Mechanical design Archives | �ۿ۴�ý

Linking Radiography Test, Joint Efficiency and Weld Joint Category per ASME Sec VIII Div. 1

�ۿ۴�ý — Mon, 08 May 2017 07:33:39 +0000

Let us start out by briefly explaining of these terms:

Radiography test is a nondestructive testing method of inspecting some hidden cracks in the material by using radio to penetrate through the materials. The purpose is to ensure the structural integrity of the weld joint. As per ASME, there are four types of Radiography test (RT), i.e. RT1, RT2, RT3 and RT4.

Joint efficiency is the number used to define welded joint strength which basically depends on the RT type. This Joint efficiency plays a vital role in determining the thickness of the in Mechanical calculation. For RT1 and RT2 joint efficiency is 1.0, for RT3 efficiency is 0.85 and for RT4 efficiency is 0.70.

The Weld Joint Category is how each weld on a Pressure Vessel Engineering is classified to a Joint category, based on the criticality. As per ASME there are four types of weld joint categories, Category A, Category B, Category C, and Category D.

Now we can see how these three are interlinked as per ASME Sec VIII Div.1

As per ASME Sec VIII Div.1 the RT type 1 or 2 or 3 or 4 will be selected based on the type of weld joint category A or B or C or D. In turn the type of RT 1 or 2 or 3 or 4 will decide the Joint efficiency value 1.0 or 0.85 or 0.7. So this is how the , Joint efficiency and Weld Joint category are interlinked as per ASME Sec VIII Div.1.

To give an example, we have detailed the RT type with Joint efficiency based on weld category.

Category A and D butt welds shall be fully radiography (RT1) hence the Joint efficiency is 1.0.

Category B and C butt welds shall be spot radiography (RT3) hence the joint efficiency is 0.85.

This is because longitudinal joints are more critical than circumferential joints.

In general, heads connecting with shell will fall on Category B (RT-3 Spot Radiography), however in case of hemispherical head, the head with shell joint will fall on Category A (RT-2 full radiography), because this joint is more critical or it will be under double stress.

To help you better understand the ASME weld joint category, we have taken a snap from ASME sec VIII Div.1 which shows the type of Joint category as shown below,

If you like to go for Pressure Vessel Design…

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�ۿ۴�ý Wins Product Design Engineering Project From a Global Technology Solution Provider

�ۿ۴�ý — Tue, 06 Dec 2016 04:20:18 +0000

�ۿ۴�ý, a global provider of design engineering and master data management services, has won a Product Design engineering project from a technology leader in the field of land development and mining.

The Client specializes in technology product for land surveillance, field data collection and machine control for customers in domains such as civil engineering, accident investigation, agriculture, construction and mining. The Client operates worldwide and provides comprehensive technology solutions.

The Client required an engineering partner who could assist them in enhancing their market leading product.The product, which is a surveying equipment required conceptual designing as it had to be enhanced from styling and packaging aspects. In accordance with the market need, the Client clearly outlined to �ۿ۴�ý team, their requirement.The need was well evaluated by the team and the sample designs provided captivated the Client’s attention, thereby resulting in project acquisition for �ۿ۴�ý.

“�ۿ۴�ý’s extensive experience in delivering comprehensive product engineering solutions helped us win the project. Our proposal stood out from the rest of competition as it included product specification, DFMA, mounting, prototype drawings, DFMEA, DFMA, GD&T, CTQs, Industrial design and styling concepts, concept review, manufacturing / sourcing / logistics plan, Risk analysis, Final product specification, component cost quotes and system interface designs with Electronics.In addition, we follow industry best practices and certified quality processes that ensure reliable and consistent output. We are hopeful that the redesigned product will enhance the flagship brand’s credibility in the market”, said �ۿ۴�ý’s Head of Engineering.

