scholarly journals Adaptive CNC Machining Process Optimization of Near- net- shaped Blade based on Machining Error data Flow Control

2021 ◽  
Author(s):  
Dongbo Wu ◽  
wang hui ◽  
he lei ◽  
Jie Yu
Keyword(s):  
Flow Control ◽  
Process Optimization ◽  
Error Control ◽  
Data Flow ◽  
Cnc Machining ◽  
Numerical Control ◽  
Machining Process ◽  
Machining Error ◽  
Fixture System ◽  
Data Flow Control

Abstract Adaptive CNC machining process is one of the efficient processing solution for near- net- shaped blade, this study proposes an adaptive computer numerical control (CNC) machining process optimization scheme based on multi-process machining errors data flow control. The geometric and mechanical models of the multi-process adaptive CNC machining process are firstly constructed. The multi-process machining error data flow and the process system stiffness of near- net- shaped blade are then experimentally explored. The machining error flow collaborative control of the near- net- shaped blade multi-process CNC machining is finally realized by the adaptive CNC machining process under the premise of sufficient stiffness of the blade- fixture system. The results show that the dynamic displacement response of the blade multi-process CNC machining process is controlled within 0.007mm. The optimized adaptive CNC machining process based on the multi-process geometric machining error data flow control and the sufficient stiffness of blade- fixture system can realize the multi-process machining error control and high-precision machining of near- net- shaped blade. The process chain of the optimized adaptive CNC machining process is reduced by 87% compared with the low melting point alloy pouring process and 50% compared with adaptive CNC machining process of the twice on-machine measurement on the blade body.

scholarly journals Research on Machining Errors Control by Adaptive CNC Machining Process for Near-Net-Shaped Jet Engine Blades

2021 ◽  
Author(s):  
Dongbo Wu ◽  
Hui Wang ◽  
Jie Yu
Keyword(s):  
Position Error ◽  
Cnc Machining ◽  
Machining Process ◽  
Transmission Model ◽  
Machining Error ◽  
Contouring Error ◽  
Machining Errors ◽  
Reduction Effect ◽  
Fixture System

Abstract This study proposes an adaptive CNC machining process based on on-machine measurement to control the machining error of near-net-shaped blades. The multi-source and multi-process machining error transmission model of a near-net-shaped blade is established, and the reduction effect of the machining error transmission chain by the adaptive CNC machining process is qualitatively analyzed based on the machining error transmission flow model. The effects of the adaptive CNC machining process on the positioning benchmark error, machining position error, and machining contouring error are explored based on an experiment for the adaptive CNC machining process. In particular, the ability of the adaptive CNC machining process to cooperatively control the blade position error and the contouring error is discussed in relation to the stiffness of the blade-fixture system. The results show that the adaptive CNC machining process can reasonably reduce the machining errors caused by the positioning benchmark. The final deviation band of the blade body is reduced by 60% based on this adaptive CNC machining process. The adaptive CNC machining process can optimize the contouring error and the position error of the blade tenon root with only the stiffness of the blade-fixture system prerequisite being ensured. The adaptive CNC machining process has the excellent ability to control machining errors to improve the machining quality of the blade.

Data Flow Control Systems: an Example of Safety Validation

1993 ◽  
pp. 9-20 ◽  
Author(s):  
Cinzia Bernardeschi ◽  
Luca Simoncini ◽  
Andrea Bondavalli
Keyword(s):  
Flow Control ◽  
Control Systems ◽  
Data Flow ◽  
Data Flow Control

scholarly journals Network Adaptive Deadband: NCS Data Flow Control for Shared Networks

Sensors ◽  
2012 ◽  
Vol 12 (12) ◽  
pp. 16591-16613 ◽  
Author(s):  
Miguel Díaz-Cacho ◽  
Emma Delgado ◽  
José Prieto ◽  
Joaquín López
Keyword(s):  
Flow Control ◽  
Data Flow ◽  
Shared Networks ◽  
Data Flow Control

Synchronous Adjustment of Milling Tool Path Based on the Relative Deviation

2011 ◽  
Vol 133 (5) ◽  
Author(s):  
Xiao-Jin Wan ◽  
Cai-Hua Xiong ◽  
Lin Hua
Keyword(s):  
Tool Path ◽  
Cutting Tool ◽  
Cnc Machining ◽  
Numerical Control ◽  
Machining Process ◽  
Machining Accuracy ◽  
Source File ◽  
Modern Computer ◽  
Adjustment Strategy ◽  
Machining System

In machining process, machining accuracy of part mainly depends on the position and orientation of the cutting tool with respect to the workpiece which is influenced by errors of machine tools and cutter-workpiece-fixture system. A systematic modeling method is presented to integrate the two types of error sources into the deviation of the cutting tool relative to the workpiece which determines the accuracy of the machining system. For the purpose of minimizing the machining error, an adjustment strategy of tool path is proposed on the basis of the generation principle of the cutter location source file (CLSF) in modern computer aided manufacturing (CAM) system by means of the prediction deviation, namely, the deviation of the cutting tool relative to the workpiece in computer numerical control (CNC) machining operation. The resulting errors are introduced as adjustment values to adjust the nominal tool path points from cutter location source file from commercial CAM system prior to machining. Finally, this paper demonstrates the effectiveness of the prediction model and the adjustment technique by two study cases.

A data flow control electronic exchange dataflex-1

1985 ◽  
Vol 68 (5) ◽  
pp. 66-74
Author(s):  
Mikio Yamashita ◽  
Minoru Akiyama, Regular Members
Keyword(s):  
Flow Control ◽  
Data Flow ◽  
Data Flow Control

New Approaches in Tool Path Optimization of CNC Machining: A Review

2014 ◽  
Vol 663 ◽  
pp. 657-661 ◽  
Author(s):  
Khashayar Danesh Narooei ◽  
Rizauddin Ramli
Keyword(s):  
Tool Path ◽  
Research Direction ◽  
Cnc Machining ◽  
Numerical Control ◽  
Path Optimization ◽  
Machining Process ◽  
Future Research ◽  
Automotive Manufacturing ◽  
Tool Path Optimization ◽  
Automotive Part

Computer numerical control (CNC) machines have been widely used in automotive manufacturing industries especially of machining operation in automotive part such as engine body and cylinder. One of the key features that improve efficiency of CNC machining is through the optimization of tool path. Previous researcher to optimize tool path has premeditated several approaches. This paper aims to provide a critical review of those approaches that have been developed in tool path. The developed tool path approaches covered different types of machining process under various constraints condition. This paper focuses on tool path generation in CNC machining such as milling and cutting process. Based on our finding, this review paper collects information on tool path optimization and recommends future research direction.

Sign in / Sign up

Export Citation Format

Share Document