Preface

Excerpt

This issue contains 13 strength-related papers from contributions presented at the international scientific conferences Progressive Technologies and Materials in Mechanical Engineering (PRO-TECH-MA 2017) and SURFACE ENGINEERING 2017, which were jointly held by the Technical University of Koðice in Slovakia in cooperation with the Rzeszów University of Technology, and the Lublin University of Technology, with the ambition to foster knowledge and experience exchange between the scientists from the Carpathian region. This year was special, as the Technical University of Koðice celebrated its 65th anniversary. The conferences took place in Bardejov Spa located in the north-eastern part of Slovakia near borders with Poland on June 20–23, 2017 and included about 70 participants from Czech Republic, Poland, Slovakia, and Ukraine. …