Productivity and quality improvement by optimization of milling parameters of super alloy

Jackson, AM; Sabarish, R.; Raj, Sumit; Ahmed, Amran

doi:10.1016/j.matpr.2020.05.415

Cited by 1 publication

(2 citation statements)

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“…Pareto analysis is a statistical tool used to help determine the causes that make up a problem and their level of significance. 22 Pareto analysis can also be used in machining operations [23][24][25][26][27][28] and sheet metal forming operations [29][30][31] to determine parameters efficiency. In order to determine the efficiency of the parameters as a percentage (%), all standardized effects of the parameters were summed and divided by the standardized effect of the desired parameter.…”

Section: Resultsmentioning

confidence: 99%

“…22 However, Pareto analysis can also be used outside of the quality improvement method. In addition to determining the effectiveness of the parameters in machining operations such as turning 23 and milling, [24][25][26][27][28] it can also be used in the sheet metal forming operations such as ISF 29,30 and deep drawing. 31 Rauch et al 12 used to form the AA5083 alloy with three different forming strategies based on different toolpaths.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the incremental sheet forming process and process parameters on aluminum sheets based on the vertical step sizes

Malyer

Sönmez

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The Incremental Sheet Forming (ISF) is an effective forming method developed especially for rapid prototyping and small-batch production of sheet metals. The selection of parameters (in particular, vertical step size and toolpath geometry) in ISF is crucial. Besides, each parameter has different effects on the desired geometry, sheet thickness, forming time, and productivity. In this study, the ISF process was analyzed by investigating the effects of ISF parameters. For this purpose, AA5754 sheets were formed by different ISF parameters. The effects of toolpath strategies (based on the vertical step size) were examined with three spindle speeds and three feed rates. To achieve that objective, constant, increasing, and decreasing vertical step sizes were used for the first time in the same study. After the forming, the forming time, geometric tolerance, and thickness values were analyzed. Besides, the efficiency of each parameter on the ISF process was investigated with the Pareto analysis. It has been revealed that each strategy has some advantages and disadvantages in ISF. The shortest forming time (1.55 min), the best geometric tolerance values (−0.05 mm, +0.2 mm), and the best thickness values (0.58 mm, 0.51 mm) were achieved following toolpath strategy 1, strategy 2, and strategy 3, respectively. The Pareto analysis showed that spindle speed and feed rate have a significant effect on toolpath strategies. The results obtained from this study will shed light on the effective advancement of small-batch production of sheets. Furthermore, the study contributes to the determination of parameters according to which of the sheet metal properties are desired.

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