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561
FAILURE MODES AND EFFECTS ANALYSIS (FMEA) ON TRACK INFRASTRUCTURE INTEGRITY ASSESSMENT
Published 2024-12-01“…Based on the analysis, the failure mode with the highest Risk Priority Number (RPN) is the cracked rail on the welding/fish plate joint with a value of 280, while the failure mode with the lowest RPN is the loose rail with a value of 108. …”
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562
Study of Manufacturing Process of Holes in Aeroengine Heat Shield
Published 2019-01-01“…The nickel-based superalloy GH3128 with high plasticity, high long-lasting creep strength, good resistance to oxidation and stamping, and good welding performance is widely used in aircraft engine heat shields. …”
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563
Fatigue loading characteristic for the composite steel-concrete beams
Published 2020-12-01“…Hence, in this study we have focused on several factors affecting mode of failure of these beams under the fatigue loads, and the common element in all stages of failure was the shear stud, specifically the welding collar at the base of this stud as it is a structurally weak region.…”
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564
Quantitative efficiency of optoacoustic ultrasonic treatment in SLM, DED, and LBW applications
Published 2025-01-01“…Abstract Ultrasound can improve the quality of finished products by reducing porosity and enhancing microstructure in selective laser melting, directed energy deposition, and laser beam welding. This study evaluates the efficiency of ultrasound produced by a pulsed laser via the optoacoustic effect. …”
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565
Experimental Study on Fatigue Performance of Negative Bending Moment of Steel-Concrete Continuous Composite Box Girder
Published 2020-01-01“…The results showed that the fatigue resistance performance of concrete slab with low reinforcement ratio was much lower than that of concrete slab with high reinforcement ratio whereas, under the fatigue load, the stress of the welding nail in the negative moment region was small and the slip was almost negligible. …”
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566
Spot Lap Joining of Titanium G2 to Nylon 6 by Nylon Extrusion via Friction Forming Technique
Published 2021-12-01“… To join sheets of commercial pure titanium grade 2 and nylon 6 polymer, friction lap spot welding (FLSW) was proposed. The titanium sheets were drilled to create a 3.5mm diameter hole, which was then threaded with M4. …”
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567
A Novel Approach for Detection of Cyber Attacks in MQTT-Based IIoT Systems Using Machine Learning Techniques
Published 2024-12-01“…The widely accepted Message Queuing Telemetry Transport (MQTT) protocol, with its structure that meets the needs of welding-oriented devices in IoT and IIoT applications, is a prime example. …”
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568
MICROSTRUCTURE AND PROPERTIES OF RESISTANCE SPOT BRAZING JOINT OF ULTRA-THIN AUSTENITIC STAINLESS STEEL
Published 2022-01-01“…The results show that the resistance spot brazing joint is composed of the brazing zone, the thermomechanical affected zone and the base material; With the increase of welding current and electrode pressure, the thickness of the brazing zone decreases and the dynamic recrystallization degree of the thermomechanical affected zone increases; The high cooling rate inhibits the element diffusion between the brazing joint and the base metal, the phases of the brazing joint are nickel based solid solution and dispersively distributed fine Cr<sub>2</sub>B and Ni<sub>3</sub>B particles, the maximum shear resistance of the joint is 118.3 N; The maximum load pressure of the package element reaches 0.53 MPa, which indicates that the resistance spot brazing joint of ultra-thin austenitic stainless steel has excellent air tightness.…”
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569
Robot Calibration for Cooperative Process under Typical Installation
Published 2014-01-01“…The calibration errors are less than 8 mm in most cases, which satisfies the requirement of positioning accuracy for most industrial process, such as arc welding, transporting, and cutting. These experiment results assert the correctness of our method which can be used effectively to solve the base frame calibration problem for cooperative robots in manufacturing process.…”
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570
STATIC AND DYNAMIC CHARACTERISTICS ANALYSIS AND OPTIMIZATION OF ELECTRIC WHEEL DUMP TRUCK FRAME