About �ۿ۴�ý Engineering LLP

�ۿ۴�ý Engineering LLP (enventure.com) is a privately-held, ISO 9001:2008 certified engineering and data management solutions company, with full-fledged engineering service delivery center in India. �ۿ۴�ý has been serving clients in North America and Europe since 1997 and is today a preferred supplier of engineering services to Fortune 500 companies, across different industry verticals such as Hi-tech electronics, Medical device manufacturers, Oil & Gas, Automotive and Heavy machinery. �ۿ۴�ý provides a wide variety of services to its clients, in areas such as PCB Design, Plant Design Engineering, Piping Engineering, Mechanical product design, CAD, CAM, CAE, Technical Documentation, Master Data Management, Component Engineering, and Regulatory Compliance Support.

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Outsource To Outdo Your Competitors

�ۿ۴�ý — Thu, 05 Jul 2012 06:06:14 +0000

Outsource your mechanical designs and save a staggering amount of money! Outsourcing mechanical designing works is an amazingly cost-effective way to get high quality mechanical designs and CAD drawings with matchless perfectness, along with quality mechanical design solutions from experienced CAD professionals out there. Reputed mechanical design providers in India and other countries provide bespoke mechanical engineering designs for product development, with flawless quality, accuracy, and dependability, using high-end and user-friendly AutoCAD drawing and editing tools.

Nowadays, mechanical designing processes are often outsourced to highly reputed companies with experienced CAD professionals. Particularly, Indian CAD professionals are accepted all over the world, for being more proficient than CAD professionals in other countries. Due to this reason, many developed countries like USA and UK outsource their mechanical CAD drawings and other engineering design works to Indian professionals.

AutoCAD designing is very essential for electrical designs, mechanical designs, product designs, and various other engineering designs. By using the latest innovations in AutoCAD technology, Indian companies can provide comprehensive, accurate, and quality mechanical designs, along with various other benefits like reduced risk, flexible labour cost, added quality and innovation, and on-time delivery.

Mechanical designing is one among the processes involved in product manufacturing. Outsourcing such processes will help companies & organizations save a lot of time, so that they can focus more on the other vital aspects of product manufacturing. With the help of advanced software products, experienced CAD professionals will be able to create better and faultless designs with less time and optimum accuracy.

Risk sharing is one of the main advantages of outsourcing mechanical designs. Outsourcing your mechanical designing will help you share certain amount of responsibilities with the outsourced company. Outsourcing mechanical designs also eludes the need to hire in-house mechanical designers and CAD professionals, thereby reducing recruitment and operational costs to a great extent. These are some of the prime advantages of mechanical design services outsourcing.

Need any services in mechanical designing? Drop us a line and we will get back to you as soon as possible!

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Mechanical Design Services Gaining Momentum

�ۿ۴�ý — Fri, 21 Oct 2011 09:49:10 +0000

Before manufacturing a mechanical product, it is important to design a model of the same and check. The mechanical design services help to do the process. The designers carry out the designing process in two steps. A conceptual design is made at first which gives a brief idea about the project. After the necessary modifications or improvements, a detailed design is made which gives the exact view of how the final product will look like. Mostly CAD drawing is accepted in the industry, since they give a much vivid idea about the measurements and view from all angles. Moreover, they provide 2D to 3D conversion and paper to CAD conversion options. Analysis of the design and engineering of a product is also possible through techniques like thermal analysis. It refers to analyzing the behaviour of a product and its components with respect to the change in the temperature conditions. It is important especially in case of electronic and automotive equipments which dissipate heat. They are mostly vulnerable to heat fluctuations. The mechanical design services help to check such issues and design products accordingly. The process checks the behaviour of certain physical properties, such as the enthalpy and mass, with the change in temperature conditions. CAD migration and CAD translation are also two of the important technologies used today, to evaluate the design and engineering of a product thoroughly. These services help to an extent, to avoid complications and waste of time in modifying the product after the manufacture. It can be done in the design phase itself. Owing to the relevance and necessity of the mechanical design services in many industries, the demand for mechanical designers is on the rise. More opportunities in the field are available for creative professionals to explore.

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How Value Engineering Services can Profit your Business

�ۿ۴�ý — Wed, 22 Jun 2011 09:27:31 +0000

Value Engineering, or VE, is a systematic and procedural process which can be applied to any system design. In principle it means: “Maximum worth at minimum cost.” Value engineering goes hand-in-hand with good BOM management, and has a variety of alternative names: value management, value analysis and value planning to name a few. In electrical and mechanical design, it involves looking for alternatives to the suggested components or production methods, to add value to the design without affecting performance or product life cycle. The core of value analysis lies in a carefully crafted and well tested job plan, focused on creating a high quality product at optimal cost. Value engineering is generally a team-driven effort (although engineers working alone can also reap the benefits), with generally an eight stage job plan. The phases are: selection, information, creativity, analysis, development, presentation, implementation and verification. An eight-stage value engineering management plan ensures a methodical approach, in which only those concepts with the highest potential for a high value outcome are used. Although the system is designed to overcome human limitations and avoid errors, it’s essential all team members work together, coming to agreed decisions at each stage of the plan before moving on. Many companies prefer to outsource their VEM to us at �ۿ۴�ý Technologies. We work with specialized, experienced cost reduction consultants to offer value engineering services customized to your needs. The results will be seen in increased profit margins and competitively priced, quality assured products which will appeal to your customers and place you ahead of the competition.

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Fatigue analysis – a visual topic for discussion

�ۿ۴�ý — Wed, 08 Jun 2011 15:15:33 +0000

There is some excellent fatigue analysis system software available today. Go online, and you will find fatigue calculators that compute stress concentration, crack growth, safety factors, multiaxial states of stress and many other parameters. However, such software can be limited in the way the results are presented, and how you have to enter data. For example, if you “re-tweak” a mechanical design, you may have to resubmit data even if it hasn’t altered. Such programs often feel outdated, with results displayed graphically or as results tables, with nothing to visually link them to the CAD drawings they support. However, in recent years a new generation of fatigue analysis (FA) software has come on the market, which uses CAD visualization and even engineering animation tools, integrating with existing 3D modeling and CAD drafting software to display potential areas of failure directly your design. SolidWorks, ABACUS and Autodesk are just three of the major software companies offering integrated visualization services for engineering analysis. They include finite element analysis (FEA), computational fluid dynamics (CFD), thermal analysis and kinetic computation tools, as well as fatigue analysis software. The software is constantly being refined and updated, working seamlessly within the CAD drafting and 3D modelling environment. Tools like these have been a staple part of mechanical CAD in the aerospace and aviation industries for years. They are also at the forefront of automotive design. In consumer goods, they are used to analyze the design of everything from lawn mowers to radio controlled models. We at �ۿ۴�ý Technologies offer an extensive range of mechanical design and visualization services, including solutions for CFD and fatigue/thermal analysis.

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Are you getting the manufacturing support you need to change direction?

�ۿ۴�ý — Mon, 16 May 2011 09:39:39 +0000

When an SME (small to medium enterprise) decides to “go big” with a new product, the potential profits can be enormous. However, so can the costs. Your new DSP or mechanical design may be the best thing since the invention of the bread-slicing machine, but without a tight grip on things like environmental compliance management and vendor identification, it could be doomed to failure. If you are used to system development on a small scale, you may need the help of a company specializing in cost-reduction services or manufacturing support. Producing engineering BOMs for one-off commissions and small batch production is very different to manufacturing in bulk, where every penny counts. Consider, say, an aeronautical research company with an occasional DSP programming commission they want you to take care of. If extra expenses creep in, they’re taken care of in the invoice. Data cleaning and obsolescence management tend to get overlooked, when customers are willing to pay whatever it costs for you to do the job properly. However, when you come up with a ground-breaking design patented for mass production, the rules are very different. If consumers feel they’re not getting excellent value for money, they will go elsewhere. However unique your concept is, the moment it is on the market others will be copying it. You can’t offset rising production costs with rising prices at the vendor’s end. We at �ۿ۴�ý Technologies offer manufacturing support for companies of all sizes. We can help with manufacturing BOM’s, MRO maintenance, data cleansing, WEEE legislation and much more.

