Mapping the Extracted Manufacturing Features to Process Planning

2007 ◽  
pp. 205-214
Keyword(s):  
Process Planning ◽  
Manufacturing Features

Review of STEP-NC Compliant System for Turn-Mill Operations

2011 ◽  
Vol 383-390 ◽  
pp. 2827-2831
Author(s):  
Yusri Yusof ◽  
Mohd Fahrurazi Mohd Nor
Keyword(s):  
Process Control ◽  
Process Planning ◽  
The Novel ◽  
Process Measurement ◽  
Computational Environment ◽  
Specific Focus ◽  
Manufacturing Features

Today with the latest technology the information beyond tool movement and switching instruction such as tooling, manufacturing features and process sequences are needed to support global adaptability for manufacturing with a specific focus on CNC-based manufacture This research focuses on the use of the new standard; ISO 14649 (STEP-NC), to address the process planning and machining of discrete turn/mill components and proposes a STEP Compliant NC structure for generation of ISO 14646 code which can be used for turned component manufacture. The novel application of this work is STEP-NC compliant process control where the research will utilise and extend the standard for in process measurement at the machine and also explore the application and integration of the STEP-NC standards. The major contribution of this research is the review of a computational environment for a STEPNC compliant system for turn/mill operations.

Integration of CAD, CAPP and Process Modeling Using XML Technologies

2006 ◽  
Author(s):  
Pravin Khurana ◽  
Dusan N. Sormaz ◽  
Raghunath Khetan
Keyword(s):  
Process Planning ◽  
Process Modeling ◽  
Process Design ◽  
Software Tool ◽  
Cad Model ◽  
Computer Aided ◽  
Cad Models ◽  
Feature Based ◽  
Manufacturing Features

Integration of CAD (Computer Aided Design), CAPP (Computer Aided Process Planning) and Process Modeling activities plays a vital role in enabling concurrent product and process design. Typically each of these functions is performed in its own dedicated software environment. The integration will require interfacing several disconnected processes and software components built in different languages, and platforms. This paper presents an integration methodology, validated using a case study, in which a steering housing was analyzed and its process planning and design tasks were integrated using several software tools. The first integration task was to generate a feature based CAD model (in Unigraphics) and map these design features to a set of manufacturing features. Feature based design was performed using the Horizontal Modeling™ approach developed at Delphi. Features developed using this approach were then mapped to manufacturing features using APPS, a software tool developed at Delphi Dynamics and Propulsion Innovation Center. This task involved interrogation of the geometric CAD model to generate geometric and tolerance information and represent them in a format suitable for feature-based process planning. The second task of integration is generation of feasible “production-intent” process plans. This task is performed using APPS and IMPlanner process planner, a knowledge based software tool developed at Ohio University. The third and final task of integration is automated generation of in-process CAD models. This task involved the integration of Delphi process design techniques to generate CAD models (in Unigraphics) to represent the component at each stage of the manufacturing process. Evaluation of these steps through the case study has identified the strengths and weaknesses of the proposed integration methodology, which is reported in this paper.

scholarly journals The Use of Virtual Manufacturing Features in forward Manufacturing Process Planning

2018 ◽  
Vol 167 ◽  
pp. 02008
Author(s):  
Janusz Pobozniak
Keyword(s):  
Process Planning ◽  
Manufacturing Process ◽  
Virtual Manufacturing ◽  
Missing Link ◽  
Finished Part ◽  
Manufacturing Process Planning ◽  
Intermediate States ◽  
Cad Cam ◽  
Forward Process ◽  
Manufacturing Features

CAPP system is the missing link between CAD/CAM system. Two types of operation of CAPP systems can be distinguished. The first one is the backward process planning, where the part is transformed from its ready state to the stock state. The second method is the forward planning, where the stock is transformed into the finished part. Backward process planning allow for the greater degree of automation, but is difficult for the acceptation among the industrial users. One of the problem in the forward process planning is the necessity to use the manufacturing features which do not occur in the finished part, they occur only in the part intermediate states. The paper propose so called virtual manufacturing features to solve this problem.

