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Concrete testing machine

open access: yesMateriales de Construccion, 1950
No ...
Anónimo
doaj   +2 more sources

Research on a new high-quality and high-efficiency SLM forming method based on interlayer strategy [PDF]

open access: yesMATEC Web of Conferences, 2022
To ensure the forming quality of SLM and to improve the forming efficiency of SLM, this paper investigates the forming effect of Ti6Al4V specimens formed by SLM based on an interlayer strategy.
Wang Peng, Chen Dongju, Li Gang
doaj   +1 more source

Radial Error Motion Measurement and Its Uncertainty Estimation of Ultra Precision Axes of Rotation with Nanometer Level Precision

open access: yesMicromachines, 2022
The radial error is the key performance indicator of ultra-precision axis. In order to measure and evaluate the radial error of ultra-precision axis with nanometer accuracy, a measurement system with an accuracy of nanometer based on capacitive ...
Xingbao Liu   +5 more
doaj   +1 more source

Tangential elastic contact model of the cylindrical contact with different axis crossing angles

open access: yesScience Progress, 2022
In this paper, a cylinder contact model with different axis crossing angles is proposed, and the axis crossing angle is introduced into the normal and tangential constitutive equations.
Tieneng Guo   +3 more
doaj   +1 more source

Structural FEM Analyses of a Landing Gear Testing Machine

open access: yesMetals, 2022
The “Electro-mechanical Landing gear system Integration for Small Aircraft” (E-LISA) research project has the objective of developing an innovative “iron bird”, a testing facility dedicated to executing tests on an innovative landing gear of a small ...
Venanzio Giannella   +4 more
doaj   +1 more source

Biaxial testing of metal samples on testing machines with one load axis [PDF]

open access: yesОмский научный вестник, 2020
The necessity of experimental studies to assess the growth rate of fatigue cracks under biaxial loading is substantiated. An overview of testing machines for biaxial testing of metal samples, devices and fixtures used to ensure biaxial loading is made.
K. A. Vansovich, V. I. Yadrov
doaj   +1 more source

Development of a Multi-Sensor Concept for Real-Time Temperature Measurement at the Cutting Insert of a Single-Lip Deep Hole Drilling Tool

open access: yesApplied Sciences, 2022
The mechanical energy resulting from cutting processes is turned almost completely in thermal energy, which encourages thermal procedures, such as diffusion, leading to higher wear in the cutting tool and thus to higher temperatures.
Johannes Ramme   +4 more
doaj   +1 more source

An investigation on the suitability of modern nondestructive testing methods for the inspection of specimens manufactured by laser powder bed fusion

open access: yesSN Applied Sciences, 2021
Laser powder bed fusion (L-PBF) is increasingly used to fabricate functional parts used in safety-relevant applications. To ensure that the sophisticated part specifications are achieved, 100% quality inspections are performed subsequent to the buildup ...
Cara G. Kolb   +10 more
doaj   +1 more source

Characterization and Evaluation of Rotation Accuracy of Hydrostatic Spindle under the Influence of Unbalance

open access: yesShock and Vibration, 2020
The paper studies the characterization and evaluation technology of rotation accuracy of hydrostatic spindle under the influence of unbalance. The dynamic model of the motion error of the hydrostatic spindle is established based on the dynamic parameters.
Dongju Chen, You Zhao, Jingfang Liu
doaj   +1 more source

Research on the dynamic identification method of weak parts in cantilever structures

open access: yesScience Progress, 2021
Determining the weak parts of a structure is one of the key issues in the field of machine tool stiffness improvement. However, studies show that overcoming the static deformation with acquisition difficulty is a complex problem in practical structures ...
Tieneng Guo   +4 more
doaj   +1 more source

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