scholarly journals A Roadmap for STEP-NC Enabled Interoperable Manufacturing

2011 ◽  
Author(s):  
Martin Hardwick ◽  
Fiona Zhao ◽  
Fred Proctor ◽  
Sid Venkatesh ◽  
David Odendahl ◽  
...  
Keyword(s):  
International Collaboration ◽  
Data Model ◽  
Data Exchange ◽  
Process Data ◽  
Design Data ◽  
Tool Paths ◽  
Design Requirements ◽  
Nc Data ◽  
Code Standard ◽  
Iso 6983

STEP-NC is the result of a ten-year international effort to replace the RS274D (ISO 6983) G and M code standard with a modern associative language. The new standard connects CAD design data to CAM process data so that smart applications can understand both the design requirements for a part and the manufacturing solutions developed to make that part. STEP-NC builds on a previous ten-year effort to develop the STEP standard for CAD to CAD and CAD to CAM data exchange, and uses the modern geometric constructs in that standard to specify device independent tool paths, and CAM independent volume removal features. This paper reviews a series of demonstrations carried out to test and validate the STEP-NC standard. These demonstrations were an international collaboration between industry, academia and research agencies. Each demonstration focused on testing and extending the STEP-NC data model for a different application.

Challenges and Choices in the Specification and Implementation of the STEP-NC AP-238 Standard

2007 ◽  
Vol 7 (3) ◽  
pp. 283-291 ◽  
Author(s):  
Martin Hardwick ◽  
David Loffredo
Keyword(s):  
Cnc Machining ◽  
Manufacturing Processes ◽  
Key Factors ◽  
Process Data ◽  
Design Data ◽  
Tool Paths ◽  
Cad Cam ◽  
G Code ◽  
Code Standard ◽  
Iso 6983

STEP-NC AP-238 is the result of a ten-year effort to replace the RS274D (ISO 6983) M and G code standard with a modern associative language that connects CAD design data to CAM process data. STEP-NC builds on previous work to develop a neutral data standard for CAD data and uses the modern geometric constructs of that standard to define device-independent tool paths, and CAM-independent volume removal features. This paper describes four key factors, or challenges, that had to be addressed to extend STEP-NC AP-238 functionality beyond that offered by other CNC standards. The four factors are difficulties inherent in all CAD/CAM integration projects and can be summarized as follows: the information complexity of geometry, the volume of attributes defined for manufacturing processes, the difficulties of integrating models that span CAD and CAM, and the requirement for easy implementation. We describe an advanced CNC application that uses these four factors and show how STEP-NC AP-238 enhances CNC machining and measurement.

scholarly journals Digital Archiving and Process Management in the Bavarian State Department of Monuments and Sites

2021 ◽  
Author(s):  
Silke Jantos ◽  
C. Sebastian Sommer
Keyword(s):  
Data Model ◽  
Data Exchange ◽  
Process Management ◽  
Rapid Development ◽  
State Department ◽  
Process Data ◽  
Archaeological Heritage ◽  
Conservation Projects ◽  
Homogeneous Data ◽  
Or Applications

Over the last two decades, technical progress for archaeology within the Bavarian State Department of Monuments and Sites (BLfD) underwent rapid development. It began with the establishment of an information system (FIS) where the workflow of the Department of Archaeological Heritage is mapped. The next step consisted of standardisation of data capture for all institutions and companies undertaking excavation. In response, a homogeneous data model was developed and established through the application ExcaBook. In order to guarantee this solution would be used widely, an Importer was created to import data from other databases or applications. Hereafter it is also planned to process data from restoration and conservation projects, using a similar approach in order to work towards improving data exchange between all related sciences.

