EVALUATION OF FORMABILITY OF THIN SHEETS BASED ON Al-Mg-Si FOR AUTOMOTIVE INDUSTRY

Abstract

In this paper is evaluated workability of rolled aluminium alloy based AIMgSi. Static tension test was used for obtained the mechanical properties, such as tensile strength, yield strength, elongation, the strain hardening exponent and coefficient of surface anisotropy. Rolled samples used for a tensile test were taken in three different directions, namely in the direction of rolling, in 45 ° and 90° direction. The result is an consideration of suitability of the material for stamping technology. For measurement of the elongation, variations in thickness and width in real-time was used method called videoextensometry. To obtain deforming maps and left side of forming limit diagrams (FLD) was applied digital correlation method (DIC).

Microdeformation Processes in Soft Magnetic Compounds

“…This is represented by a decrease in the impact energy values and low macrodeformation characteristics. Low values of the TRS underline insufficient development of interparticle bonding during heat treatment, the pores and other internal defects [11][12][13] developed in the consolidation are detrimental to the mechanical properties. It is well-known that strengthening is attributed to the pile-up of dislocations at grain boundaries acting as efficient barriers to dislocation motion.…”

HOT COMPRESSION TEST OF 9 Cr-1 Mo STEEL – NUMERICAL SIMULATION

“…Numerical simulations were calculated for this type of material in software Deform 3D. According to [13][14][15][21][22][23] it was designed five types of samples, as it is given at Fig. 2.…”

Quasistatic Strain Rates’ Effect to the Properties of Advanced Steels for Automotive Industry

“…Most of the simulation software use constitutive material models by Hollomon, Ludwik, Swift, Voce, Krupkowski-Swift [9,10] to define material stress-strain behaviour when deformed at static strain rates conditions. For middle and higher strain rates following constitutive material models are used [11,12]: -Hollomon:…”