Abstract
Residual stresses significantly affect the overall lifetime of constructions. The main disadvantage of residual stresses is that their effect and magnitude is not evident at first sight and can only be reliably determined using experimental methods. The experiment aimed to find out how much the cladding technology affects the residual stresses within the renovation of high pressure die casting molds. A total of four samples were prepared by different cladding techniques and with varying thicknesses of the result layer. The samples were then annealed and mechanically treated. Finally, the hole drilling method was applied to determine the residual stresses in the samples. The results point to more significant differences in the levels of residual stresses, which were determined in the subsurface layers.
Highlights
Stresses within the Renovation ofHigh Pressure Die Casting (HDPC) is a technological process widely used to produce complex aluminium castings, mainly associated with the automotive industry
The cause is either the chemidetermined on the samples prepared in this way by the hole drilling method, which is one gradual peeling of particles from the surface of the molds, which is documented in calthe interaction alloy and theand metal the extensive infiltrationexperience of alumiof semi-destructive experimental methods, the matrix authorsorhave sources
Residual stresses on the prepared samples were determined using the hole drilling method
Summary
High Pressure Die Casting (HDPC) is a technological process widely used to produce complex aluminium castings, mainly associated with the automotive industry. The metal matrix or the infiltration of alumian experimental analysis of different cladding technum The into submitted the surfacearticle of thepresents matrix through cracks caused by cyclic thermal stress Such niques used to renovate the functional surfaces of molds high pressure die casting of Figure 2. The cause is either the chemidetermined on the samples prepared in this way by the hole drilling method, which is one gradual peeling of particles from the surface of the molds, which is documented in calthe interaction alloy and theand metal the extensive infiltrationexperience of alumiof semi-destructive experimental methods, the matrix authorsorhave sources [5,6,7,8]. Residual stress levels were determined on the samples prepared in this way by the hole drilling method, which is one of the semi-destructive experimental methods, and the authors have extensive experience with it [13,14,15,16]
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