Purpose of the development: The development is intended to increase the rigidity of structures made of thin-sheet metal materials.

Recommended application field: Mechanical engineering, instrument making, etc.

Advantages over analogues: The developed method of influencing the stress state of a structure allows, depending on the priority, to increase at least twice its rigidity or the value of permissible loads, and reduce the material consumption of the product.

The development stage readiness: The working documentation is developed

Description of the development:
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The desire to save material and energy resources, reduce weight, size, labor intensity and cost of goods promotes the spread of the use of thin sheet metal materials in their manufacture. Examples of such products can be given a lot - from the body of the car, the body of the device, the antenna of the spacecraft to the bodies of cut-off diamond circles. The main factor that significantly limits the scope of such designs is their rigidity. To increase this characteristic, various methods are used. First of all, these are constructive methods, based on the relationship between the geometric parameters of the product and its rigidity. Increase the rigidity of the construction can be by creating in it closed cavities, the manufacture of stiffeners, edging, thickening, etc. The main disadvantage of such methods is the increase in the dimensions and weight of the structure. It is known that laser heating makes it possible to create local zones in metal materials, the structure, hardness and stress state of which will differ significantly from the base. In this case, the size, shape, the law of location of such zones over the surface is easy to control, changing the trajectory of the beam and the heating parameters. In fact, it becomes possible, with the help of laser irradiation, to create metallurgical stiffeners in metallic materials. The main idea of this work is the creation of residual stresses in metal materials in strictly defined areas of this design, equal in magnitude and opposite in sign to the maximum elastic stresses that arise in these areas under the influence of workloads caused by the work of the part in the product in operation.

corresponds technical description
Reguires revision

Possibility of transfer abroad:
Licence's sale
Combinated reduction to industrial level

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua