Computer-Aided Engineering (CAE)

What is Computer Aided Engineering (CAE)


The computer-aided engineering (CAE) method mainly uses computers to analyse, design, and manufacture a product, project, and process. CAE relates to elements of CADD in industry. CAE often work as a recognised umbrella discipline that involves a lot of computer-aided technologies that are not limited to CAD,  computer-aided industrial design  (CAID), CNC, CAD/CAM, PDM and CIM, plus the Internet and other technologies that collaborate on various projects. Talking about CAE it often focuses on mechanical design and product development automation.

Its most familiar elements of CAE where simulation and solid modelling, analysis, optimisation and testing of mechanical structures. It adds a system that uses digital prototypes. FEA is a kind of process that is often associated with Computer-Aided engineering.  


Computer-aided design and drafting (CADD) service companies relate to computer-aided technologies that offer revolutionary tools for engineers and drafters during the engineering design process. CADD enhances design efficiency, creativity, and effectiveness in product development. There are a lot of different forms that accept engineering design processes and integration of CADD within the  engineering design process . Get a simplified sample of an engineering design process for a lifting hook.

Computer-Aided Engineering (CAE)

The lifting hook is one best example, and the following information is an introduction to CADD in the engineering design process.

STEP - 1

Step 1 helps to identify the problem along with adding design constraints. It comes with a constraint and a condition adding a specific shape, size, or requirement. It defines a design that satisfies to achieve a successful design. The problem statement describes the requirements and constraints for a forged-steel lift hook that support a 3000-pound load.

STEP - 2

Step 2 offers a sketch of the initial design based on the solution to the problem. The sketch comes with hand-drawn that use CADD as a sketching tool. CADD systems require the creation of a digital sketch as an element of the  CADD process . The hand-drawn sketches come with a common practice that especially comes during early design.

STEP - 3

Step 3 can generate an initial three-dimensional computer-aided design (CAD) solid model according to the hand-drawn sketch. Using  finite element analysis (FEA) software , you can study the model. Here, FEA applies the finite element method (FEM) to solve mathematical equations related to engineering design problems, including structural and thermal issues.

STEP - 4

Step 4 offers structural stress analysis applied to that lifting hook to simulate a real-world lift.

STEP - 5

Step 5 optimise the design to reduce material with improving shape while maintaining a sufficient working strength. Users can perform design optimisation, adding manual calculations and tests and repeated  FEA simulations . It offers an optimised lift hook with CAD solid model.

STEP - 6

Step 6 can re-analyse the model that confirms a solution to the design problem.

STEP - 7

The last step 7 is to use the  CAD solid model  to prepare two-dimensional (2-D) detail drawings and a digital model format supported by computer-aided manufacturing (CAM) software. The manufacturer mainly uses the supplied data to create the forging equipment necessary to produce the lifting hook.


A wide variety of jobs are currently available for qualified  CADD professionals . Note that the kinds of tasks they may allow is always traditional. In addition to this, they create drawings that are responsible for working in some of the following areas, including:

  • To prepare freehand sketches on the shop floor and convert the sketch with finished CADD drawing.
  • To include Digital image creation and editing.
  • To provide text documents, including proposals, reports, and studies.
  • To incorporate CADD images and drawings into text documents.
  • To conduct research for job proposals, purchasing specifications and feasibility studies.
  • To evaluate and test new software with ease.
  • To train the staff members by using new software or procedures.
  • To collect vendor product information for new projects.
  • To speak on the phone and deal personally with clients, vendors, contractors, and engineers.
  • To check design and drawings by creating accuracy.
  • To research computer equipment and prepare bid specifications for purchase.

We often hire employees who possess good tech skills to become good employees. The best jobs that we can find here are those students who developed an excellent understanding of the project planning process and can easily handle any situation.

The process is based on the person’s ability to communicate. It helps to apply solid math skills through trigonometry with exhibiting good problem-solving skills. We know how to use resources and conduct research by getting all data. We can serve general qualifications foundation by adding more specific skills to our study. It includes good working knowledge of drawing layout and construction techniques. Based on applicable standards, it adds a good grasp of CADD software mainly used for creating models and drawings.

In addition, we support you in customising the  CADD software  that better suits your needs. What is most essential for the prospective drafter to remember. Content applies to the lot of details of an object, situation and procedure. If we are given enough time, then we can find all of the pieces of information required to complete a task.

Here the process refers to a method of doing something. It involves several steps that come with learning a helpful process and making it easier to complete all tasks. We can find all of the content you require and understand an exemplary problem-solving method. It comes with project planning and is used in any situation. We can use the process to make the task easier and determine what content would be beneficial.

There are many more reasons that we strongly recommend you focus on your efforts. We learn and establish good problem-solving habits. Using the skills to locate the content, all we need for any project is to make all aspects of your life productive, efficient, and relaxing. We at Australian Design & Drafting Services company are ready to offer excellent CAD Design and Drafting services.  Contact Us  to give wings to your project.

