Use Cam Programming Systems example essay topic

Computer Aided Machining (CAM) web web What is it? CAM, (Computer-Aided Manufacturing). To use computers to manufacture a product. With CAM, a product such as a mold for pair of sunglasses is designed with a CAD (Computer Aided Design) program and machined using a CAM program. Machines that use CAM programming systems are called C.N.C. machines (Computer Numerical Control). Who is affected?

With the introduction of new technologies, machinists are rapidly changing their skills and are required to master new forms of knowledge and new operational skills. CNC involves the introduction into machining of multipurpose machines by electronic commands executed through a computer program. C.N.C. programming includes a broad range of techniques used in manufacturing. Skills that are needed are knowledge of manufacturing processes, metallurgy, math, and drafting. Such a background can provide a base from which students may pursue a degree in manufacturing engineering technology or mechanical engineering. The main types of machine tools that utilize CAM programming systems are: Machining Centers (both horizontal & vertical), Lathes, Boring Machines, Wire EDM (Electric Discharge Machine), Laser machines, Water jet, and Routers. Figure #1 Figure #2 Figure #3 Figure #4 Screen shots from web Figure 1- shows the finish product, a pair of sunglasses.

Figure 2- shows one side of the mold being produced on the computer screen. Figure 3- shows figure 2 actually machined Figure 4- shows the other side of the mold while it is being cut on a C.N.C. machine. The following is a breakdown of programming a basic part using a CAM programming system. (Geo shape) This button allows you to select the geometry you draw in CAD and have CAM turn that geometry into usable construction lines so that tool paths can be generated. (Start Pont Edit) This button allows you to select the lead-in and lead-out points for the router bit to use on your part. (Tools) This button allows you to pick a tool from the tool list.

(Cycle) Screen shot from Mastercam Programming system (Status) This section of the control panel allows you to enter the information you need for the material and cutters you are using (feed rates, spindle speeds, etc.) (Cut) This button allows you to cut a geo shaped polyline, applying the information you set up on the control panel. (Sequence) This button allows you to connect tool paths together, and make NC code. Select cuts in order, or select all cuts, and sort them. Conclusion With C.N.C. programming it is essential for a person to learn how to produce a part using manual equipment. Once the operator has a good understanding of machining principles and concepts, then the operator should learn how to operate a computer.

After the operator has attained computer knowledge and machining principles, they then will be ready to learn how to program using a CAM programming system. You need to have mastered both concepts, or else you will not be successful. With technology advancing so rapidly and as new design techniques are being invented, it is essential to be able to produce these parts. You need to make constant advances in machining, in order to keep up with changing technology. If you can invent a part but are unable to produce it, you haven't really invented anything. This field will keep changing with technology and you will need to keep up with it or else you will be left behind.

Bibliography

Mastercam. com (2002).
Retrieved February 23rd, 2002 from the World Wide Web: web.