Diploma, University Ljubljana, Slovenia, 1954. Doctor Engineering, Technology University, Aachen, Germany, 1957. Doctor of Engineering Habilitation, Technology University, Aachen, Germany, 1961.
Professor, honorary professor, U. Birmingham, United Kingdom, 1964-1972, 73; honorary professor, Aeronautical Institute, Nanjing, China, 1982; research assistant, Technology U., Aachen, 1955-1957; assistant professor, Technology U., Aachen, 1961-1964; professor, head Department, University Ljubljana, Slovenia, since 1972; dean faculty, U. Ljubljana, Slovenia, 1973-1976; rector, U. Ljubljana, Slovenia, 1987-1990; professor, department head, U. Ljubljana, Slovenia, since 1972. Amb. Republican of Slovenia in Sciences, 1992.
Fellow: CIRP (honorary), International Academy Engineering (Russia), Engineering Academy Slovenia (founding president 1989, president 1995—2001, honorary member since 2001), Institutes of Mechanical Engineers, Academy Europae, Slovenian Academy of Sciences and Art (committee chairman since 1979), Society Manufacturing Engineers, International Academy for Production, Engineering and Research (president 1979-1980).
Married Stasa Korbar Peklenik, July 10, 1954 (deceased December 1966). Children: Igor, Alex, Stasa-Marija. Married Marija Caliary, December 8, 1973.
1 child Damian.