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541
FRACTURE ANALYSIS AND IMPROVEMENT OF EGR COOLER WITH ECCENTRIC INTAKE STRUCTURE
Published 2021-01-01“…Aiming at welding fracture problem of EGR cooler with eccentric intake structure,numerical simulation based on sequential fluid-solid coupling was presented and the improvement of eccentric intake structure was taken. …”
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542
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543
Mechanical Strengthening of Lightweight Aluminium Alloys through Friction Stir Process
Published 2022-01-01“…The aerospace industries are focused on lightweighting with alloys having good tensile strength, fracture toughness, fatigue resistance, and corrosion resistance. The friction stir welding technology is one of the productive techniques in the aerospace industry to join such alloys with little ease. …”
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544
The Spot Weldability of Carbon Steel Sheet
Published 2013-01-01“…The welding parameters such as weld current and weld time have been investigated. …”
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545
SIMULATION ANALYSIS OF THE VOID LOCATION DURING THE ELECTROMIGRATION BASED ON ATOMIC CONCENTRATION
Published 2020-01-01“…This method is applied to interconnect lead structure and interconnect welding ball structure,respectively. And the accuracy and reliability of this method are verified by comparing experimental phenomena,which provides a precise prediction method for the reliability analysis of integrated circuit design.…”
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546
Microstructure and properties degradation of P/T 91, 92 steels weldments in creep conditions
Published 2012-01-01“…The studies were performed on dissimilar ferritic/austenitic weldments between 9Cr tempered martensitic steels of the grades either P/T 91 or 92 and unstabilised AISI316H austenitic steel. The welded joints were fabricated using the fusion welding by tungsten inert gas (TIG) method with Ni-based filler metal. …”
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547
DIRECT MANUFACTURING OF METAL PARTS USING LOM-TECHNOLOGY
Published 2018-04-01“…The possibilities of juncture sheet stacked metals by welding and soldering were demonstrated experimentally.…”
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548
Optimal Design of 35T Drive Axle Housing Assembly based on Abaqus
Published 2022-05-01“…In the process of use,there are some faults,such as shaft head ring seam welding crack,body square to round transition section fracture and body reinforcement crack,which are confirmed by Abaqus finite element analysis to be caused by insufficient strength of axle housing. …”
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549
STUDY ON CRITICAL CTOD OF BIG-THICKNESS AND HIGH-STRENGTH STEELS
Published 2015-01-01“…As one of the essential criteria of assessment to welding toughness,CTOD( Crack tip opening displacement) is widely applied in engineering.The research on critical CTOD of big thickness and high strength steels has been a hot issue,therefore the theoretical research in China lags behind its overseas.The present paper takes the single edge fatigue precrack of CTOD specimen as a flaw based on the technical route of the British Standard 7910-2005,which is "Guide to methods for assessing the acceptability of flaws in metallic structures".In the meanwhile,make the grading assessments of the HAZ of the60 mm thick EQ70 steel welded joints,combining the results of the CTOD tests.The CGHAZ microstructures of EQ70 steel welded joints has been analyzed by SEM.The assessments on welded joints of EQ70 show that the CTOD values are in the acceptable range.And there are some fine microstructures good for the toughness of the welded joint.This method provides a useful guidance in researches of critical CTOD.…”
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550
DEDICATED CNC MILLING STRATEGIES FOR COMPLEX SURFACES
Published 2023-05-01“…This mean that we have high cutting temperature in manufacturing area, high stress close to the edge, tendency to deflection of the cutting tools, adhesion, and welding materials on the cutting edge. To control all these negative influences, we need dedicated cutting tools, with high cutting parameters and innovative milling strategies. …”
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551
The interface between metallurgy and mechanics in material performance
Published 2010-10-01“…The interface has particular importance in circumstances where environmental influences have a key role in determining performance characteristics (e.g. creep, environmentally-assisted cracking, or corrosion), where performance is dominated by fatigue or fracture, where welding is used to join components, or where tribology plays a role. …”
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552
Experimental analysis of the state of stress in a steel – titanium perforated plate loaded with concentrated force
Published 2020-12-01“…The paper presents an experimental analysis of the state of stress, free supported on the edge of a steel – titanium circular perforated plate loaded with a centrally concentrated force, created in the technological process of explosion welding. For this purpose, a special test stand was designed and a methodology for testing the perforated plate was developed. …”
