Study and Implementation of CNC Lathe Machining Simulation System

2013 ◽  
Vol 395-396 ◽  
pp. 1222-1226
Author(s):  
Sha Xu ◽  
En Qi Wu ◽  
Guo Liu
Keyword(s):  
Simulation System ◽  
Virtual Manufacturing ◽  
Numerical Control ◽  
Machining Process ◽  
Dynamic Scaling ◽  
Motion Simulation ◽  
Machining Simulation ◽  
Forming Process ◽  
Cnc Lathe ◽  
Scrap Rate

Virtual manufacturing technology is used to simulate the computer numerical control (CNC) lathe, virtual prototype of the CNC lathe is established. In the simulating process, the explain module and the check module of the CNC code are analyzed, the differential radial dynamic scaling technology is used to simulate the workpiece forming process, then the motion simulation of the virtual CNC lathe system is realized, and the system is drived by the CNC code. The machining process and workpiece forming process can be observed directly in the virtual environment, so the correctness of the CNC code can be checked in advance to avoid the interference, collisions or other problems in the actual lathe processing and reduce the the scrap rate of the workpiece and tool in the actual machining process.

Effect of process parameters on formability in two-point incremental forming-machining of planar and twisted AA5083 blades

2022 ◽  
pp. 095440542110697
Author(s):  
Hossein Ghorbani-Menghari ◽  
Mehrdad Azadipour ◽  
Mehran Ghasempour-Mouziraji ◽  
Young Hoon Moon ◽  
Ji Hoon Kim
Keyword(s):  
Tool Path ◽  
Incremental Forming ◽  
Dimensional Accuracy ◽  
Numerical Control ◽  
Machining Process ◽  
Curved Surface ◽  
Forming Process ◽  
Forming Temperature ◽  
Feature Based ◽  
Tool Diameter

The deformation machining process (DMP) involves machining and incremental forming of thin structures. It can be applied for manufacturing products such as curved-surface blades without using 5-axis computerised numerical control machines. This work presents the effect of tool diameter and forming temperature on spring-back and dimensional accuracy of a simple fabricated part. The results of the first phase of the study are utilised to design the fabrication process of a curved surface blade. A feature-based algorithm is used to design the tool path for the forming process. The dimensional accuracy of the final product is improved through warm forming, two-point incremental forming, and extension of the bending zone to the outside of the product edges. The results show that DMP can be used to fabricate complex curved-surface workpieces with acceptable dimensional accuracy.

Smart Machining Simulation Based on High-Level Data

2010 ◽  
Author(s):  
Aini Zuhra Abdul Kadir ◽  
Xun Xu
Keyword(s):  
Machine Tool ◽  
Input Data ◽  
Simulation System ◽  
Machining Process ◽  
Machining Simulation ◽  
Time Data ◽  
Machining Processes ◽  
Level Data ◽  
G Code ◽  
High Level

The main objective of any machining simulation system is to produce a model that can reveal or mimic the real machining process as accurately as possible. Current simulation systems often use G-code or CL data as input that has inherent drawbacks such as vendor-specific nature, incomplete data, irreversible data conversions and lack of accuracy. These limitations hinder the development of a ‘trustworthy’ simulation system. Hence, there is a need for higher-level input data that can assist with accurate simulation for machining processes. There is also a need to take into account of true behaviour and real-time data of a machine tool. The paper presents a ‘near-real simulation’ solution for more accurate results. STEP-NC is used as the input data as it provides a more complete data model for machining simulations. Data from the machine tool is captured by means of sensors to provide true values for machining simulation purposes. The outcome of the research provides a smart and better informed simulation environment. The paper reviewed some of the current simulation approaches, discussed input data sources for smart simulation system and proposed near-real simulation system architecture.

Application Analysis of Machining Simulation and Post-Processing of NC Turning Center

2014 ◽  
Vol 620 ◽  
pp. 522-527 ◽  
Author(s):  
Shu Yun Ge ◽  
Xiang He Qiao ◽  
Yao Ye ◽  
Hao Hao Chen ◽  
Yong Xiang Li
Keyword(s):  
Machine Tools ◽  
Tool Path ◽  
Simulation System ◽  
Machining Process ◽  
Practical Significance ◽  
Production Cycle ◽  
Machining Simulation ◽  
Nc Program ◽  
Turning Center ◽  
Nc Machine

