Hardness of the near-weld zone during contact spot welding of steels using an adhesive–weld technology

Konoplin, A. Yu.; Baurova, N. I.

doi:10.1134/s0036029516130097

Cited by 32 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polymer composites based on fibred carbon materials and epoxy resins are widelyused in the production of rocket-space engineering, the aircraft industry, mechanical engineering, in the production of road and construction machines, etc. [1][2][3][4].They are used in the manufacture of structural elements, which require a combination of high strength, rigidity, durability and minimum weight [5][6][7][8][9].Currently, in the manufacture of parts from carbon fiber reinforced plastics, prepreg technologies and methods of direct molding are used [10][11][12].The principle of direct molding methods is that the process of impregnating the reinforcing compound and the molding processof the partare combined into a single technological operation.This leads not only to a reduction in the duration of part manufacture, but also to a reduction in energy and labor costs and, as a consequence, reduce the cost of technology.Direct molding methods include: vacuum infusion, resin transfer molding (RTM), resin film infusion, etc.…”

Section: Introductionmentioning

confidence: 99%

Calculation of the Thermal Stress when Subjected to an Electric Current on Glass and Carbon Fibers with Copper Coatings

2021

View full text Add to dashboard Cite

Two types of fibers (carbon and glass) are considered, as an object of research, on the surface of which a copper coating is applied with a thickness of 100 nm using magnetron sputtering technology. A finite element model of a coated fiber was built and simulated in the COMSOL Multiphysics software. As a result of the calculations, the values of the temperatures, arising during the passage of electric current on the surface of the fibers and copper coating, have been determined. This calculation makes it possible to simulate the thermal heating modes occurring in parts of fiberglass and carbon fiber reinforced plastics in the process of curing. As a result of calculations, it was found that copper coating significantly improves electrical conductivity, which is especially important for glass fibers, since its conductivity is considerably lower than carbon. The use of copper coating in the production of parts from fiberglass allows to regulate their thermophysical properties within a wide range.

show abstract

Section: Introductionmentioning

confidence: 99%

Calculation of the Thermal Stress when Subjected to an Electric Current on Glass and Carbon Fibers with Copper Coatings

2021

View full text Add to dashboard Cite

show abstract

“…The nomenclature of technological operations when performing repairs of machine parts using polymer composite materials in conditions of negative temperatures is standard. However, in most technological operations there is a significant reduction in the range of materials, devices and equipment [9].…”

Section: Introductionmentioning

confidence: 99%

Development of Construction and Repair Materials Used in Transport and Technological Machines Operating in the Arctic

et al. 2021

View full text Add to dashboard Cite

Increasing the pace of development of the Arctic zone, among other tasks, requires the attraction of significant production resources to improve the transport network, in particular, road construction equipment and technological equipment. Extreme climatic conditions, including low air temperatures and strong winds, are features of the Arctic zone. In this regard, there is a need to form a methodological basis for the development of construction and repair materials for use in the Arctic. To solve this problem, based on the results of mechanical tests at temperatures of +20°C, -30°C and -50°C, the possibility of using carbon fiber plastics with various types of hybrid matrices for the manufacture of mechanical engineering products operating in extreme conditions of the Arctic and the creation of reinforcing linings during their repair. The indicators of manufacturability during repairs under the conditions of constant exposure to negative temperatures using polymeric materials are considered.

show abstract

“…Composite Materials are becoming more popular gradually replacing traditional materials with extra strength, lighter weight, and thermal properties [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Many composites' industries are exploring the use of fiber-reinforced composites in all applications which includes aerospace, automotive and water transport, construction industry, toys, instrumentation, medicine, etc.…”

Section: Introductionmentioning

confidence: 99%

Research of Kinetic Impregnation Process Based on the Structure of Reinforcing Filler

2021

View full text Add to dashboard Cite

The present work studies the impregnation process through a carbon-fiber-reinforced plastic (CFRP) during the resin injection filling stage of a vacuum infusion process by using simulation software PAM-RTM. Our work aims to study the resin injection time of carbon fabric composite laminate based on the type of weaving fabrics, permeability and porosity of reinforced fabric and to define the optimal structure of reinforced fabric based on simulation and experimental results. The resin infusion method procured from simulation and experimental results can effectively avoid the high cost caused by the trial-and-error method.

show abstract

Hardness of the near-weld zone during contact spot welding of steels using an adhesive–weld technology

Cited by 32 publications

References 5 publications

Calculation of the Thermal Stress when Subjected to an Electric Current on Glass and Carbon Fibers with Copper Coatings

Calculation of the Thermal Stress when Subjected to an Electric Current on Glass and Carbon Fibers with Copper Coatings

Development of Construction and Repair Materials Used in Transport and Technological Machines Operating in the Arctic

Research of Kinetic Impregnation Process Based on the Structure of Reinforcing Filler

Contact Info

Product

Resources

About