Published 2020-01-01“…In order to analysis static and dynamic characteristics of a certain type electric wheel dump truck frame,the load information of key bearing connection sites of the fame was obtained by the rigid and flexible coupling multi-body dynamics analysis for the whole vehicle and the finite element model of the frame with welding details was constructed simultaneously.Then,the static analysis of the frame on the condition of static state with full load was carried out and its correctness was verified by using stress test on the mine road surface. …”
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571
Microcontroller-Based Direct Torque Control Servodrive
Published 2020-01-01“…Robot technology has become an integral part of the automotive industry in several tasks such as material handling, welding, painting, and part assembly. Therefore, the knowledge and skills to control the electric motors in these manipulators are essential for undergraduate electrical engineering students. …”
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572
RESEARCH ON SHUTDOWN STRESS AND FATIGUE LIFE OF AIR CONDITIONING PIPING
Published 2021-01-01“…The results show that: The piping will be subjected to 2 ~ 3 stress shocks at the shutdown moment,the average number of shocks is 2. 6 times; The first impact stress is the largest,and the subsequent impact stress attenuates slightly;Vibration table and counterweight block can be used to generate stable stress impact,which can reach millions of times in a short time,and the component fatigue can be verified quickly; Piping bending will reduce the piping fatigue life,the operating pressure and temperature have little influence on pipe fatigue life,welding has little influence on piping,since there is a distance between the welded part and the bent part; In order to ensure the piping reliability under the limit state,the piping shutdown stress should be below 62 MPa.…”
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573
Research of stress distribution in the cross-section of a bimetallic perforated plate perpendicularly loaded with concentrated force
Published 2020-12-01“…The paper presents the stress distribution along the plate thickness in a bimetallic steel – titanium circular, axially symmetrical perforated plate produced in the technological process of explosion welding. The steel layer is the layer that transfers the load in the plate, while the titanium layer is used to improve the properties of the plate, e.g. corrosion resistance, thermal transmittance, etc. in the plate. …”
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574
Effects of layer arrangement, pin size, polyurethane thickness, and polyurethane hardness on forming limits of Al/Cu bimetallic sheets through multi-point forming process
Published 2025-01-01“…This study experimentally evaluated the forming limit diagram (FLD) of Al/Cu bimetallic sheets fabricated using explosive welding in multi-point forming. The results showed that the forming limit was greater in multi-point forming than in the Nakazima test. …”
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575
Automated synthesis of technological fixture constructions
Published 2019-12-01“…There is another type of such equipment – fixtures for locating and clamping parts on the technological operations of assembly, welding, cutting, etc. Automated synthesis of fixtures is considered in this article. …”
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576
Ductile damage evolution law for proportional and non-proportional loading conditions
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577
Thermal effects of AISI 304-L stainless steel after laser irradiation
Published 2023-12-01“… Laser Directed Energy Deposition (L-DED) is one of the Additive Manufacturing (AM) techniques that has emerged in recent years, and it is one of the disruptive technologies of the Industry 4.0. The selection of welding parameters of the L-DED system is critical for obtaining the desired results in metal deposition, however, due to its intrinsic nonlinear behavior in the process, the suitable choices need to be investigated. …”
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578
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579
ANALYST STUDY AND OPTIMIZATION OF LIGHT TRUCK CAB FLOOR STRENGTH
Published 2021-01-01“…Finally,on the basis of experiments and theoretical analysis,this paper proposes two structural strength optimization measures,including strengthening plates and welding seams,and adding structural adhesive,and conducts comparative analysis in various aspects to provide a reference for the subsequent engineering structure optimization and strength analysis.…”
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580
Critical crack path assessments in failure investigations
Published 2015-10-01“…The longitudinal seam of the segment that ruptured was supposed to have been fabricated by double submerged arc welding. Unfortunately, portions of the segment only received a single submerged arc weld on the outside, leaving unwelded areas on the inside diameter. …”
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