STEP-Compliant CAD/CNC System for Feature-Oriented Machining

Liu, Yazui; Zhao, Gang; Zavalnyi, Oleksandr; Cao, Xian; Cheng, Kang; Xiao, Wenlei

doi:10.14733/cadaps.2019.358-368

Cited by 10 publications

(3 citation statements)

References 1 publication

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“…STEP is a high-level programming language that allows for creating solid models with CAD software. The model's data structure can provide a bidirectional data flow capable of channeling data between CAD, CAM, and CNC platforms without redundancy or risk of information loss [11]. The exchange data should be defined using object-oriented modeling methods.…”

Section: Step File Data Structurementioning

confidence: 99%

Integrated Interface System of STEP Data Models for the Tool Path Generation

Rahman

Mohamed

Minhat

et al. 2022

IJIE

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The STEP (STandard for the Exchange of Product model data) is a worldwide standard for exchanging products between diverse computer systems and industrial applications. STEP files (ISO 10303) contain 3D data in the universal data format with a boundary representation (B-rep) that allows the exchange of data models between CAD, CAM, and CNC systems. Traditionally, G-code generation relies on CAM software as an add-on, which incurs significant installation costs. The purpose of this paper is to describe the development of an Integrated Interface System (I2S) for Tool Path Generation (TPG) for the CNC milling operations utilizing neutral STEP files.The algorithm was interpreted in Hypertext Preprocessor (PHP) programming and produced a computer interface system that is capable to convert STEP file geometric data to G-code format.The geometric features of the sample block were modeled using a 3D CAD model. The result was validated using machining simulation, and the machining is performed on a three-axis CNC milling machine with a PC-based controller.In modern manufacturing systems based on Open Architecture Controller (OAC), the development of the I2S provides an alternative to generating machining tool paths and G-code by intercepting CAM software.

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Section: Step File Data Structurementioning

confidence: 99%

Integrated Interface System of STEP Data Models for the Tool Path Generation

Rahman

Mohamed

Minhat

et al. 2022

IJIE

View full text Add to dashboard Cite

show abstract

“…STEP is a high-level programming language that allows solid models to be created using CAD software. The model data structure can provide a two-way data flow that can transfer data between CAD, CAM (Computer-Aided Manufacturing), and CNC platforms without redundancy or risk of information loss [1]. Object-oriented modelling should be utilized to define the exchanged data as there should be no data leakage on the Computer Assisted Technology (CAx) data chain [2].…”

Section: Introductionmentioning

confidence: 99%

Milling Features Recognition Methodology of Rectangular Fillet Blind Pocket for Universal Data Structure

Muhammad Haziq Omar,

Siti Nurul Akmal Yusof,

Saiful Bahri Mohamed

et al. 2023

ARASET

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Various studies have focused on developing an interface system that could integrate the machining process with CNC (Computer Numerical Control) machine tools by producing tool paths using STEP (Standard for the Exchange of Product model data) file as an input function. Studies to recognize features in STEP file by encoding the data of geometric entities of a CAD (Computer-Aided Design) design has been done by many researchers. However, they only focus on Cutter Location (CL) which eventually describes the machining profile in the x and y planes without considering the depth of the machining feature in the z-axis. Identifying and recognizing machining features in the STEP file is important since STEP is a platform for converting industry-standard CAD systems and software data models. The aim of this paper is to identify profiles of geometric machining features for rectangular fillet blind pockets using the Geometric Data Extraction (GDE) approach. Three cases have been carried out namely single rectangular fillet blind pocket, double rectangular fillet blind pocket and triple rectangular fillet blind pocket. The results were verified by manual graph plotting and automatic graph plotting using CPM 3D Plotter.

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“…One approach involves manually generating G-code from a product drawing, which requires specialized skills and experienced employees. However, this process is time-consuming and prone to errors [5]. Another method utilizes CAM software to automatically convert CAD drawings into G-code [6].…”

Section: Introductionmentioning

confidence: 99%

G-code converter using interface system for a STEP file (ISO 10303)

Rahman

Mohamed

Minhat

et al. 2023

IJEECS

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The STEP file is the “standard for the exchange of product model data,” which is usually used to exchange geometric data in boundary representation (B-rep) between different computer-aided design (CAD) platforms. These data can be fully utilized and integrated into a larger manufacturing organization, such as a computer-aided manufacturing (CAM) environment for computer numerical control (CNC) machining applications based on ISO 6983. The 3D models of 2D machining profiles were created in CAD software and saved as STEP files. The data structure was analyzed by comparing the geometric entities of the CAD model and the STEP file. The algorithm was created using the hypertext preprocessor (PHP) programming language and produced a computer interface system to convert STEP files into G-code format. The machining blocks with profile machining features were simulated using a CNC simulator and PC-based open architecture control (OAC) software. The G-code was validated on a three-axis CNC milling machine, and the result was compared to the CAD model to confirm the machining profile. The integrated interface system I2S demonstrates its ability to interpret all 2D profiles and generate machining tool paths and G-code, allowing data flow between CAD and CAM environments and shortening product development cycles.

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STEP-Compliant CAD/CNC System for Feature-Oriented Machining

Cited by 10 publications

References 1 publication

Integrated Interface System of STEP Data Models for the Tool Path Generation

Integrated Interface System of STEP Data Models for the Tool Path Generation

Milling Features Recognition Methodology of Rectangular Fillet Blind Pocket for Universal Data Structure

G-code converter using interface system for a STEP file (ISO 10303)

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