Influence of process parameters on surface roughness and forming time of Al-1100 sheet in incremental sheet metal forming
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In this paper, the effect of step depth, feed rate and wall angle on the surface roughness and forming time have been investigated for constant 1.2 mm thick Al-1100 sheet and at a constant spindle speed of 1300 rpm.Abstract:
Product quality and production time are critical constraints in sheet metal forming. These are normally measured in terms of surface roughness and forming time, respectively. Incremental sheet metal forming is considered as most suitable for small batch production specifically because it is a die-less manufacturing process and needs only a simple generic fixture. The surface roughness and forming time depend on several process parameters, among which the wall angle, step depth, feed rate, sheet thickness, and spindle speed have a greater impact on forming time and surface roughness. In the present work, the effect of step depth, feed rate and wall angle on the surface roughness and forming time have been investigated for constant 1.2 mm thick Al-1100 sheet and at a constant spindle speed of 1300 rpm. Since the variable effects of these parameters necessitate multi-objective optimization, the Taguchi L9 orthogonal array has been used to plan the experiments and the significance of parameters and their interactions have been determined using analysis of variance (ANOVA) technique. The optimum response has been brought out using response surfaces. Finally, the findings of response surface method have been validated by conducting additional experiments at the intermediate values of the parameters and these results were found to be in agreement with the predictions of Taguchi method and response surface method.read more
Citations
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References
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Analysis of Material Formability in Incremental Forming
TL;DR: In this article, material formability in incremental forming has been investigated and several tests were developed, aimed to the achievement of different straining conditions in the material and consequently to the determination of Forming Limit Diagrams for progressive forming operations.
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Study on prediction of surface quality in machining process
TL;DR: In this paper, the authors reviewed the methodologies and practice that are being employed for the prediction of surface profile and roughness, each approach with its advantages and disadvantages is summarized.
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TL;DR: In this article, the authors deal with the optimization of the tool path in two-point sheet incremental forming with full die, in a particular asymmetric sheet incremental form configuration, in order to reproduce an automotive component with the best dimensional accuracy, the best surface quality and the lowest sheet thinning.
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Review on the influence of process parameters in incremental sheet forming
TL;DR: A detailed review of the current state-of-the-art of ISF processes in terms of its technological capabilities and specific limitations with discussions on the ISF process parameters and their effects on ISF is provided in this paper.
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Analysis of surface roughness for parts formed by computer numerical controlled incremental forming
E Hagan,Jack Jeswiet +1 more
TL;DR: In this paper, surface roughness tests were performed on computer numerical controlled (CNC) incrementally formed sheet metal parts using various tool depth increments and spindle speeds using a non-contact me...
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