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The cost of MRO maintenance for aging hardware systems

�ۿ۴�ý — Sat, 14 May 2011 09:28:46 +0000

Where hardware systems have long product lifecycles, MRO maintenance can be a challenge. Staff used to performing familiar tasks may find themselves having to do them in a new way. Modern IT systems may not support archived data, meaning lengthy MRO data cleansing and conversion of files. RoHS and REACH regulations may have rendered some components obsolete, etc etc. The US aeronautical industry is a good example of how costly MRO maintenance can be. Aging aircraft are expensive to maintain, but even more costly to adapt for modern needs, such as wireless connectivity and mechanised ramps. The way financially-stretched domestic airlines tackle MRO maintenance is generally two-fold: they carry on struggling with aging legacy systems, but add “bolt-on” point-solution software and firmware. In this way an aging mechanical design can encompass modern functions like mechanical wireless access and engine diagnostics. Two terms crop up a lot in enterprise data management: BOB, or Best-of-Breed, and FIS, or Fully Integrated Software. BOB system software is specific to a particular application or task, whereas FIS software comes as a package of integrated modules which cover a range of functions, and automatically link several databases. Small carriers often use Best-of-Breed providers to reduce costs. Some providers have become popular with larger airlines too, with one company developing wireless technology which integrates with Smartphones, and which is being installed by companies like Virgin. Installation is preceded by MRO data cleansing and data migration, made easier by the fact there were interfaces for the most common operating systems. If you need help with MRO maintenance or data migration, we at �ۿ۴�ý Technologies offer an extensive range of data cleansing solutions.

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Tips on using mechanical CAD visualization effectively

�ۿ۴�ý — Sun, 08 May 2011 08:41:02 +0000

Today, mechanical design engineers have access to a wide range of sophisticated products, enabling creative and useful effects, such as CAD animation and 3D max rendering to be applied to both new and archived designs. The one downside is that the more creative a product is, the more of an artist you have to be to use it. Photorealistic rendering sits uncomfortably with engineers who are unfamiliar with lighting, surface reflection and other aspects of photorealism. Once the image starts moving, there’s even more to think about. Even with static images, one of the biggest problems for novices is creating realistic lighting effects. What you should remember is that mechanical CAD software is designed for engineers, not movie makers and artists. Image based lighting (IBL), for example, takes away the uncertainty of virtual light positioning. IBL utilizes pre-lit HDR (high-dynamic range) background images, and wraps them around the CAD model. However, the result can still look wrong if you don’t also consider things like shading and reflection distortion. To look realistic, a design must have believable texture and light-reflectance. This can be complicated where multiple materials, such as glass, metal and plastic, are involved. To overcome this, 3D render software often incorporates a Render Appearance Library, which allows engineers to choose the right surface properties for their CAD designs. If you don’t feel photorealistic graphics is your strong point, come to us at �ۿ۴�ý Technologies. We are experts in the field of CAD animation and 3D max rendering, and can create photorealistic imaging which Spielberg himself would be proud of.

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Making your Mechanical Design Ideas a Reality

�ۿ۴�ý — Fri, 04 Mar 2011 11:09:08 +0000

CAD drafting other people’s ideas is all very well, but in mechanical engineering, the real profits come from patenting your successful designs. Today, numerous mechanical CAD design packages take your product ideas from initial concepts to fully manufactured reality – but the hard work begins before you ever upload your CAD drafting software. Having thoroughly researched your design to see if it is practically and economically viable, you then need to do a patent search. The best option is to get a professional patent attorney to do this for you – that way, you can be certain your patent isn’t violating any already in existence. Provided the design is patentable, you can apply for a provisional patent. The date of invention and other details will be recorded at the United States Patent and Trademark Office (USPTO); this protects your invention for one year from the date it is filed. After that, it becomes available to the public. A provisional patent doesn’t have to be too in-depth; it just needs to explain what your product is, how it works and how it is constructed, with a few technical sketches for clarity. Next comes the Alpha prototype, or Proof of Concept Design. This is the model you build to show the design is feasible and will function as conceptualized. Depending on the complexity, this can range from a simple cardboard mock-up to 3D modelling using advanced mechanical CAD design tools and digitally machined parts but does not require aesthetic elements. The Beta prototype is the final stage, realizing the design in full. We at �ۿ۴�ý Technologies offer a full range of mechanical engineering services, from CAD drafting to building prototypes.

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