Real time online profile measurement system for steel wire products

Saurabh, Saurabh; Kundu, Chitresh; Ranjan, Rajiv; Kumar, Jayendra; Patra, Prabal

doi:10.29354/diag/112435

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…As laser measurement is a non-contact method, it can be applied to on-line measurement. Saurabh et al (2019) have used a laser sensor for the on-line measurement of the wire steel diameter. Laser sensors have been used to measure the thickness of a workpiece placed between the laser receiver and transmitter.…”

Section: Sheet Metal Thickness Measurement Methodsmentioning

confidence: 99%

On-line Thickness Measurement System for the Metal Spinning Process

Sangkharat¹,

Dechjarern²

2022

IJTech

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Spun-part wall thickness is a key output parameter of spinning products. Thickness affects the spun part strength: Low thickness leads to cracks on spinning products. Hence, it is crucial to measure and control wall thickness. However, thickness measurement and a control system for the spinning process are still offline methods. That is, these parameters must be measured after the spinning process is completed. In this method, the cross section of the spun part is cut, and the wall thickness is measured using a measurement tool. Thus, the measurement system is not applicable as online method. Hence, this study proposed the online thickness measurement method for the spun. Here, the mandrel-less spinning machine and a line laser measurement system were developed. The line laser measurement system, including two sets of line lasers and cameras, was attached on the spinning machine. Both sets of line lasers and cameras were used to measure the thickness profile of the spun part. The first set of a line laser and camera was used to capture the surface profile in the front of the spun part, while the other set was used to capture the surface profile behind the part. Then, the digital image processing (DIP) was estimated the spun thickness by using both images. In the experiments, the spun part was formed by the variation of degrees of angle and spinning distance. In each experiment, the spun-part thickness was measured by the cross-section method and line laser measurement method. Both results were compared and discussed. The result revealed that the thickness estimated by the line laser measurement system is similar to that estimated by the cross-section measurement method. An average error of 3.67% was obtained by the line laser measurement system.

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Section: Sheet Metal Thickness Measurement Methodsmentioning

confidence: 99%

On-line Thickness Measurement System for the Metal Spinning Process

Sangkharat¹,

Dechjarern²

2022

IJTech

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“…The final inner and outer diameter and ovality were also repeatedly were measured off-line at multiple positions using a coordinate measuring machine (O-INSPECT 543, Carl Zeiss, Oberkochen, Germany). The ovality was defined as follows [26]:…”

Section: Methodsmentioning

confidence: 99%

where r is the radius at a given position, N is the total number of positions in one rotation, and μ is the mean radius of the tube.…”

Section: Experimental Methodsmentioning

confidence: 99%

Extrusion Characteristics of Thin Walled Tubes for Catheters Using Thermoplastic Elastomer

Cho

Lee

et al. 2020

Polymers

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As the market for minimally invasive surgery has grown, the demand for high-precision and high-performance catheters has increased. Catheters for the diagnosis and treatment of cardiovascular or cerebrovascular disease mainly use a braided wire tube with a polymer inner liner and outer jacket to improve the pushability and trackability. The outer jacket should have an accurate inner and outer diameter and while maintaining a wall thickness of 150 µm or less. In this study, we designed and manufactured a tip and die capable of extruding an outer jacket with a wall thickness of 150 µm or less using a medical thermoplastic elastomer for manufacturing 8Fr (2.64 mm diameter) thin-walled tubes. The ovality and inner/outer diameters of the tube were studied according to changes in the screw speed (mass flow rate), puller speed, air pressure applied to the lumen, and distance between the quench and head, which are the main variables of microextrusion processes. The screw speed (mass flow rate), puller speed, and air pressure affected the inner/outer diameter of the tube, with screw speed and puller speed having the largest influence on diameter. The air pressure and distance between quench and head had the greatest influence on ovality. The results show the effect of different processing parameters on the characteristics of the extruded tube, which will help to establish a stable extrusion process for the manufacture of outer jackets for braided catheter shafts.

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“…Since the wires are mostly stranded and the surface is relatively rough, when the length of the wire is measured by the non‐contact measurement method, the irradiating beam emitted by the laser will produce reflected beams with different directions and different light intensities on the surface of the wire, so that it is difficult to measure the length of the wire. The collected reflected light is used for precise measurement of line length [16]. In addition, the optical devices required in the non‐contact measurement method are relatively precise and expensive.…”

Section: Design Scheme Of Length Measuring Equipmentmentioning

confidence: 99%

Development of wire length measuring equipment for prefabricated erection of transmission lines

Li¹,

Liu²,

Pan³

et al. 2023

The Journal of Engineering

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The existing prefabricated wireline construction technology is difficult to accurately measure the real-time length of the deployed wires, resulting in too large construction errors and cannot be popularized and applied. To this end, a length measuring device that can accurately measure the length of the wire during the construction of the prefabricated wire is developed. In terms of the hardware of the length measuring equipment, based on the construction characteristics of the prefabricated wiring and the characteristics of the wire, the photoelectric encoder and the STC8G series single-chip microcomputer are used to complete the collection and processing of the wire length data, and the mature and stable LoRa technology is used to complete the wireless transmission of the data. In terms of software program of length measurement equipment, the measurement of wire length data, transmission, and interaction of control command signals are realized by optimizing length measurement scheme, interface development of terminal equipment, and information interaction program design. Finally, according to the actual working conditions of the prefabricated wiring construction, the mechanical structure of the length measuring equipment is designed, and the assembly is completed. The developed length measuring equipment has been successfully applied to practical projects. According to the wire length measuring equipment, the deviation between the observation sag and the design sag after the wire length is measured by the wire length measuring equipment is 2.0%, which meets the design requirement of ±2.5%.

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Real time online profile measurement system for steel wire products

Cited by 4 publications

References 3 publications

On-line Thickness Measurement System for the Metal Spinning Process

On-line Thickness Measurement System for the Metal Spinning Process

Extrusion Characteristics of Thin Walled Tubes for Catheters Using Thermoplastic Elastomer

Development of wire length measuring equipment for prefabricated erection of transmission lines

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