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IEEE International Conference on Industrial Technology, 2003
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6 pages
1 file
Usually, automatic cutting-off machines, of metallic pipes or bars, use constant cutting velocity. This mode of operation, constant cutting velocity combined with different profiles of materials to be cut, causes variable cutting forces to be applied to the saw. As a result, the cutting off machine is generally set for the worst expected conditions, otherwise excessive wear of the saw and machine will occur. Further, traditional cutting-off machines require adjustments to be made in order to automatically detect the completion of a cut. The objective of this project is the study of the application of control algorithms to the process of cutting-off metallic pipes or bars, with variable profiles, implemented in an industrial cutting-off machine, commercially available. The testes algorithms concern real-time cutting control and automatic detection of cut completion. The algorithms are implemented in a low cost Programmable Logic Controller (PLC), allowing its adoption in industrial applications without significant increase on machine cost. All algorithms were developed having in mind safety issues relative to the operation of the cutting machine in order to prevent damage to the machine itself.. Also, all process related relevant parameters are monitored on a Personal Computer using OPC (Object Linking and Embedding-for Process Control).
International Journal of Electrical and Computer Engineering (IJECE), 2023
Most of the old machines installed in different industries are managed manually by system operators. This action makes their productivity low and not suitable to cover the needs in other sectors. In addition, these machines are not without risks due to the proximity of the operators to them. The installing a new full system instead of the old one on the same site requires very high costs. So, modernizing the same old system by making its operation automatic has become necessary to reduce the economic cost significantly. In this paper, an automatic control system based on programmable logic controller (PLC) for the cutting steel plate machine that had been managed manually in a factory is designed. The system includes an Encoder that is used to specify the length of the steel plate to be cut by sending a signal to the PLC. The system operation is completed by using human machine interface (HMI) unit to monitor and control the system performance by the system operator. A practical test for the developed system offered more productivity (more than 30%), more safety, reduces human efforts and the total daily production cost (less than one third).
To understand the application and importance of the involvement of automation in conventional cutting machine in manufacturing. A cutting machine is available in various shapes and sizes, with small hand-held power cutting systems and to bench mounted and finally floor-mounted models. This paper includes the types of cutters, and shop formulas for setting up each operation. Safety plays a critical part in any operation involving power equipment. This paper also includes procedures for maintaining, and proper setting up the work and methods of selecting various tools, and object holding devices to get a job done safely without causing damage to the equipment, yourself, or someone nearby.
International Journal of Analytical, Experimental and Finite Element Analysis, 2021
The main objective of this paper is to design & analysis of an automatic operated pipe cutting machine. Engineers are developing refined machines and modern techniques are employed for economical manufacturing of products. At the same time, we should care about its quality and accuracy. In the era of automation, machines become an intrinsic part of human being. By the use of automation, machine gives great production rate than manual manufacturing process. In today's competitive market automation has powerfully entered in the industrial manufacturing process in order to increase the production rate and to reduce the process time without conceding with the accuracy of the product. Automatic pipe cutting machine is designed for industries to fragments metals pipes, rods or cylinders of accurate dimensions with high accuracy in less time. oil is used as a working fluid which is pumped with high pressure through pump to perform the mechanical work with the use of proper mechanism. Operator can easily operate Automatic pipe cutting machine. The running and maintenance rate of this machine is very cost-effective.
Eksploatacja i Niezawodność – Maintenance and Reliability, 2019
Further development of manufacturing technology, in particular machining requires the search for new innovative technological solutions. This applies in particular to the advanced processing of measurement data from diagnostic and monitoring systems. The increasing amount of data collected by the embedded measurement systems requires development of effective analytical tools to efficiently transform the data into knowledge and implement autonomous machine tools of the future. This issue is of particular importance to assess the condition of the tool and predict its durability, which are crucial for reliability and quality of the manufacturing process. Therefore, a mathematical model was developed to enable effective, real-time classification of the cutting blade status. The model was verified based on real measurement data from an industrial machine tool.
In today's industries, several types of machines are present that can cut single bar at a time. Though single bar cutting machine also differs to its size and shape. Today automation and increase in production rate is main step companies are undertaking for faster and cheaper production. Recently during project work we have seen a machine that can cut a bar (100mm diameter) with automatic feeding and cutting, but machine we have designed can cut three bars at a time and design of this is unique. This Project gives the information regarding the design of the machine and its working. For automatic bar cutting, Holding and feeding operation Hydraulic cylinders are used. Basic view of this Project is to in increase Production rate.
In today's industries, several types of machines are present that can cut single bar at a time. Though single bar cutting machine also differs to its size and shape. Today automation and increase in production rate is main step companies are undertaking for faster and cheaper production. Recently during project work we have seen a machine that can cut a bar (100mm diameter) with automatic feeding and cutting, but machine we have designed can cut three bars at a time and design of this is unique. This Project gives the information regarding the design of the machine and its working. For automatic bar cutting, Holding and feeding operation Hydraulic cylinders are used. Basic view of this Project is to in increase Production rate.
2003 IEEE International Symposium on Industrial Electronics ( Cat. No.03TH8692)
Third International Conference on Industrial Fuzzy Control and Intelligent Systems
Fuzzy control of machining process is undoubtedly a very promissory approach, taking on account machinetool complexity and the need of increasing its efficiency. Creation of the knowledge basis for this fuzzy controller requires something more than operators experience: an objective support. Such objective support is to be obtained from experiments, during which the machinetool actually performs the cutting process and corresponding input and output data must begathered. A rather efficient approach, fuzzy chstering, was chosen for elaborating this data in order to obtain the wanted knowledge basis for the fuzzy model. The paper describes algorithms, experiments and fuzzy models of the cutting process in a milling machine. Models so obtained are to be the basis for designing model-based fuzzy supervisory controllers for this machine.
Cutting & Tools in Technological System
The condition of the cutting part of the tool largely determines the quality of machining. Modern machine tools operate with limited operator participation, which necessitates the creation of automated systems for diagnosing tool conditions. An important part of this process is the development of mathematical and informational support, the creation of software classification systemsrecognition of instrument states and their failures. The article presents an approach to the construction of decision trees and feature spaces that reflect the dynamics of the states of cutting tools (on the example of cutters).
2013
This paper presents a novel control architecture system which is composed of a multi-objective cost function which Pareto optimizes the programming of cutting parameters while controlling the milling process to new cutting conditions if new constraints appear. The paper combines a self-optimized module which looks for and finds Pareto optimal cutting parameters according to multi-objective purposes and, a multi-model control module which keeps the cutting forces under prescribed upper safety limits independently of programmed cutting conditions and material properties while maintaining the performance of the process. An intelligent algorithm acts as decision supportsoftware to automatically switch to the best performance tracking controller among those available at each required time.
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