Two simulative test methods were used to study galling in sheet forming of two types of stainless steel sheet: austenitic (EN 1.4301) and lean duplex LDX 2101 (EN 1.4162) in different surface conditions. The pin-on-disc test was used to analyse the galling resistance of different combinations of sheet materials and lubricants. The strip reduction test, a severe sheet forming tribology test was used to simulate the conditions during ironing. This investigation shows that the risk of galling is highly dependent on the surface texture of the duplex steel. Trials were also performed in an industrial tool used for high volume production of pump components, to compare forming of LDX 2101 and austenitic stainless steel with equal thickness. The forming forces, the geometry and the strains in the sheet material were compared for the same component. It was found that LDX steels can be formed to high strain levels in tools normally applied for forming of austenitic steels, but tool adaptations are needed to comply with the higher strength and springback of the material.
|Title of host publication||Proceedings Duplex World 2010 Conference & Exhibition|
|Publication status||E-pub ahead of print - 2010|
|Event||Duplex World 2010 Conference & Exhibition - Beaune, France|
Duration: 1 Jan 2010 → …
|Conference||Duplex World 2010 Conference & Exhibition|
|Period||01/01/2010 → …|