On the conventional simple spinning of cylindrical aluminium cups

Analysis of the Effect of Process Parameters on Part Wall Thickness Variation in Conventional Metal Spinning of Cr-Mn Austenitic Stainless Steels

“…The finding related to the tool path profile and feed ratio influence on wall thickness variation agrees with the results of other authors who have studied this problem experimentally and by applying FE analysis for other types of spun part materials (mild steel, aluminium) [12], [14], [17] and [24]. 6.…”

“…In fact, a non-uniform distribution of wall thickness is observed and therefore the spinning process must be optimized in order to produce components with a minimal variation in wall thickness. Based on experimental studies that have been carried out up to date, the spun part thickness distribution depends mainly on the number of tool passes, the offset of each pass from the other [9], as well as the tool feed ratio [10], shape of produced part [11], roller noise radius [4] and [12], friction [13] and first toolpass trajectory [14] to [16]. Low feed rates, large nose radius and multi-pass spinning are recommended to achieve uniform part wall thickness.…”

Optimization of conventional spinning process parameters by means of numerical simulation and statistical analysis

“…In order to obtain a more uniform thickness distribution, a low feed rate and a negative relative clearance should be used. High feed rates increase the contact area between the roller and workpiece that tends to decrease the applied stresses [2]. Therefore, the workpiece deformation decreases and thus, a high thickness variation is found.…”

“…As shown, increasing the axial feed rate has a significant impact on increasing springback and an increase in inner diameter at the open end is found. It is known that a low feed rate is usually accompanied by an over-rolling between the roller and sheet material as suggested by El-Khabeery et al [2] which leads to an increase in temperature in the deformation zone. This affects the material elasticity significantly and reduces the material recovery.…”

“…The conventional spinning of cylindrical aluminium cups has been investigated by El-Khabeery et al [2] who analysed the effect of feed rate and roller nose radius on the wall thickness, cup inner diameter, springback, spinning ratio, surface roughness, and spinning forces. They concluded that as the roller angle and feed rate decrease, most of the measures of spinning quality improve.…”