PT - JOURNAL ARTICLE AU - Cidlina, Jan AU - Müller, Miroslav TI - Influence of Adhesive Bonded Surface Treatment of Alloy Alcu4mg and Increased Environmental Temperature on Adhesive Bond Strength DP - 2015 Sep 1 TA - Manufacturing Technology Journal PG - 520--526 VI - 15 IP - 4 AID - 10.21062/ujep/x.2015/a/1213-2489/MT/15/4/520 IS - 12132489 AB - For the creation of the bond the treatment of the adhesive bonded surface is essential. The second important factor is the temperature of the environment to which the adhesive bond is exposed. It is a way of a degradation of adhesive bonds. The aim of the research was to evaluate the effect of adhesive bonded surface treatment of alloy AlCu4Mg and increased environmental temperature on a strength of adhesive bonds using two-component epoxies used in the transportation industry. As a bonding material AlCu4Mg was used, whose surface was in the first series mechanically and chemically treated. In the second series tested specimens were without the surface treatment. A destructive testing was conducted at a laboratory temperature 22 ± 2 °C and at increased temperatures, i.e. 40, 60 and 80 ± 2 °C. At a mutual comparison of the mechanical treatment and the chemical treatment of the adhesive bonded surface with un-treated surface, the tensile lap-shear strength increased by an average of 57.24 ± 18.52 %. The results show that there is a difference in the tensile lap-shear strength between the test temperatures in the interval 20-80 °C, the decrease was up to 88 %.