Skip to content

Cad Cam Essay

About Cad Cam

  • Length: 621 words (1.8 double-spaced pages)
  • Rating: Excellent
Open Document

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - More ↓
About Cad Cam

Cadstands for computer aided design. It is used in replace for a
drawing board etc. because it is much more accurate and reliable. Cad
involves using a computer and appropriate software .You can use a
mouse to design it but it isn't very accurate so they usually type in
the commands or use a tablet pc.

[IMAGE]

Cad allows very accurate and precise drawings to be achieved quickly
and easily and it is very easy to make alterations to you project your
designs can be stored on disks so you can take your work anywhere you
go

Cam stands for computer aided manufacture. Cad and Cam are mostly used
together. Because cad designs the project and cam cuts it out. This is
good because it means you can mass-produce things e.g. for
architectural, engineering, electronics, roadways, and woven fabrics.
This saves a lot of money and time in the long run, which is a key
essential for a business



Examples
========

· A good example of cad and cam is in the food market where they need
to design complicated nets and put a design on it and then cam can cut
out thousands and even millions of copy's

· Also something like digital cameras they can mass-produce all the
little parts in it, and using cad will make sure they will all fit
together perfectly.

· Also designing something for resistant materials. It takes much less
time and produces a perfect piece of work.


Before cad cam
--------------

Before there was cad cam people just use to use ordinary tools like
pens, pencils and paper etc. this would take a lot of time and effort
and would even cost more in the long run .If you ever made a mistake
you would have to use a rubber to rub it out or even start againWell
before the development of Computer-aided Design the manufacturing
world adopted tools controlled by numbers and letters to fill the need

How to Cite this Page

MLA Citation:
"About Cad Cam." 123HelpMe.com. 11 Mar 2018
    <http://www.123HelpMe.com/view.asp?id=123104>.