NC machining simulation, as one of the key technology in the field of CAD/CAM, can effectively check out the interference collisions that may occur in the machining process, significantly improve the safety usage of NC machine tools, has important practical significance to prevent the occurrence of machine accidents. Based on the integrated simulation module of UG NX software, this paper established the simulation model of NC turning center and elaborated the establishing process of machining simulation system, including the creation and verification of tool path, the digital model assembly, machine driver and motion model and so on. So tool path simulation and processing simulation were achieved, and the phenomenon of over-cutting and under-cutting between the parts and the cutting tool can be discovered timely. Meanwhile, on the basis of UG/Post module, the special postprocessor for NC turning center was developed to automatically output NC program, and the generated NC program can directly enter the NC machine tool for processing without manual modification, which will improve the efficiency and quality of automatic programming of machine tools, thereby shortening production cycle and reducing processing costs. Finally, the product processing examples verify the correctness and practicability of the special post-processor and process simulation system.

Digital Twin–oriented real-time cutting simulation for intelligent computer numerical control machining

2020 ◽  
pp. 095440542093786
Author(s):  
Xian Cao ◽  
Gang Zhao ◽  
Wenlei Xiao
Keyword(s):  
Computer Numerical Control ◽  
Numerical Control ◽  
Machining Process ◽  
Machining Simulation ◽  
Process Data ◽  
Numerical Control Machining ◽  
Digital Twin ◽  
Twin System ◽  
Computer Numerical Control System ◽  
Complete Process

Digital Twin has become a frontier research topic in recent years and the important development direction of intelligent manufacturing. For numerical control machining, a Digital Twin system can be used as an intelligent monitoring and analysis center by reflecting the real machining process in a virtual environment. The machining simulation is the key technology to realize this kind of application. However, existing machining simulation systems are designed for off-line situation that cannot be used directly in Digital Twin environment. The challenges for machining simulation are analyzed and explained in this article: (1) complete process data representation in simulation system; (2) executing in cooperating with computer numerical control system; (3) more efficient simulation algorithm. In order to meet these challenges, a new machining simulation system is proposed. STEP-NC standard is used to save complete process data exported from the computer-aided manufacturing system and synchronization algorithm is developed based on the communication data of computer numerical control system. Most importantly, an optimized tri-dexel-based machining simulation algorithm is developed to perform high efficiency that can follow the real machining process. Finally, a Digital Twin system for NC machining is presented that has been tested and verified in a workshop located in COMAC (Commercial Aircraft Corporation of China Ltd).

Experiments on Adaptive Constrained Control of a CNC Lathe

1982 ◽  
Vol 104 (2) ◽  
pp. 139-150 ◽  
Author(s):  
R. Bedini ◽  
P. C. Pinotti
Keyword(s):  
Numerical Control ◽  
Machining Process ◽  
Hill Climbing ◽  
Constrained Control ◽  
Economic Aspects ◽  
Machining Time ◽  
Turning Operations ◽  
Control Optimization ◽  
Cnc Lathe ◽  
On Line

The technological and economic aspects of the on-line optimization of turning operations on lathes equipped with a Computerized Numerical Control (CNC) are discussed. A model of the machining process suitable for developing an Adaptive Constrained Control (ACC) is described. For optimization, a hill-climbing strategy which can be software implemented in the operating system of the CNC is used. Performance of such an ACC is also compared with the more general Adaptive Control Optimization (ACO) System. Machining tests carried out on a CNC lathe fitted with the ACC System are reported and discussed. The practical effectiveness of the ACC so developed and the reduction in machining time are demonstrated with reference to complete working cycles of typical workpieces.

Virtual Manufacturing for Machining Process Monitoring

2012 ◽  
Vol 482-484 ◽  
pp. 2243-2246
Author(s):  
Bai Chun Li ◽  
Hai Jun Fu ◽  
Tian Biao Yu ◽  
Wan Shan Wang
Keyword(s):  
Virtual Reality ◽  
Machine Tool ◽  
Monitoring System ◽  
Process Monitoring ◽  
Machine Tools ◽  
Virtual Manufacturing ◽  
Machining Process ◽  
Network Module ◽  
Machining Simulation ◽  
Key Technology

This paper presents an overall framework of the machining process monitoring system based on virtual manufacturing and does research on its key technology and validates the system with a engraving machine tool. By using of tabletop virtual reality platform Quest 3D, a virtual environment of the machine tool has been created and the machining simulation combined with VC++ has been realized. It has been proved that the simulation and the actual processing interface of monitoring interface are consistent, and the effect is very good. What's more, Using the network module of the virtual reality platform Quest 3D and the additional functions of the database operation, the communications among the machine tools, the server and the client is finished and the manufacturing process monitoring system based on virtual manufacturing is also realized.

