New control strategy for CNC machines via STEP-NC
type: CreativeWork
description: The contemporary product design and manufacturing environment requires a bidirectional and seamless data flow throughout all stages of data transactions. The establishment of STEP (STandard for Exchange of Product data) offers manufacturers a new method to exchange product data in the entire product life cycle. As an extension to STEP, STEP-NC provides the potential to finally close the gap between design and manufacturing in the drive for a complete, integrated product development environment. The STEP-NC data model is a long overdue improvement in the domain of computer numerical controls (CNC) where G-codes have been in use for more than half a century. STEP-NC brings richer information to CNCs presenting an opportunity for the development of more intelligent, interoperable and informative machining. The research work documented in this thesis introduces a fully STEP-compliant CNC system with an aim to solve the problems faced by the current CNC systems, e.g. disconnection with the upper-stream activities. The research is based on the premise that a STEP-NC program can document “generic” manufacturing information (whatto- do). This way, a STEP-NC program can be made machine-independent and has an advantage over the conventional G-code based NC program that is always generated for a specific CNC machine. The core of the STEP-compliant CNC system is the mapping mechanism which accepts STEP-NC data and translates it into the type of G-code that a specific controller can understand. The STEP-compliant CNC system has two principal elements, a STEP-NC Adapter and a STEP-NC Converter. The STEP-NC Adapter takes a generic STEP-NC program as its input and produces 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 localised version of the generic STEP-NC file. It may be re-adapted to another manufacturing environment. The STEP-NC converter takes a native STEP-NC file and conve…
abstract: The contemporary product design and manufacturing environment requires a bidirectional and seamless data flow throughout all stages of data transactions. The establishment of STEP (STandard for Exchange of Product data) offers manufacturers a new method to exchange product data in the entire product life cycle. As an extension to STEP, STEP-NC provides the potential to finally close the gap between design and manufacturing in the drive for a complete, integrated product development environment. The STEP-NC data model is a long overdue improvement in the domain of computer numerical controls (CNC) where G-codes have been in use for more than half a century. STEP-NC brings richer information to CNCs presenting an opportunity for the development of more intelligent, interoperable and informative machining. The research work documented in this thesis introduces a fully STEP-compliant CNC system with an aim to solve the problems faced by the current CNC systems, e.g. disconnection with the upper-stream activities. The research is based on the premise that a STEP-NC program can document “generic” manufacturing information (whatto- do). This way, a STEP-NC program can be made machine-independent and has an advantage over the conventional G-code based NC program that is always generated for a specific CNC machine. The core of the STEP-compliant CNC system is the mapping mechanism which accepts STEP-NC data and translates it into the type of G-code that a specific controller can understand. The STEP-compliant CNC system has two principal elements, a STEP-NC Adapter and a STEP-NC Converter. The STEP-NC Adapter takes a generic STEP-NC program as its input and produces 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 localised version of the generic STEP-NC file. It may be re-adapted to another manufacturing environment. The STEP-NC converter takes a native STEP-NC file and conve…
author: Wang, Hongqiang
language: en
license: https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm
date published: 2009
date modified: 2026-07-24T01:02:59Z
provider: University of Auckland
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: ResearchSpace@Auckland

PropertyValue
property ID: Handle
value: https://hdl.handle.net/2292/5228