scholarly journals Simply Complex

2006 ◽  
Vol 128 (01) ◽  
pp. 28-31
Author(s):  
Michael Abrams

This article focuses on industrial benefits of computer-aided manufacturing (CAM). With the ever multiplying functionality of both machine and software, the challenge for CAM programmers has become one of ‘how do you keep things simple and at the same time complex.’ Machine makers now work directly with CAM programmers so customers can get as much from their machines as possible. NX's newest software offers tool paths that are smoother and smarter, and take into account the material that's being cut, to better avoid collision. But the key to optimization is understanding every aspect of a machine, down to when and how it vibrates. Simulations let programs like NX and Vericut know every stage of a part while it is on the machine and this allows users to eliminate one of the most tedious of time drainers: documentation. NX software as well as Vericut automatically outputs documentation for the entire process.

Author(s):  
R. Hedrick ◽  
R. J. Urbanic ◽  
Ashley Novak

Computer-aided manufacturing (CAM) software is used to develop a process plan, which consists of an operations list, tool paths, tooling, process parameters, and depending on the system, material handling operations. Upon completing the development of a process plan, setup sheets are generated for the personnel involved in the setup, production, testing, and product validation activities for a product. Typically, this documentation is in a hardcopy format, or is a static electronic document, and the direction of the communication is unidirectional — from the process planner to the support personnel. With the ubiquitous communications tools available to individuals today, a more sophisticated approach should be taken to transmit, store, and communicate changes to and from the shop floor. Presently, standard setup documentation consists of the project information utilized for the developed process plan. Pictures such as screen captures of the tool path, virtual verification images, and physical elements such as specialty tools may be included. However, modifications are made continuously to improve the cycle time, quality, or to adjust for other product or process changes. This research focuses on the development of interactive setup sheets that utilize existing desktop CAD/CAM software and mobile technologies, with the potential for leveraging the advantages of manufacturing cloud computing. Videos, links to additional documentation, and the ability to edit a subset of process parameters such as a tool diameter are incorporated. The operator is able to physically change tools or other key process setup information, and then send the information to the CAM system in order to regenerate the updated tool paths and documentation. Complementing the flexible, agile, and reconfigurable paradigms is the communication flexibility provided by fast wireless networks along with, cloud computing resources that can accessed with mobile devices, which are ubiquitous in today’s society. This technology that has not yet been heavily employed in the manufacturing environment, and research leveraging these new tools need to be explored.


Materials ◽  
2003 ◽  
Author(s):  
Hui Chen ◽  
Zhixing Wang

Techniques of manufacturing integral marine propellers by Parallel Kinematics Machine (PKM) are discussed in this paper, and complete CAD/CAM steps for manufacturing propellers using UG CAD/CAM system are presented. The designed propeller model is defined by a series of aerofoil sections data, so UG/CAD module are used to create the 3-dimensional model of propeller, and tool paths are generated in UG/CAM module. Vericut is adopted to simulate the tool paths generated by UG/CAM and to check interferences. NC postprocessor for PKM is developed on the basis of UG/Post. It is invoked in UG/CAM and converts tool path data into NC program to drive PKM. Finally, machining experiments based on all the techniques discussed in this paper are made. Not only does it puts forward a new scheme and machine to manufacture marine propellers, but also can push the industrialization and practicality of PKM.


1983 ◽  
Author(s):  
R. Heine ◽  
R. Prewett ◽  
S. Coleman ◽  
L. Beebe ◽  
B. Davis

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