LengthColor Rating 
Computer Aided Design: CAD/CAM Systems Essay - ... In previous days it was done with the help of multiple processors but now it is been carried out by the software, we can simultaneously work on the new drawing while the system generates tool path for the old one (Anon., 2009). Computer Aided Process Planning: It is planning of a process with the aid of the computer. Process planning in manufacturing is nothing but the formation of the route sheets and organizing the sequence of operations and allotting the work centers for particular operation to produce products....   [tags: manufacturing tooling and dies, software]
:: 14 Works Cited
889 words
(2.5 pages)
Better Essays[preview]
About Cad Cam Essays - About Cad Cam Cadstands for computer aided design. It is used in replace for a drawing board etc. because it is much more accurate and reliable. Cad involves using a computer and appropriate software .You can use a mouse to design it but it isn't very accurate so they usually type in the commands or use a tablet pc. [IMAGE] Cad allows very accurate and precise drawings to be achieved quickly and easily and it is very easy to make alterations to you project your designs can be stored on disks so you can take your work anywhere you go Cam stands for computer aided manufacture....   [tags: Papers]621 words
(1.8 pages)
Strong Essays[preview]
Creo Parametric Software: The Creation of Complex CAD Models Essay - Creo Parametric is design software created by Parametric Technology Corporation enabling the creation of complex CAD models. Released in 2012, Creo Parametric 2.0 connects the newest technologies allowing to create 3D models adapted to the both commercial and personal needs. In addition, software allows created models to be presented in many different ways starting with shaded and rendered images as well as more complicated technical drawings and exploded views. What is more, the product of Parametric Technology Corporation is adjusted to create models in many different formats such as 3D CAD, CAID, CAM, and CAE, which enable not only to draw the objects themselves, but also to test their du...   [tags: 3D, sparkplug, engine, design]843 words
(2.4 pages)
Strong Essays[preview]
Complementary and Alternative Medicine Essay - It is impossible to deny the fact that living creatures in general and human beings in particular have an extraordinary ability to heal their wounds in the shortest amount of time. In other words, the overall system of a person naturally promotes self-cleansing, self-repair, and accordingly, self-healing. Scientists have been proving that paying attention to the nine fundamental systems in the body including circulation, digestion, respiration, intestine, urine, gland, neuron, structure, and immune, plays a key role in enhancing this healing process (Balcu 209)....   [tags: CAM]
:: 48 Works Cited
3000 words
(8.6 pages)
Term Papers[preview]
Conventional Medical and CAM Treatments Essay - In the Webster’s Dictionary it is stated that conventional medicine includes treatments that are chemically produced in labs specifically for curing those with diseases and is offered to patients by most, if not all, hospitals. Conventional treatments can include; chemical medications, radiation therapies, and surgeries. CAM stands for Complementary and alternative medicine, it includes treatments for illnesses that are naturally produced. CAM treatment can include; herbal medications, acupuncture, therapies, and relaxation techniques....   [tags: Healthcare]
:: 11 Works Cited
1354 words
(3.9 pages)
Strong Essays[preview]
Essay on Diagnosis of PAD and CAD in India - : Peripheral arterial disease (PAD), being a manifestation of systemic atherosclerosis, carries a high risk of adverse cardiovascular events. Secondary medical prevention therapies of same magnitude as that for coronary artery disease (CAD) are recommended for PAD patients also. Available evidence indicates that this condition commonly remains underdiagnosed and undertreated. There is lack of any report about management of these patients in India. Objective: To characterize the atherosclerotic risk factor profile and pattern of drug prescription for patients of PAD at a tertiary care teaching hospital and to compare this management with standard guidelines....   [tags: prescription, doctor, hospital]719 words
(2.1 pages)
Good Essays[preview]
Calmodulin (CaM) Essay - Introduction The first line of invertebrate defense mechanism is believed to rely on innate immunity to limit pathogen infection. The innate immune system consists of physical, humoral and particularly cellular responses, which play a crucial role in phagocytosis, encapsulation and nodule formation. Moreover, the humoral barrier can also synthesize many antimicrobial peptides, pathogen recognition receptors (PRRs), prophenoloxidase and clotting cascade to eradicate pathogens [1-3]. However, all mechanisms have to occur in a concerted fashion for effective response....   [tags: intracellular Ca2+ sensor]
:: 27 Works Cited
3294 words
(9.4 pages)
Strong Essays[preview]
CAM and the Medical Community Essay - CAM and the Medical Community Alternative, complementary, and integrative healing are all part of a well debated but poorly researched area of medicine. Doctors of the conventional American and European medical communities have been long prone to dismiss unconventional healing methods such as acupuncture, herbal supplements, and massage therapy as ineffective, or outright crackpot methods of treating illness. The view of the medical community, however, seems to have little impact of the growing popularity of CAM (complementary and alternative medicine) among patients....   [tags: Medicine Medical Health Essays]
:: 6 Works Cited
1283 words
(3.7 pages)
Strong Essays[preview]
Essay on Ameri-CAD Residence Framing - Purpose This sample residence demonstrates some of the capabilities of ADT3. A model of the residence was created and then used to produce a set of construction documents and presentation files including an animation of the framing, exterior and interior. The included methods are only one way of creating a set of construction documents. Files Ameri-CAD Residence.dwg This is the primary ADT3 drawing file containing the model and construction documents. As this file contains many objects including a framing drawing that has schedule data attached for creating a bill of materials, it may take a while to load....   [tags: essays research papers]445 words
(1.3 pages)
Strong Essays[preview]
CAD-Computer Aided Design Essay - CAD-Computer Aided Design Computer Aided Design systems make it easy to create a picture of a new design, then you are able to change the picture on the computer. This saves time because you don’t have to re draw everything from the way it was originally started of with. It is also quicker to evaluate. There are many different types of CAD programs available to the industries and designers. They are concerned with either the visual appearance of the product or the technical details and difficulties....   [tags: Computer Science]565 words
(1.6 pages)
Strong Essays[preview]

Related Searches

Long Run         Food Market         Sure         Disks         Manufacture         Tablet         Designs         Resistant         Copy         Rubber        




for manufacturing complex shapes in an accurate and repeatable manner.
During the 1950's these Numerically Controlled machines used the
existing technology of paper tapes with regularly spaced holes punched
in them to feed numbers into controller machines that were wired to
the motors positioning the work on machine tools. The
electro-mechanical nature of the controllers allowed digital
technologies to be easily incorporated as they were developed.

. But now with cad cam if you make a mistake you can just delete it
strait away and things are so much quicker and easier once you get
used to it. Also it is so much more accurate because you can type in
the exact angle etc. Also they didn't have cam so they would have to
make their projects by hand.

Using cad cam in resistant materials

When you do resistant materials it quite hard to make precise pieces
of work to how you drew them but when you use cad/cam it is much
easier


How it is done
--------------

1. design the piece you would like to make on the computer this is
using cad. One of the programs used is 2d design this is a screen shot
from someone designing a net on it.

