Surface texture influences friction and transfer layer formation during sliding. In the present investigation, various kinds of surface texture with varying roughness were produced on steel plates. Pins made of Mg-8Al alloy were then slid against the prepared steel plates using inclined pin-on-plate sliding tester to understand the role of surface texture of the harder surface and load on coeff...

The aim of this work is to develop a die material selection criterion for aluminum hot stamping applications. has been based on the back-to-back comparison set reciprocating friction and wear tests. Three representatives belonging different families have selected study: cold steel, cast iron. These tool materials combined with an exemplary member from two heat treatable families: 2XXX 6XXX. Eac...

Duodena from 20-day-old chick embryos can be maintained in large scale organ culture on specially designed stainless-steel grids in contact with serum-free medium for 48 h with excellent preservation of mucosal structure at both the light and electron microscope levels . Although mitotic rate was subnormal, several other factors attest to the essential viability of the cultured intestine : L-le...

In most forming processes based on tailored blanks, the tool material remains the same as that of sheet metal blanks without tailored properties. A novel concept of lightweight construction for deep drawing tools is presented in this work to improve the forming behavior of tailored blanks. The investigations presented here deal with the forming of tailored blanks of dissimilar strengths using t...

Laser assisted machining is an alternative to conventional machining of hard and/or difficult-to-process materials which involves pre-heating of a focused area with a laser beam over the surface of the workpiece to cause localized thermal softening along the path of the cutting action. The main advantage that laser assisted machining has over conventional machining is the increased material rem...

Unternehmen setzen zunehmend mehrere Best-PracticeReferenzmodelle (BPRM) der IT-Governance ein. Ein unsystematischer Einsatz von mehreren BPRM kann erhebliche Ineffizienzen bergen, daher ist ein systematischer kombinierter Einsatz erstrebenswert. Um den kombinierten Einsatz mehrerer Modelle gezielt zu unterstützen, sind genaue Kenntnisse der Kombinationsmöglichkeiten von BPRM in einer Multi-Mod...

For efficient manufacture of moulds and dies and in order to meet the unstable market situation, a well organised reconfigurable manufacturing system is required. The geometric features of moulds and dies are not the same as discrete parts. They are contained elements on a block of steel and are usually in the form of contours, slots, corners, slope faces, curved surfaces and cavities. A lot of...