Примери за използване на Residual stress на Английски и техните преводи на Български
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Formability of thin film residual stress.
The residual stress inside the part is basically eliminated;
By heat treatment Release residual stress;
Due to the influence of residual stress on SLM forming, Chen Dening et al.
If the part shape by cold pressure inside accumulate residual stresses.
The residual stress is mainly due to the large temperature gradient in the molten pool.
In this case, the appearance of residual stresses is almost minimal.
If a detail is formed by cold pressure,there are cumulated residual stresses.
To remove the residual stress, a little shake hands, and the hands are rotated in a clockwise direction and vice versa.
Finally, the parts are thermally treated to eliminate any residual stresses.
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Investigation and measurement of temporary and residual stresses in welded and other constructions.
Therefore, it is easy to crack along grain boundary under the action of welding residual stress.
Such a defect reduces the real cross-section of the weld and leads to residual stresses, which can cause subsequent cracking and destruction of the metal.
The larger the section size of the general section steel is,the greater the residual stress is.
The main methods of residual stress are: 1 adjusting the processing technology, controlling the size of the molten pool, so that the heat can be dissipated faster;
For substrates with high yield strength such as titanium rods, it is generally required to avoid high residual stresses.
The residual stress is the internal self-phase equilibrium stress without external force, and the hot rolled section steel with all kinds of sections has this kind of residual stress. .
It can also beused for surface matting, descaling and eliminating residual stress of casting, forging and weldments.
The consequence is an improvement of stainless steel tensile properties, in particular traction and elongation,with an increase of plasticity and a decrease of residual stress.
Disadvantages: 1 Although there is no thermal plasticity compression in the forming process, there is still residual stress in the section, which inevitably affects the overall and local buckling characteristics of steel.
In a wide temperature range(850~ 1150℃), TZM alloy in response to the initial stage, the macroscopic stress after heating temperature although most can be removed,and the microscopic residual stress remains.
He studies the problems of the mechanics of the coatings, the mechanical characteristics of the coatings(modulus of elasticity,adhesion and cohesion, residual stresses) and researches the stressed state of the system base-coating by analytical and numerical methods.
After consolidation of the explosion,there was an obvious gradient material residual stress prone to delamination between the layers, therefore, for such as copper molybdenum alloy, W/ Cu consolidation and other hard materials, in explosive consolidation are necessary after to stress annealing.
Initially observed micron-scale pores are the main cause of fatigue strength, where residual stress increases fatigue crack growth.
Cylinder in the process of mechanical processing or after welding caused by stress, but not the cylinder to be tempered to eliminate,Customize Gaskets resulting in the cylinder there is a large residual stress, in the operation of a permanent deformation.
The cause of the stress corrosion cracking is mainly the welding stress, especially the stress source caused by the residual stress caused by the repair welding and the structural stress generated during the manufacture of the equipment.
Welding process must be in accordance with the order of the construction,4 can not produce a large welding residual stress and residual deformation.
Aging treatment can be divided into natural and artificial ageing two natural aging is the casting is placed in the open area for more than half a year, then slowly occurs,thereby the residual stress eliminating or reducing artificial aging is heated casting to 550 to 650 DEG C for stress relief annealing, it than natural aging save time, residual stress could be removed more thoroughly?
It's a similar principle to shot peening, a method that has been used for decades to harden metal components for improved fatigue strength and damage tolerance,however laser peening imparts residual stresses much deeper and can improve metal fatigue strength by ten times or more.