The Modeling and Simulation of Digital Lathe Based on OpenGL

2014 ◽  
Vol 988 ◽  
pp. 659-662
Author(s):  
Yan Rui Zhang ◽  
Hai Xia Bi ◽  
Tie Cheng Wang ◽  
Shi Jie Li
Keyword(s):  
Machine Tool ◽  
Cnc Machining ◽  
Constructive Solid Geometry ◽  
Motion Simulation ◽  
Machining Simulation ◽  
Solid Geometry ◽  
Cnc Lathe ◽  
Digital Production ◽  
Tool Motion ◽  
Geometry Method

In the article, a digital machining environment of CNC lathe is established. On the basis of the idea of Constructive Solid Geometry method, the system consists of the blank display model, the tool and fixture model, CNC machining program editing model and machining simulation model. By making use of VC++ and OpenGL graphics technology the program is done for machine tool motion simulation and cutting simulation. It is an effective accessory tool in the application of CNC lathe to digital production.

A Study of Numerically Controlled Lathe Simulation System Based on 3D Modelling Technology

2013 ◽  
Vol 347-350 ◽  
pp. 471-475
Author(s):  
Hai Yun Lin ◽  
Yu Jiao Wang ◽  
Yong Gang Xie
Keyword(s):  
Particle System ◽  
Processing System ◽  
Processing Technique ◽  
3D Modelling ◽  
Simulation System ◽  
Physical Models ◽  
Numerical Control ◽  
Machining Process ◽  
Behavioral Models ◽  
System Method

Based on a study of the Virtual Reality Technique and Numerical Control Processing Technique, this paper proposes the overall structure of virtual numerical control lathe system. Then the paper, with a combination of the virtual processing system theory, further investigates into the modeling method and machining process of the virtual processing system. By use of the 3DS Max Technique, the paper builds geometrical models of static objects, and builds behavioral models and physical models of dynamic objects by the redrawing technique and particle system method. At last, the paper simulates the whole numerical machining process.

Development of Machining Method for Micromold

2010 ◽  
Vol 154-155 ◽  
pp. 310-313
Author(s):  
Xue Feng Bi ◽  
Jin Sheng Wang ◽  
Jia Shun Shi ◽  
Ya Dong Gong
Keyword(s):  
Tool Path ◽  
Simulation Software ◽  
Machining Process ◽  
Machining Parameters ◽  
Machining Simulation ◽  
Post Process ◽  
Micro Parts ◽  
G Code ◽  
Micro Machine ◽  
3D Software

Micromold manufacturing technology is very important for the mass production of micro parts. In this paper, modeling of micromold is established in 3D software firstly. The 3D modeling is input into machining simulation software Master CAM to simulate machining process. The machining parameters and cutting tool path are optimized in machining simulation. Machining G code of micromold obtained from post-process program of Master CAM is input into HMI system of Micro Machine Tool (MMT), and hence the micromold will be machined precisely in MMT.

Finite Element Analysis of Incremental Sheet Forming for Metal Sheet

2018 ◽  
Vol 783 ◽  
pp. 148-153
Author(s):  
Muhammad Sajjad ◽  
Jithin Ambarayil Joy ◽  
Dong Won Jung
Keyword(s):  
Mechanical Properties ◽  
Sheet Metal ◽  
Tool Path ◽  
Incremental Forming ◽  
Single Point ◽  
Machining Process ◽  
Machining Parameters ◽  
Forming Process ◽  
Element Analysis ◽  
Tool Diameter

Incremental sheet metal forming, is a non-conventional machining process which offers higher formability, flexibility and low cost of production than the traditional conventional forming process. Punch or tool used in this forming process consecutively forces the sheet to deform locally and ultimately gives the target profile. Various machining parameters, such as type of tool, tool path, tool size, feed rate and mechanical properties of sheet metal, like strength co-efficient, strain hardening index and ultimate tensile strength, effects the forming process and the formability of final product. In this research paper, Single Point Incremental Forming was simulated using Dassault system’s Abaqus 6.12-1 and results are obtained. Results of sheet profile and there change in thickness is investigated. For this paper, we simulated the process in abaqus. The tool diameter and rotational speed is find out for the production of parts through incremental forming. The simulation is done for two type of material with different mechanical properties. Various research papers were used to understand the process of incremental forming and its simulation.

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