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The development of new step-NC mapping system for step-NC integration

Kassim@Kasim, Noordiana (2015) The development of new step-NC mapping system for step-NC integration. PhD thesis, Universiti Tun Hussein Onn Malaysia.


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This thesis developed STEP-CNC Mapping System, with an aim to solve the problem faced by the current CNC systems, which is the disconnection between CAD and CAM developments for the manufacturing industry activities. This research is based on the concept that a STEP-NC program is machine-independent and has an advantage over the conventional G-code based NC program that is always generated for a specific CNC machine. The central part of the STEP-CNC Mapping System is the mapping mechanism which accepts STEP AP and translates it into the type of G-code that a specific controller can understand. The STEP-CNC Mapping System has two principal elements, a STEP Converter and a STEP-NC Translator. The STEP Converter takes a generic STEP AP 214 program as its input and produces a native STEP-NC file with a more specific version of the STEP-NC program, by "adapting" it to a local manufacturing environment and capabilities. This native STEP-NC file is a more structured populated version of the generic STEP AP file. It may be re-adapted to another manufacturing environment. The STEP-NC Translator takes a native STEP-NC file and converts it to the required machine control data, for example G-codes, that are ready to be loaded to the targeted CNC controller. The conversion process is also called a mapping or translating process that utilizes the manufacturing environment databases developed for specific machine tools, or rather CNC controllers. The system uses Visual Basic as its development tools and Microsoft Access and text file as its primary database. This system realizes the future of a common interface for CNC machine tools. With this developed STEP-CNC Mapping System in place, a generic STEP AP 214 program can be made to drive different CNC machine tools and a STEP-NC data file based on IS0 14649 Part 11 is being generated and machined.

Item Type: Thesis (PhD)
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ1125-1345 Machine shops and machine shop practice
Depositing User: Normajihan Abd. Rahman
Date Deposited: 20 Jan 2016 08:43
Last Modified: 20 Jan 2016 08:43
URI: http://eprints.uthm.edu.my/id/eprint/7485
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