Author/Authors :
Şen, Nuri Karabük Üniversitesi - Mühendislik Fakültesi, Turkey , KURGAN, Naci Ondokuz Mayıs Üniversitesi - Mühendislik Fakültesi, Turkey , KARAAĞAÇ, İbrahim Gazi Üniversitesi - Teknoloji Fakültesi, Turkey , ULUER, Onuralp Gazi Üniversitesi - Teknoloji Fakültesi, Turkey
Title Of Article :
An Experimental Investigation of the Lubrication Effects on Formability In Warm Deep Drawing Process
Abstract :
The lubrication reduces to effects of friction forces that it is between die and blank holder in deep drawing process. The affecting factors to friction forces are material, surface quality of die and blank holder, temperature, blank holder force and lubrication properties. In this study, the effects of lubricant type on drawing ratio (DR) and forming force have been investigated experimen-tally. Graphite spray and composition of graphite spray-Teflon (PTFE) materials were used as lubricant materials. Compared with the use of spray, in case of using graphite and Teflon spray composition as lubrication type, it was observed that friction force was decreased. As a result of this decrease, the forming force decreased. The depending on lubrication type, the DR in-creased maximum 11.26 % for HC300LA sheet material. Also, The DR increased maximum 11.51 % for HC420LA sheet mate-rial.
NaturalLanguageKeyword :
Warm deep drawing , lubrication , graphite spray , Teflon
JournalTitle :
Journal Of Polytechnic