scholarly journals The Intelligent Macro-process Planning Based on an Improved BP Neural Network for STEP-NC 2.5D Manufacturing Features

2020 ◽  
Vol 56 (1) ◽  
pp. 148
Author(s):  
ZHANG Yu ◽  
LI Dongsheng ◽  
DONG Xiaoye ◽  
WANG Zhiwei ◽  
YANG Shuhua ◽  
...  
Keyword(s):  
Neural Network ◽  
Process Planning ◽  
Bp Neural Network ◽  
Manufacturing Features

Methodology for Recognizing Manufacturing Features of Prismatic Components from DXF Files

2015 ◽  
Vol 760 ◽  
pp. 111-116
Author(s):  
Giorgiana Elena Armasoiu ◽  
Marian Gheorghe
Keyword(s):  
Process Planning ◽  
Data Exchange ◽  
Planning System ◽  
File Format ◽  
Geometric Information ◽  
Cad System ◽  
Prismatic Parts ◽  
Process Planning System ◽  
Automated Process ◽  
Manufacturing Features

Recognition of manufacturing features associated to certain parts using DXF files have been proposed by a number of reseraches. Since the database stuctures that provide geometric information regarding the parts differ from one CAD system to another, the interpretation and modification of these data are difficult or impossible. This paper presents an algorithm for extracting the design features from a data exchange file format, supporting the development of automated process planning system for prismatic parts.

scholarly journals Study of Process Planning based on Feature Dependency of Manufacturing Features (3rd Report)

2007 ◽  
Vol 73 (6) ◽  
pp. 705-710 ◽  
Author(s):  
Takashi INOUYE ◽  
Takeshi KISHINAMI ◽  
Fumiki TANAKA
Keyword(s):  
Process Planning ◽  
Feature Dependency ◽  
Manufacturing Features

Graph-Based Feature Recognition and Combination Method for Automatic Process Planning System

2020 ◽  
Author(s):  
Da Xie ◽  
Jiang Zhu ◽  
Tomohisa Tanaka
Keyword(s):  
Process Planning ◽  
Feature Recognition ◽  
Numerical Control ◽  
Machining Process ◽  
Combination Method ◽  
Planning System ◽  
Feature Combination ◽  
Computer Aided ◽  
Machining Process Planning ◽  
Manufacturing Features

Abstract Generating the Numerical Control (NC) tool path for machining a complex shaped component is highly dependent on the proficiency of a Computer-Aided Manufacturing (CAM) programmer in manufacturing field, although the CAM systems now are highly integrated. A Computer-Aided Process Planning (CAPP) system, which can automatically extract the manufacturing features from the Computer-Aided Design (CAD) model and generate the machining process planning, has been expected for a long time. In this research, a graph-based CAPP system was proposed. It mainly includes four modules, data conversion module, feature classification module, feature combination module and process planning module. The first two modules claim a graph-based feature recognition method, output the recognized manufacturing features which are classified into four classes and defined as specific types. The feature combination module generates different paths to combine manufacturing features from a goal model into raw material shape by four kinds of combination methods corresponding to the four classes. Finally, the process planning module will give a cost estimation of all those paths with the consideration of manufacturing resources and time cost. A relatively optimized machining method and machining sequence will be generated as the output of this proposed system.

Handling Protrusion Features With Virtual Pockets for Automated Process Planning

1995 ◽  
Author(s):  
Yuan-Shin Lee ◽  
Dhaval Daftari
Keyword(s):  
Process Planning ◽  
Feature Model ◽  
Design System ◽  
Second Stage ◽  
Automated Process Planning ◽  
Negative Feature ◽  
Feature Based ◽  
Automated Process ◽  
Feature Based Design ◽  
Manufacturing Features

Abstract In this paper a two step approach for the transformation of design features to manufacturing features is presented. In the first stage of the proposed algorithm, a methodology for handling protrusion features by the decomposition of the surrounding volume into basic, negative, machinable volumes is discussed. In the second stage called the feature refinement stage, relevant manufacturing information is appended to the negative feature model resulting from the first stage. The proposed methodology can be used to support automated process planning. Practical examples and computer implementation in an object oriented feature based design system are also presented.

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