[IMAGE]

2. Then you first have to have to connect the computer to a cam
machine and then you have to configure it e.g. position the output
accurately, control depths of cut, feeds, speeds, etc., as shown below

[IMAGE]

3. Then you let the machine do the work and hopefully it will produce
the product you designed here are a few finished products that have
been done using 2d design

[IMAGE]

TYPICAL WORK PRODUCED USING 2D DESIGN

[IMAGE][IMAGE]

[IMAGE][IMAGE][IMAGE] [IMAGE]

Having the use of cad cam in resistant materials has helped the
mass-producing of products a lot as before this would be hard to do.
You would have to do each piece by hand which wouldn't be as accurate
and would be much more time consuming. Also if you aren't very good at
doing resistant materials using tools etc. then cad cam would be a lot
easier because all you need to be good at is computers and designing.
Now people can mass produce products without employing as many staff
and it would also take less time therefore produce more money in the
long run


Conclusion
----------

Overall you can see that cad cam is so much better than old-fashioned
ways because it is

· Faster

· More convenient

· Easier

· Easy to correct mistakes

· Mass production.

Cad cam has influenced our world so much more because it stops
mistakes and creates everything the same so there are no mistakes in
any of the things made.

It has influenced the electronically world a lot because they like to
mass produce things a lot as well with packaging etc. so overall cad
cam is better.

http://www.techsoftuk.co.uk/2D.htm



Computer-aided design (CAD) involves creating computer models defined by geometrical parameters. These models typically appear on a computer monitor as a three-dimensional representation of a part or a system of parts, which can be readily altered by changing relevant parameters. CAD systems enable designers to view objects under a wide variety of representations and to test these objects by simulating real-world conditions.

Computer-aided manufacturing (CAM) uses geometrical design data to control automated machinery. CAM systems are associated with computer numerical control (CNC) or direct numerical control (DNC) systems. These systems differ from older forms of numerical control (NC) in that geometrical data are encoded mechanically. Since both CAD and CAM use computer-based methods for encoding geometrical data, it is possible for the processes of design and manufacture to be highly integrated. Computer-aided design and manufacturing systems are commonly referred to as CAD/CAM.

THE ORIGINS OF CAD/CAM

CAD had its origins in three separate sources, which also serve to highlight the basic operations that CAD systems provide. The first source of CAD resulted from attempts to automate the drafting process. These developments were pioneered by the General Motors Research Laboratories in the early 1960s. One of the important time-saving advantages of computer modeling over traditional drafting methods is that the former can be quickly corrected or manipulated by changing a model's parameters. The second source of CAD was in the testing of designs by simulation. The use of computer modeling to test products was pioneered by high-tech industries like aerospace and semiconductors. The third source of CAD development resulted from efforts to facilitate the flow from the design process to the manufacturing process using numerical control (NC) technologies, which enjoyed widespread use in many applications by the mid-1960s. It was this source that resulted in the linkage between CAD and CAM. One of the most important trends in CAD/CAM technologies is the ever-tighter integration between the design and manufacturing stages of CAD/CAM-based production processes.

The development of CAD and CAM and particularly the linkage between the two overcame traditional NC shortcomings in expense, ease of use, and speed by enabling the design and manufacture of a part to be undertaken using the same system of encoding geometrical data. This innovation greatly shortened the period between design and manufacture and greatly expanded the scope of production processes for which automated machinery could be economically used. Just as important, CAD/CAM gave the designer much more direct control over the production process, creating the possibility of completely integrated design and manufacturing processes.

The rapid growth in the use of CAD/CAM technologies after the early 1970s was made possible by the development of mass-produced silicon chips and the microprocessor, resulting in more readily affordable computers. As the price of computers continued to decline and their processing power improved, the use of CAD/CAM broadened from large firms using large-scale mass production techniques to firms of all sizes. The scope of operations to which CAD/CAM was applied broadened as well. In addition to parts-shaping by traditional machine tool processes such as stamping, drilling, milling, and grinding, CAD/CAM has come to be used by firms involved in producing consumer electronics, electronic components, molded plastics, and a host of other products. Computers are also used to control a number of manufacturing processes (such as chemical processing) that are not strictly defined as CAM because the control data are not based on geometrical parameters.

Using CAD, it is possible to simulate in three dimensions the movement of a part through a production process. This process can simulate feed rates, angles and speeds of machine tools, the position of part-holding clamps, as well as range and other constraints limiting the operations of a machine. The continuing development of the simulation of various manufacturing processes is one of the key means by which CAD and CAM systems are becoming increasingly integrated. CAD/CAM systems also facilitate communication among those involved in design, manufacturing, and other processes. This is of particular importance when one firm contracts another to either design or produce a component.