Research on the Information Extraction Technology of STEP

2011 ◽  
Vol 141 ◽  
pp. 455-459
Author(s):  
Xue Bin Liu ◽  
Wei Zhao ◽  
Chong Ning Li ◽  
De Ji Hu
Keyword(s):  
Data Model ◽  
Data Exchange ◽  
Extraction Technology ◽  
Development Environment ◽  
Integration System ◽  
Software Development Environment ◽  
Step Model ◽  
File Structure ◽  
Cad Cam ◽  
Nc Data

In order to generate STEP-NC data model in keeping with the ISO14649 protocol, extend the STEP model to the field of the CNC, the paper analyzes STEP standard and its file structure, develops the display software which can be read and display the STEP format file based on open source Open CASCADE geometric kernel by using the Visual Studio 2008 software development environment, designs one instance by using Pro/E software, and stored as a STEP format file in Pro/E environment, and then, using the software developed to read and display the STEP file. The results of this study improve the product data exchange and integration capabilities, lay a good foundation for generating the STEP-NC format file in the future, extracting the file STEP-NC machining information, and achieving CAD / CAM / CAPP integration system.

Analysis of ISO 6983 NC Data Based on ISO 14649 CNC Data Model

2006 ◽  
Author(s):  
Hiroshi Yamada ◽  
Fumiki Tanaka ◽  
Masahiko Onosato
Keyword(s):  
Data Model ◽  
Nc Data ◽  
Iso 6983

An Integrated Product and Process Data Model Using Step

1996 ◽  
Author(s):  
Parisa Ghodous ◽  
Denis Vandorpe
Keyword(s):  
Data Model ◽  
Data Exchange ◽  
Manufacturing Systems ◽  
Data Models ◽  
Computer Integrated Manufacturing ◽  
Process Data ◽  
Product Data ◽  
Process Representation ◽  
Product And Process

Abstract The integration in computer integrated manufacturing systems (CIMs) plays a significant role in improving the quality and productivity. To achieve this objective, a uniform product and process representation and an effective, comprehensive and reliable data exchange mechanism are required. Recent works on product data integration have led to STEP (international Standard for Exchange of Product data models). In this paper, we define a model which integrates the STEP product data models with process data models. The idea of classification of STEP product data models is used to classify the process data models. Examples from mechanical industries are included to demonstrate the features of this model.

Integration Based on STEP Standards

2009 ◽  
pp. 246-265
Author(s):  
Xun Xu
Keyword(s):  
Data Model ◽  
Data Exchange ◽  
Reference Model ◽  
New Paradigm ◽  
Data Formats ◽  
Manufacturing Information ◽  
Implementation Method ◽  
Iso 10303 ◽  
Nc Data ◽  
Manufacturing Chain

The integration model (Model B) as discussed in the previous chapter makes use of exchangeable neutral data formats such as IGES (1980). Neutral data formats provide a middle tier to connect CAD and CAM systems. Thus, Model B can create a collaborative manufacturing environment and make the design data exchange possible for large projects at the international level. Yet, some problems still remain. IGES was designed to exchange geometrical information only, so additional design or manufacturing information (such as feature information) within a proprietary model is ignored. During data exchange, some information may become astray during data transfer; geometry stitching or model repair is often needed. Plus, IGES is not an international standard. As previously discussed, there are also problems common to both Models A and B (Figure 10.1). Different data formats (e.g. IGES and ISO 6983-1, 1982) are used in the designto- manufacturing chain. Data loss occurs in the transaction from design to manufacturing because only low-level, step-by-step sequential machining commands are passed onto the CNC controllers, leaving the complete product model behind. Of particular significance has been the endeavour made by the International Organization for Standardization to introduce the STEP Standard (i.e. ISO 10303-1 [1994]). Major aerospace and automotive companies have proven the value of STEP through production implementations resulting in savings of US $150 million per year (Gallaher, O’Connor & Phelps, 2002, PDES, Inc. 2006). Moreover, STEP has recently been extended to cater to manufacturing data modelling and execution with an aim to fill the information gap between CAD/CAPP/CAM and CNC. The standard is informally known as STEP-compliant Numerical Control, or otherwise STEP-NC for short. It was given an ISO name of “ISO 14649: Data model for Computerized Numerical Controllers (ISO 14649-1, 2003)”, which defines the STEP-NC Application Reference Model. With STEP being extended to model manufacturing information, a new paradigm of integrated CAD/CAPP/CAM/CNC is emerging. This is illustrated in Figure 11.1. The key to this paradigm is that no data conversion is required and the data throughout the design and manufacturing chain are preserved. This chapter focuses on the use of STEP standards to support data exchange between CAD systems as well as facilitate data flow between CAD, CAPP, CAM, and CNC systems. Also discussed are the specific integration issues between CAD and CAPP, CAPP and CAM, and CAM and CNC using STEP standards. STEP-NC data model is a relatively new member in the STEP family, but it completes the entire suite of STEP standards from design to NC machining. Both Physical File Implementation Method (ISO 10303-21, 1994) and XML Implementation Method (ISO/TS 10303-18, 2004) are presented as the two popular ways of implementing STEP and STEP-NC.

