Results 1 to 10 of about 2,788 (256)
The mechanism and performance of rock breakage by undercutting disc cutter with advanced slotting [PDF]
Scientific Reports, 2023 To study the mechanism and performance of rock breakage by an undercutting disc cutter with advanced slotting, a three-dimensional numerical model of rock cutting by a disc cutter with advanced slotting assistance was established based on the discrete ...
Hongxiang Jiang +4 more
doaj +4 more sources
Measurement of TBM Disc Cutter Wear Using Eddy-Current Sensor in Different TBM Chamber Conditions: Insights from Laboratory Tests [PDF]
SensorsThe TBM disc cutter, which is the main cutting tool of tunnel boring machines (TBMs), is replaced when it is excessively worn during the boring process.
Minsung Park +3 more
doaj +2 more sources
Study on Cutting Chip in Milling GH4169 with Indexable Disc Cutter. [PDF]
Materials (Basel), 2021 The study and control for chip have a significant impact on machining quality and productivity. In this paper, GH4169 was cut with an indexable disc milling cutter. The chips corresponding to each group of cutting parameters were collected, and the chip parameters (chip curl radius, chip thickness deformation coefficient, and chip width deformation ...
Li G, Xian C, Xin H.
europepmc +4 more sources
Optimum Design and Application Research of Eddy Current Sensor for Measurement of TBM Disc Cutter Wear [PDF]
Sensors, 2019 In view of the fact that the mature eddy current sensors on the market have a small measuring range and a certain requirement for the measured conductor area, which cannot meet the requirement of TBM disc cutter Wear monitoring, Ansoft Maxwell simulation
Fei Wang +3 more
doaj +2 more sources
Pose Determination of the Disc Cutter Holder of Shield Machine Based on Monocular Vision [PDF]
Sensors, 2022 The visual measurement system plays a vital role in the disc cutter changing robot of the shield machine, and its accuracy directly determines the success rate of the disc cutter grasping.
Dandan Peng +6 more
doaj +2 more sources
A high-precision segmentation method based on UNet for disc cutter holder of shield machine [PDF]
Scientific ReportsVisual positioning plays a pivotal role in enabling robotic disc cutter replacement for the shield machine. However, underground operational challenges—including low illumination, high dust concentrations, and irregular sand deposition on the surface of ...
Dandan Peng, Guoli Zhu, Zhe Xie
doaj +2 more sources
Journal of Rock Mechanics and Geotechnical EngineeringLarge portions of the tunnel boring machine (TBM) construction cost are attributed to disc cutter consumption, and assessing the disc cutter's wear level can help determine the optimal time to replace the disc cutter.
Raheb Bagherpour, Seyed Hadi Hoseinie
exaly +3 more sources
KSCE Journal of Civil Engineering, 2019 The arrangement of disc cutter on a cutter head is important to improve the performance of TBM (tunnel boring machine) cutter, cutter life and cutter disc bearing life, then reduce vibration of TBM and reduce the noise. The rock breaking with double disc cutters is the basis of study on the distribution of disc cutter on cutter head, and it plays an ...
, Defang Zou
exaly +2 more sources
Advances in Civil Engineering, 2022 Rock-breaking efficiency of full-face rock tunnel boring machine (TBM) is closely related to the performance of the disc cutter and the characteristics of the rock mass.
Qinglong Zhang +5 more
doaj +1 more source
Main Parameter Design of Disc Milling Cutter for Machining Equal-Base Circle Bevel Gear
Shock and Vibration, 2022 According to the theory and machining principle with disc milling cutter of the equal-base circle bevel gear, the mathematical model of disc milling cutter is established, the principle of machining equal-base circle bevel gear with disc milling cutter ...
Bin Wang +4 more
doaj +1 more source