16 Result(s)
within
Chengrui Zhang
Media Management
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Article
Design and implementation of an open CNC core at the shop floor level
In this paper, a new CNC core design method, the function-separated design (FSD) method, is proposed to increase the modularity and reconfigurability of CNC systems, simplify the CNC development process, as we...
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Article
An optimization strategy for die design in the low-density polyethylene annular extrusion process based on FES/BPNN/NSGA-II
An optimization strategy for die design in the polymer extrusion process is proposed in the study based on the finite element simulation, the back-propagation neural network, and the non-dominated sorting gene...
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Article
A parametric hardware fine acceleration/deceleration algorithm and its implementation
Speed control is a very important factor to machining quality. In order to get high dynamic performance at the time of the machining speed changing, many kinds of algorithm for the acceleration/deceleration co...
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Article
A CNC system based on real-time Ethernet and Windows NT
Modern manufacturing industry requires computer numerical control (CNC) systems to be more open, extendable, and networked. Real-time Ethernet is introduced and its use in CNC is discussed in this paper. Compa...
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Article
Research and development of industrial real-time Ethernet performance testing system used for CNC system
Nowadays, the using of real-time Ethernet (RTE) in CNC system becomes a main trend because of its low cost and high performance. In order to guarantee the performance of CNC systems which use RTE, the characte...
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Article
Comprehensive evaluation of welding quality for butt-welded by means of CO2 arc vibratory welding
In order to improve the mechanical properties of welding, the welding quality of butt-welded by the application of CO2 arc vibratory welding was evaluated by tensile strength, fatigue life, microhardness, deforma...
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Article
Design and development of a CNC machining process knowledge base using cloud technology
Nowadays, computer numerical control (CNC) machine tool undertakes more processing tasks than other common machine tools because of its highly automated machining ability and high performance. However, due to ...
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Article
A STEP-based machining data model for autonomous process generation of intelligent CNC controller
As the key component of intelligent CNC machine tool, CNC controller is expected to provide various intelligent functions, among which, autonomous process planning is one of the most important functions. Howev...
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Article
An optimized feedrate scheduling method for CNC machining with round-off error compensation
Feedrate scheduling is one of the most important factors of computer numerical control (CNC) machining and has become a crucial research problem. In order to improve the machining accuracy and motion smoothnes...
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Article
An intelligent CNC controller using cloud knowledge base
CNC machine tool plays a vital role in intelligent manufacturing, but up to now, CNC controller, which works as the “brain” of the machine tool, is just a loyal executor of machining command without intelligen...
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Article
A novel time-rounding-up-based feedrate scheduling method based on S-shaped ACC/DEC algorithm
The round-off error, which is caused by cycle sampling of the interpolation period, affects the interpolation accuracy and motion smoothness of computer numerical control (CNC) machining. To consider the round...
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Article
A NURBS curve interpolator with small feedrate fluctuation based on arc length prediction and correction
Non-uniform rational B-spline (NURBS) curve has been widely used in manufacturing systems. A good interpolator can help the system to improve the contour accuracy and get smooth dynamics performance, but it is...
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Article
Online chatter detection in robotic machining based on adaptive variational mode decomposition
Chatter is the main problem that limits the application of industrial robots in the field of machining process. It is critically important to establish an adaptive chatter detection solution for robot machinin...
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Article
The posture optimization method based on deformation index in robotic milling process
Compared with traditional CNC machine tools, industrial robots have higher flexibility and lower cost in the machining field. However, the relatively low stiffness of the robot makes it difficult to meet the a...
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Article
On-the-fly laser processing method with high efficiency for continuous large-scale trajectories
Laser processing with galvanometric scanners and servo platforms has been prosperous in the industry recently, and researches in this field have been evolved from step-and-scan methods to on-the-fly methods. H...
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Article
A novel interpolator designed for laser scanning welding of hairpin windings in electric vehicle motors
Electric vehicles are recently prosperous due to decarbonization and electrification in transportation. However, manufacturing their motor windings with stable high quality is challenging, especially in hairpi...