scholarly journals From OpenEHR to FHIR and OMOP Data Model for Microbiology Findings

2021 ◽  
Author(s):  
Eugenia Rinaldi ◽  
Sylvia Thun
Keyword(s):  
Infection Control ◽  
Data Model ◽  
Data Exchange ◽  
Control Group ◽  
Common Data Model ◽  
University Hospitals ◽  
Data Set ◽  
Related Data ◽  
National Initiative ◽  
Data Elements

HiGHmed is a German Consortium where eight University Hospitals have agreed to the cross-institutional data exchange through novel medical informatics solutions. The HiGHmed Use Case Infection Control group has modelled a set of infection-related data in the openEHR format. In order to establish interoperability with the other German Consortia belonging to the same national initiative, we mapped the openEHR information to the Fast Healthcare Interoperability Resources (FHIR) format recommended within the initiative. FHIR enables fast exchange of data thanks to the discrete and independent data elements into which information is organized. Furthermore, to explore the possibility of maximizing analysis capabilities for our data set, we subsequently mapped the FHIR elements to the Observational Medical Outcomes Partnership Common Data Model (OMOP CDM). The OMOP data model is designed to support the conduct of research to identify and evaluate associations between interventions and outcomes caused by these interventions. Mapping across standard allows to exploit their peculiarities while establishing and/or maintaining interoperability. This article provides an overview of our experience in mapping infection control related data across three different standards openEHR, FHIR and OMOP CDM.

A Multi-process Manufacturing Approach Based on STEP-NC Data Model

2011 ◽  
pp. 253-263 ◽  
Author(s):  
R. Laguionie ◽  
M. Rauch ◽  
J.Y. Hascoet
Keyword(s):  
Data Model ◽  
Process Manufacturing ◽  
Nc Data

Internet-Based Delivery of CAD/CAM Capability: An Industry Case Study

1998 ◽  
Author(s):  
Simon Szykman ◽  
Ram D. Sriram
Keyword(s):  
Small Businesses ◽  
Computer Aided Design ◽  
Data Exchange ◽  
Engineering Industry ◽  
Product Development Process ◽  
The Internet ◽  
Design Data ◽  
Computer Aided ◽  
Cad Cam

Abstract This paper presents a case study in the use of the Internet as a medium for exchange of information and delivery of computer-aided design and computer-aided manufacturing (CAD/CAM) capability. The case study describes a collaboration among researchers and staff at the National Institute of Standards and Technology (NIST), and Thar Designs, Inc., a small business in Pittsburgh, PA that designs and sells high-pressure fluid pumps. The objective of this case study is to identify the needs of small businesses in engineering industry in the area of Internet-based CAD/CAM services. The Internet-based interaction performed in this study encompassed various stages in an iterative product development process, consisting of design, data exchange, manufacturability analysis, and fabrication of a prototype.

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