technology and Science Examination

v     National Institute of Technology

v     Jawaharlal Nehru University Entrance Examination

v     Engineering Common Entrance Test for Diploma Holders

Some of the duties which a mechanical engineering student has to perform, after pursuing his studies are, designing, constructing, developing, maintaining, producing, installing, functioning and mechanism of large steam engines, internal combustion engines, gas turbines, jet engines, tools of different machinery, etc. Mechanical engineers are also said to be the driving force of the mechanical industry, it’s because of them only, the development and production of all the IT advancements is possible.

All those students aiming for career in mechanical engineering must check themselves on the following points, before applying for admission in these courses:

v     Great designing and drawing skills to draw the structures for machines

v     Should be able to conceptualise the plan with his design and analytical skills

v     Must possess great mathematical solving ability, with match being the most important tool of engineering

v     Should have an inquisitive approach to dig into the depth of matters and solve the problems successfully

v     Should have a sense of organising things and must be able to work with all kinds of people in all types of environment. Should be a team worker, creative and must be able to present his innovative ideas to the world.

Students wanting to pursue, teaching career for mechanical engineering mostly opt for higher or post graduation degrees in this field. Or, if the student aims for managerial positions, then an additional degree in the management would help him in grabbing the opportunities for management levels.

The fundamental objective of any and mechanical engineering project is to build a machine or device that offers benefits to humanity.

A well-known engineer has suggested that the fundamental objective of engineering design as other human activities is to improve the quality of life in our society and that this can be measured by an index of quality of life. The engineers in the past, before giving the proper attention to safety, turned their attention to functional and economic effects of new equipment. After all, if the equipment does not carry out their duties properly, they are of particular interest to the engineer.

Furthermore, if a new device can not be produced at a cost that is sustainable by contemporary society, it is a waste of time continue to study it. But engineers who have come before us have managed to develop a multitude of products that work successfully and that can be produced economically. Partly because of this, a growing engineering effort is being aimed at broader considerations about the influence of engineering products and engineering on humans and the environment. Personal safety is a consideration that the engineers have always been present but that now requires more emphasis. In addition to the awareness of risk, the second main point of the security is the ingenuity. The engineer must be imaginative and clever enough to anticipate situations, related to the product, potentially dangerous and therefore create effective solutions.

Some useful techniques and guides for addressing this challenge, are for example the review of the total product life cycle from initial production to final disposal, with particular attention to research of significant risks. Wondering what kind of situations can reasonably occur during the various stages of production, transportation, storage, installation, use, service, and so on. Be sure that safety conditions are met in a balanced way. Do not accept the penalty of 1,000 lire to eliminate a risk with a simple adjustment, ignoring the possibility of eliminating an equal risk with a cost of 200 lire. Another common way is to make security an integrated aspect of the basic project, wherever possible, rather than “adding” security devices after the key project has been completed. Usually we try to produce a system that is safe in case of breakdowns. In this case, the philosophy is to avoid breakage, but if a rupture occurs, the product is still safe, that is, the break will not be catastrophic. A crucial element is so obviously comply with European regulations, which set the minimum security requirements for each product.

Certainly security is not a concept fixed and stable, we must pay attention to all aspects of the problem and even to imagine any danger. That is how our objects are created each day in an increasingly safe environment for all of us around.

By Martina Meneghetti with support from fresatura di precisione for any information, please visit rettifica meccanica or for more info visit torneria cnc

Mechanical engineering experts are increasingly turning to nature when looking for aircraft mechanical design inspiration.

In an attempt to develop more fuel efficient aircraft in line with environmental compliance, engineers are looking to the natural world to explore new mechanical design techniques which may one day feature on commercial airliners.

By studying the flight of birds and features of other animals, engineers can find new ways to reduce drag and better equip aircraft to adjust to changing weather conditions whilst in the air.

Known as biomimicry, engineers use aspects of the natural world to come up with mechanical design in a variety of modern day designs that affect our everyday lives and the way we travel for example.

Boeing has been following the developments in the biomimicry field so closely that the group has even sent engineering teams to Costa Rica to search for new ideas for mechanical design.

These trips have been organised by the Biomimicry Guild, and co-founder Dayna Baumeister believes that the future of aircraft design will be heavily influenced by designs from nature. She also helps organise workshops in Costa Rica and Peru for engineers coming from companies such as Boeing.

She says: “I’m almost 100% certain that flight as we know it today will not be flight as our children know it.”
David Hills, senior manager of flight physics research at Airbus has admitted that by looking to what the natural world offers around us, the aviation sector can find new ways to develop and design new features for the aircraft of the future.