ADVANTAGES AND DISADVANTAGES

Modeling with CAD systems offers a number of advantages over traditional drafting methods that use rulers, squares, and compasses. For example, designs can be altered without erasing and redrawing. CAD systems also offer "zoom" features analogous to a camera lens, whereby a designer can magnify certain elements of a model to facilitate inspection. Computer models are typically three dimensional and can be rotated on any axis, much as one could rotate an actual three dimensional model in one's hand, enabling the designer to gain a fuller sense of the object. CAD systems also lend themselves to modeling cutaway drawings, in which the internal shape of a part is revealed, and to illustrating the spatial relationships among a system of parts.

To understand CAD it is also useful to understand what CAD cannot do. CAD systems have no means of comprehending real-world concepts, such as the nature of the object being designed or the function that object will serve. CAD systems function by their capacity to codify geometrical concepts. Thus the design process using CAD involves transferring a designer's idea into a formal geometrical model. Efforts to develop computer-based "artificial intelligence" (AI) have not yet succeeded in penetrating beyond the mechanical—represented by geometrical (rule-based) modeling.

Other limitations to CAD are being addressed by research and development in the field of expert systems. This field is derived from research done in AI. One example of an expert system involves incorporating information about the nature of materials—their weight, tensile strength, flexibility, and so on—into CAD software. By including this and other information, the CAD system could then "know" what an expert engineer knows when that engineer creates a design. The system could then mimic the engineer's thought pattern and actually "create" more of the design. Expert systems might involve the implementation of more abstract principles, such as the nature of gravity and friction, or the function and relation of commonly used parts, such as levers or nuts and bolts. Expert systems might also come to change the way data are stored and retrieved in CAD/CAM systems, supplanting the hierarchical system with one that offers greater flexibility. Such futuristic concepts, however, are all highly dependent on our abilities to analyze human decision processes and to translate these into mechanical equivalents if possible.

One of the key areas of development in CAD technologies is the simulation of performance. Among the most common types of simulation are testing for response to stress and modeling the process by which a part might be manufactured or the dynamic relationships among a system of parts. In stress tests, model surfaces are shown by a grid or mesh, that distort as the part comes under simulated physical or thermal stress. Dynamics tests function as a complement or substitute for building working prototypes. The ease with which a part's specifications can be changed facilitates the development of optimal dynamic efficiencies, both as regards the functioning of a system of parts and the manufacture of any given part. Simulation is also used in electronic design automation, in which simulated flow of current through a circuit enables the rapid testing of various component configurations.

The processes of design and manufacture are, in some sense, conceptually separable. Yet the design process must be undertaken with an understanding of the nature of the production process. It is necessary, for example, for a designer to know the properties of the materials with which the part might be built, the various techniques by which the part might be shaped, and the scale of production that is economically viable. The conceptual overlap between design and manufacture is suggestive of the potential benefits of CAD and CAM and the reason they are generally considered together as a system.

Recent technical developments have fundamentally impacted the utility of CAD/CAM systems. For example, the ever-increasing processing power of personal computers has given them viability as a vehicle for CAD/CAM application. Another important trend is toward the establishment of a single CAD-CAM standard, so that different data packages can be exchanged without manufacturing and delivery delays, unnecessary design revisions, and other problems that continue to bedevil some CAD-CAM initiatives. Finally, CAD-CAM software continues to evolve in such realms as visual representation and integration of modeling and testing applications.

THE CASE FOR CAS AND CAS/CAM

A conceptually and functionally parallel development to CAD/CAM is CAS or CASE, computer-aided software engineering. As defined by SearchSMB.com in its article on "CASE," "CASE '¦ is the use of a computer-assisted method to organize and control the development of software, especially on large, complex projects involving many software components and people." CASE dates back to the 1970s when computer companies began to apply concepts from the CAD/CAM experience to introduce more discipline into the software development process.

Another abbreviation inspired by the ubiquitous presence of CAD/CAM in the manufacturing sector is CAS/CAM. This phrase stands for Computer-Aided Selling/Computer-Aided Marketing software. In the case of CASE as well as CAS/CAM, the core of such technologies is integration of work flows and application of proven rules to a repeating process.

BIBLIOGRAPHY

Ames, Benjamin B. "How CAD Keeps It Simple." Design News. 19 June 2000.

"CAD Software Works with Symbols from CADDetails.com." Product News Network. 11 January 2006.

"CASE." SearchSMB.com. Available from http://searchsmb.techtarget.com/sDefinition/0,sid44_gci213838,00.html. Retrieved on 27 January 2006.

Christman, Alan. "Technology Trends in CAM Software." Modern Machine Shop. December 2005.

Leondes, Cornelius, ed. "Computer-Aided Design, Engineering, and Manufacturing." Vol. 5 of The Design of Manufacturing Systems. CRC Press, 2001.

"What Do You Mean?" Mechanical Engineering-CIME. November 2005.