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553
Herbert Hoover and the Organization of the American Relief Effort in Poland (1919-1923)
Published 2009-09-01“…Poland, recreated after the armistice of 1918, was confronted at its rebirth with four very severe challenges: welding together the separate sections of the dissected country, which for many decades had been under the rule of Prussia-Germany, Austria and Russia; creating a functioning administration and military force for the country; ensuring the recovery of agriculture, which, during World War I, had seriously declined; and restarting industries destroyed or closed during foreign military occupation. …”
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554
Web post-buckling strength of thin-webbed cellular beams using carbon PFRP profiles
Published 2022-04-01“…The aim of this paper is to investigate the effectiveness of using externally bonded pultruded carbon fiber (CFRP) profiles for the strengthening of web post-buckling in thin webbed cellular beams as an alternative to the typical welding technique of reinforcement. A proposed numerical model created with the finite element software ABAQUS capable of capturing the de-bonding and fracture along the adhesive layer between steel and CFRP has been validated using published experimental results.…”
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555
Manipulator Trajectory Planning based on ADPSO Algorithm
Published 2022-05-01“…The working path of welding manipulator is complex,which requires high smoothness of the planning trajectory,and the planning trajectory needs to meet the kinematics constraints of each joint. …”
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556
Studio delle prestazioni di giunzioni incollate ibride (Strength evaluation of structural hybrid bonded joints)
Published 2013-04-01“…In this work hybrid joints consist in joints produced with two different kinds of joining techniques: one of them being adhesive bonding and the other being one among Resistance Spot Welding, Pop Riveting, Clinching, Self Piercing Riveting. …”
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557
ANALYSIS OF THE CONSTRUCTION OF THE CAR TRAILER FRAME IN TERMS OF CHANGING THE ASSEMBLY TECHNOLOGY
Published 2024-09-01“…However, the most suitable method of assembly is welding, as it allows the use of standard profiles.…”
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558
AUTOMOBILE CRASH BOX IMPROVEMENT AND FORMING ANALYSIS FOR TUBE HYDROFORMING
Published 2017-01-01“…The automobile crash box is an important buffering and absorbing energy structure.Due to the advantages of light weight,high stiffness,high strength and good crashworthiness for hydroforming tubular,the hydroforming crash box is designed instead of the stamping and welding structure.By numerical simulation,analysis the crash box key energy absorption properties,comparison of tube hydroforming crash box and stamping one absorbing performance.Design the load-curves for Tube Hydroforming automobile crash box,which is influence the crash box thickness distribution after forming.In this paper,maximizing of the minimum wall thickness of crash box after hydroforming is used as the research object,select the pressure control parameter on the load-curves as design variables,using fractional factorial designed experiment,then use of Kriging spatial interpolation method to build approximation model,Finally,the use of genetic algorithm to obtain the optimized loadcurves,increasing the minimum wall thickness of crash box after hydroforming.…”
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559
Uniformity of thickness of metal sheets by patchwork blanks: potential of adhesive bonding
Published 2020-07-01“…In this work, which deals with the method for adding material, an innovative methodology has been proposed as an alternative to the welding process. Specifically, the methodology is based on the bonding of a patch (before the deformation process), on the base plate with a constant thickness, in the area that most suffers from the thinning caused by the forming process. …”
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560
LEAKAGE FAILURE ANALYSIS OF TUBE BUNDLE CONNECTION OF FLUE GAS WASTE HEAT RECOVERY DEVICE (MT)
Published 2023-01-01“…Firstly, the stress level of the waste heat recovery device under working condition was calculated by Ansys simulation software, and the maximum stress point was found at the tube sheet, and the stress value at the joint of tube sheet and heat exchange tube was larger.Then, macro-corrosion morphology analysis, metallographic microstructure analysis, micro-hardness test, scanning electron microscope(SEM) analysis of corrosion micro-morphology and EDS micro-area composition analysis of corrosion products were carried out on the sampling site of tube bundle leakage.The results show that, because of high temperature, increasing alkali concentration occurs at the crack of tube bundle. And welding cracks exist there, which eventually leads to alkali stress corrosion cracking at the weld of tube sheet and tube bundle.…”
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