Speaking to Flight Global he said: “Biomimicry is looking at how you can use Mother Nature as a measure.
“It is looking to the biological system and seeing where you can find guidance and inspiration and solutions that are free from the trappings of civil aeronautical design.”

And now engineers at The Fraunhofer Institute in Germany have come up with a mechanical design technique inspired by shark skin.

By developing a paint based on the structure of the skin, grooves that are similar to aircraft riblets can be applied to the coating of the aircraft.

As the paint contains nanoparticals the aircraft will be in a better position to deal with changing temperatures and conditions during flight.

Yvonne Wilke from the Institute now believes the paint would help the aviation industry save up to 4.48 million tonnes of fuel each year. The product could even be made available for commercial use in the next three to eight years however at present it is still in the development stage.

She said: “There is interest and there are projects on this paint and its application in the aircraft industry and the ship-building sector.

“All of these projects are in the phase of carrying out technical experiments.”
Another aspect of the natural world that may feature in aviation design components is by using fish slime to reduce drag on the aircraft as it travels through the air.

Mechanical Modeling is the creation, manipulation and storage of arithmetical objects to represent objects that are all around us or virtual objects. Today in the mechanical industry 3D modeling is strongly connected with the manufacturing as well as casting process. Outsource your mechanical design and 3D modeling services and you can save your time and money.

It is very not easy to start building a new 3d model or customizing one if you are a newbie in the 3d mechanical industry. You are far better of using 3d modeling services. Use of 3D modeling services is common for advertising firms that make ads for their customer’s health professionals that want to sell their prescriptions to doctors, video productions and architectural designers. They outsource their 3d projects because of the capability to cut down costs and get it done easy and fast. Making 3d models is routinely just too slow and occasionally too pricey compared to the cost of just getting custom 3d models done by experienced 3d modeling artists.

The mechanical design and 3d modeling services are use in every business sector which is related with mechanical industries. In the industrial market with the help of mechanical software 3D modeling services are easy to use and maintain. Flexibility and precision makes these services much more significant in creation of 3D or three-dimensional model of any mechanical product or system.

The mechanical engineers can use 3d model design services during the conceptual stages of mechanical product design. Mechanical design services are able to produce quick prototypes and provide designers with working models of the product in development.

There are so many benefit of using 3D modeling and mechanical design such as interference and clearance in assemblies, Stress-free checking of kinematics, accurate wire frame geometry creation and speedy verification of designs against specifications etc.

Mechanical engineering design is a part of the overall domain of mechanical engineering. Mechanical design has significantly benefited today’s refined mechanical and engineering designers. Although some of the generally cited benefits include improved accuracy, efficiency along with easy interference inspection, better layout, labeling and dimensioning.

Mechanical 3D Modelling offers various types of free 3D models, mechanical design, 3D modeling, 3D animation and products design services. So outsource your mechanical design and 3d modeling related requirements and save your time and money.

Mechanical Engineering is an exciting program for those who are passionate about a lot of things. If you ever wonder how ancient people built civilization with such simple tools and machines and how these machines evolved and became a million times bigger in scale, then mechanical engineering is the program for you. The discipline of mechanical engineering is guided by a lot of sciences and technological studies that continuously grow and diversify to other disciplines.

Imagine the tools used by doctors for surgery or for analysis. Imagine how MRI or How CT-Scan or how any other detection and analyzing tools were made. Imagine how mechanical engineering has provided exceptional tools to merge the fragility of the human body and use magnetic waves and other things you could even imagine to have worked centuries ago.

The field of mechanical engineering is for you if you like to device better products for mass-production. If you like building big things, and analyze the design and other facets of a project, this degree will guide you to get what you want.

Mechanical engineering is for you if you like to see exciting frontiers in transportation be it in land, water or air. The endless possibilities of merging technology to ease the lives of people and help the environment seem daunting but for a mechanical engineer, this only means possibilities.

Mechanical engineering is for you if you like studying math and science. These are the bases and foundations for the coursework in college; you have to have competencies in the fields of algebra, geometry, trigonometry, calculus, biology, chemistry and even physics.  These disciplines will aid you to create a variety of tools and machineries for any fields.

Pushing the boundaries of technology does not only mean in beg terms. In a microscopic level, nanotechnology as a part of mechanical engineering poses a new variety of questions and challenges on how to make these tools work and benefit society.

If you are passionate about these things are constantly curious about how stuff works and how they are made, then mechanical engineering is the best option to fulfill your dreams and get the dream job you want.

The author deals in Fuel transfer pump and subwoofer amplifier