Selected properties of laser cladding coatings shaped using Flow drill technology

Bartkowski, Dariusz; Matysiak, Waldemar; Bartkowska, Aneta

doi:10.1051/matecconf/201713705001

Cited by 3 publications

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, an attempt was made to predict the microstructure resulting from the application of a diode laser, the beam of which influences the surface of the AlSi7Mg alloy sample made in the die-casting mould ( Figure 12 ). This method is used to improve the tribological properties by significantly crumbling the grain in the surface layer and alloying it [ 54 , 55 , 56 , 57 ]. The laser heat treatment process was carried out using a TRUMPF TruDiode 3006 diode laser (TRUMPF, Ditzingen, Germany) with a maximum power of 3 kW.…”

Section: Resultsmentioning

confidence: 99%

Material Databases and Validation in Modelling the Structure of Castings Using the Cellular Automaton Method

et al. 2021

Self Cite

View full text Add to dashboard Cite

The paper presents the scope of applicability and the usefulness of the method of predicting crystalline structure of castings using a commercially available system called Calcosoft CAFE. The influence of individual values of the parameters of the thermal model and the model predicting the structure (phenomenon of nucleation and crystal growth), and the method of interpretation of the results were identified. In simulation studies, it is important to use reliable and validated material database, under appropriate conditions. It is necessary to predict the properties of castings with a comprehensive, new and practical approach to modelling the formation of phase components of structure in terms of both macroscale and microscale phenomena (Multiscale and Multiphysics). Therefore, in this paper, the experimental-simulation validation of the CAFE code was undertaken. The tests were carried out on castings solidifying under various heat transfer conditions controlled by mould materials such as: a homogenous mould made of moulding sand, moulding sand with chill, and mould made of insulating mass with chill. These conditions directly influence the structure formation. The method of validation of the structure was determined in terms of its three parameters, i.e., the degree of refinement of the crystals, the location of the columnar-to-equiaxed transition zone—CET and the angle of the crystals. The above tests enabled to extend the content of databases, which often lack the necessary values of parameters used in modelling, e.g., crystallization of a specific alloy under given conditions (sand casting, chills or laser surface treatment). On this basis, the basics of correlating the simulation results on a micro- and macroscale were generalized, the limits of the application of individual parameters (mould, alloy materials) and their impact on the structure formation were determined. It resulted in the extension of the database for simulation calculations.

show abstract

Section: Resultsmentioning

confidence: 99%

Material Databases and Validation in Modelling the Structure of Castings Using the Cellular Automaton Method

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

Temperature Distribution in Workpiece During Flowdrill - Numerical Experiment Based on Meshless Methods

Uscilowska

2019

Lecture Notes in Mechanical Engineering

View full text Add to dashboard Cite

Production and Properties of FeB-Fe2B-Fe3(B,C) Surface Layers Formed on Tool Steel Using Combination of Diffusion and Laser Processing

Bartkowska¹

2020

Coatings

View full text Add to dashboard Cite

The paper presents the study results of laser remelting diffusion boronized layers produced on CT90 tool steel. A diffusion boronized layer was produced at 950 °C in a powder mixture containing boron carbide as a source of boron. A needle-like microstructure of iron boride was obtained. After diffusion boronizing, the specimens were subjected to laser processing, which was carried out using a diode laser with a nominal power of 3 kW. Three laser beam power values were applied (600, 900, and 1200 W). The aim of the study was to investigate the microstructure, microhardness, chemical, and phase composition as well as the wear and corrosion resistance of newly formed FeB-Fe2B-Fe3(B,C) layers. As a result of the laser beam interaction, the needle-like borides occurring in the subsurface zone were remelted, and three characteristic areas were obtained: the remelted zone, the heat-affected zone, and the substrate. The properties of newly formed layers have improved in comparison to diffusion boronized layers (except for corrosion resistance). It should be noted that using the highest laser beam power contributed to a slight reduction in wear resistance. Both the reduced corrosion and wear resistance were caused by greater remelting of the steel substrate and thus by the increased iron content in the formed layer.

show abstract

Selected properties of laser cladding coatings shaped using Flow drill technology

Cited by 3 publications

References 14 publications

Material Databases and Validation in Modelling the Structure of Castings Using the Cellular Automaton Method

Material Databases and Validation in Modelling the Structure of Castings Using the Cellular Automaton Method

Temperature Distribution in Workpiece During Flowdrill - Numerical Experiment Based on Meshless Methods

Production and Properties of FeB-Fe2B-Fe3(B,C) Surface Layers Formed on Tool Steel Using Combination of Diffusion and Laser Processing

Contact Info

Product

Resources

About