• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Computer-aided Design/Manufacture.

Extracts from this document...


Computer-aided Design/Manufacture Computer-aided design (CAD) or computer-aided design and drafting (CADD), form of automation that helps designers prepare drawings, specifications, parts lists, and other design-related elements using special graphics- and calculations-intensive computer programs. The technology is used for a wide variety of products in such fields as architecture, electronics, and aerospace, naval, and automotive engineering. Although CAD systems originally merely automated drafting, they now usually include three-dimensional modelling and computer-simulated operation of the model. Rather than having to build prototypes and change components to determine the effects of tolerance ranges, engineers can use computers to simulate operation to determine loads and stresses. For example, an automobile manufacturer might use CAD to calculate the wind drag on several new car-body designs without having to build physical models of each one. ...read more.


Computer-aided manufacturing (CAM), a form of automation where computers communicate work instructions directly to the manufacturing machinery. The technology evolved from the numerically controlled machines of the 1950s, which were directed by a set of coded instructions contained in a punched paper tape. Today a single computer can control banks robotic milling machines, lathes, welding machines, and other tools, moving the product from machine to machine as each step in the manufacturing process is completed. Such systems allow easy, fast reprogramming from the computer, permitting quick implementation of design changes. The most advanced systems, which are often integrated with computer aided design systems, can also manage such tasks as parts ordering, scheduling, and tool replacement. ...read more.


* Staff may which increased salaries as their jobs become more specialised and skilled. Advantages of CAM: * Can be operated at low labour volume. * Can be run 24hrs. * Easy to change the production procedure to meet requirements. * Easy to monitor. * Efficient. * Accurate, better quality less wastage. Disadvantages of CAM * Expensive start up costs. * Expensive to replace/repair. * May lead to making a percentage of the workforce redundant causing resentment and fear for jobs- bad working atmosphere. Future of CAD: The possibility of future developments in CAD such as providing clients with architectural drawings on disc, transmitting information to remote locations, video-conferencing, and collecting data. Another possibility is the provision of information like thermal calculations, costing, lighting and acoustical analysis of materials. CAD could, for example, demonstrate for clients the design relationship between product costs and layouts or demonstrate energy efficiency measures. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Design and Technology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Design and Technology essays

  1. ICT in Manufacturing.

    They are also used as security devices inside homes and office blocks, as vehicles in space exploration, as intelligent wheelchairs for disabled people, and as underwater maintenance workers for oilrigs. Hundreds of applications use robots in one form or another.

  2. What are the advantages and disadvantages of Virtual Reality?

    Engineers, NTT, 1989 says: " We believe human interface technologies will play a crucial role in making communications and computer technologies more easy-to-use and effective. We believe we should take a higher view of communication: inter-personal communication that can't be captured".

  1. Light & artificial lighting systems

    is a light shaft, windows or roof light which incorporates glass or an alternative material which is transparent enough to let the light shine though. The amount of light that is received though the building is generally only a small fraction that is shown outside, this is usually down to

  2. It is important that Sarah is blind having access to speech and Braille output ...

    The controller makes it more convenient, as it has a wide range of technologies it affects so it's more mobile, and he can move round more. If it was a big massive thing, or needed loads of wires connecting everything he wouldn't really have much freedom, so it's an advantage that they are all wireless from the remote.

  1. Mind Design

    This is because when AI is incorporated into an operating system or application it often becomes an understated feature, yet many of us are using it daily. The future expectations of AI are still quite hi, but to many much more realistic.

  2. Describe the benefits of technological developments in equipment and facility design in two contrasting ...

    Reebok have recently developed the DMX technology. This is a sole that claims to reduce the stress on the legs and heels when running; it does this by shifting the force of the impact across a wider area on the foot.

  1. The Characteristics and Development of RFID - Radio frequency identification.

    The tags also offer security in that they can be made virtually tamper free. The technology has been too expensive and too limited for widespread mass commercial applications, but as the price of tags, tag readers and the associated equipment continues to fall so a growing number of retailers have

  2. Advantages of CAD against traditonal methods of design.

    if the designed part is used in manufacturing, the company producing the product may purchase the rights to the design or buy the parts when the product is manufactured. 3D virtual modelling is the most commonly used CAD system as it allows the designer to view the product in a

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work