What is Engineering Prototyping

What is Engineering Prototyping


A prototype is a functional part model of design; it is used as the basis for continuing the production of the final part or assembly. The terms prototype and model are often used interchangeably. Prototypes are used to determine if a new design works as intended. A prototype is commonly used as part of the product design process to enable engineers and designers to explore design alternatives, determine unknown characteristics in the design, finalize part tolerances, confirm customer interest in the design, verify design performance, coordinate with marketing and sales, and test theories before starting full production of a new product.
A variety of processes can be used to create a prototype. The processes range from creating a digital model to developing a solid physical model of a part directly from a 3-D CAD model data and to fabricating a model using standard manufacturing processes. A company generally contracts with another company that specializes in developing prototypes quickly and accurately. Some companies have their own prototype development departments. A prototype is generally different from the final production part because special processes and materials are used to quickly create a part that can be used to simulate the actual part.
The development phase of the design process is when a fully functioning prototype model is made that operates at the desired quality level. A physical prototype can be machined, molded, or created using rapid prototyping processes. Parts are assembled into the desired product and then tested to determine if the design meets specifi c product requirements such as weight and performance. The design might have to return to the concept phase for reevaluation if some aspects of the design do not perform as intended or manufacturing process appears to be too costly. After the functioning prototype has been built and tested, drawings are created for continuing to full production of the product.


digital prototyping model

A digital prototype is a computer-generated model or original design that has not been released for production. The most common and useful digital prototype is a 3-D solid model. A solid model digital prototype functions much like a physical prototype, is often just as or even more accurate, and can be subjected to real-world analysis and simulation. Digital prototyping is the method of using CAD to help solve engineering design problems and provide digital models for project requirements. Successful digital prototyping offers several ben-efi ts to the engineering design process. It provides companies with a deeper understanding of product function, enables the simulation of product performance as part of a complete system, offers interactive and automatic design optimization based on requirements, and assists other areas of product development and coordination.
Digital prototyping can support all members of a product development team and help communication. Designers, engineers, and manufacturers use digital prototyping to explore ideas and optimize and validate designs quickly. Salespeople and marketers use digital prototyping to demonstrate and describe products. Depending on product requirements and company practices, digital prototyping can reduce or eliminate the need for physical prototypes, which are often expensive and time-consuming to create and test. The figure shows an example of digital prototyping to model, analyze, simulate, and visualize products in a virtual environment.



rapid prototyping model

Rapid prototyping is a manufacturing process by which a solid physical model of a part is made directly from 3-D CAD model data without any special tooling. An RP model is a physical 3-D model that can be created far more quickly than by using standard manufacturing processes. Examples of RP are stereolithography (SLA) and fused deposition modeling (FDM), or 3-D printing.
Three-dimensional CAD software such as AutoCAD, Autodesk Inventor, NX, Pro/Engineer, and SolidWorks allows you to export an RP fi le from a solid model in the form of a .stl file. A computer using postprocessing software slices the 3-D CAD data into .005–.013 in. thick cross-sectional planes. Each slice or layer is composed of closely spaced lines resembling a honeycomb. The slice is shaped like the cross-section of the part. The cross-sections are sent from the computer to the rapid prototyping machine, which builds the part one layer at a time.
The SLA and FDM processes are similar, using a machine with a vat that contains a photosensitive liquid epoxy plastic and a flat platform or starting base resting just below the surface of the liquid as shown in Figure. A laser-controlled with bi-directional motors is positioned above the vat and perpendicular to the surface of the polymer. The first layer is bonded to the platform by the heat of a thin laser beam that traces the lines of the layer onto the surface of the liquid polymer. When the first layer is completed, the platform has lowered the thickness of one layer. Additional layers are bonded on top of the first in the same manner, according to the shape of their respective cross-sections. This process is repeated until the prototype part is complete.
Another type of rapid prototyping called solid object 3-D printing uses an approach similar to inkjet printing. During the build process, a print head with a model and support print tip create the model by dispensing a thermoplastic material in layers.

The printer can be networked to any CAD workstation and operates with the push of a few buttons as shown in Figure.
Rapid prototyping has revolutionized product design and manufacture. The development of physical models can be accomplished in significantly less time when compared to traditional machining processes. Changes to a part can be made on the 3-D CAD model and then sent to the RP equipment for quick reproduction. Engineers can use these models for design verification, sales presentations, investment casting, tooling, and other manufacturing functions. In addition, medical imaging, CAD, and RP have made it possible to quickly develop medical models such as replacement teeth and for medical research.


rapid injection molding prototyping by rapid injection molding rapid injection molding protoryping

Rapid injection molding is an automated process of designing and manufacturing molds based on customer-supplied 3-D CAD part models. Because of this automation, lead time for the initial parts is cut to one-third of conventional methods. Cost-saving varies with the number of parts being produced, but rapid injection molding can also have a substantial cost advantage in runs of up to thousands of parts. Rapid injection molding produces quality molds using advanced aluminium alloys and precise, high-speed CNC machining. Parts can be molded in almost any engineering-grade resin. The figure shows the 3-D CAD part model, the injection molded part in the mold, and the resulting rapid injection molded part.


Subtractive Rapid Pr ototyping

Subtractive Rapid

 Rapid Prototyping Subtractive

CNC machining of parts has been around for decades, but the use has typically not been applied to short lead-time prototype development. Subtractive rapid prototyping uses proprietary software running on large-scale computers to translate a 3-D CAD design into instructions for high-speed CNC milling equipment. The result is the manufacturing of small quantities of functional parts very fast, typically within one to three business days. A variety of materials, including plastics and metal, can be used with sub-tractive rapid prototyping. The figure shows the 3-D CAD part model, the CNC machining process, and the machined part.


Some companies have a machine shop combined with the research-and-development (R&D) department. The purpose of the machine shop is to create prototypes for engineering designs. Drafters generally work with engineers and highly skilled machinists to create design drawings that are provided to the machine shop for the prototype machining. This practice generally takes longer than the previously described practices, but the resulting parts can be used to assemble a working prototype of the product for testing.

Australian Design & Drafting Services provide excellent service for CAD Design and  Drafting.  Contact Us  for more info

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