Experimental Study the Effect of Tool Geometry on Dimensional Accuracy in Single Point Incremental Forming (SPIF) Process

Bedan, Aqeel Sabree; Habeeb, Halah Ali

doi:10.29194/njes21010108

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…Radu and Cristea (2013) demonstrated that during SPIF of products, a greater feed rate reduces part accuracy and higher tool rpm stimulates part accuracy. Bedan and Habeeb (2018) claimed higher dimensional accuracy in Al 1050 parts at higher spindle speed; similar results were reported by Palumbo and Brandizzi (2012) in SPIF of titanium alloy. Sbayti et al (2020) concluded that the shape errors between the attained geometry and the proposed CAD model are reduced by combining numerical models and optimization methodologies.…”

Section: Introductionsupporting

confidence: 78%

Improved geometric accuracy in single-point incremental forming of aerospace superalloy 625 using Taguchi desirability function analysis

Bishnoi

Chandna

2023

AEAT

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Purpose This present research aims to identify the optimum process parameters for enhancing geometric accuracy in single-point incremental forming of aviation-grade superalloy 625. Design/methodology/approach The geometric accuracy has been measured in terms of half-cone-angle, concentricity, roundness and wall-straightness errors. The Taguchi Orthogonal-Array L9 with desirability-function-analysis has been used to achieve improved accuracy. Findings To achieve maximum geometric accuracy, the optimum setting having a tooltip diameter of 10 mm, a step-size of 0.2 mm and a tool rotation speed (TRS) of 900 RPM has been derived. With this setting, the half-cone-angle accuracy increases by 42.96%, the concentricity errors decrease by 47.36%, the roundness errors decline by 45.2% and the wall straightness errors reduce by 1.06%. Practical implications Superalloy 625 is a widespread nickel-based alloy, finding enormous applications in aerospace, marine and chemical industries. Originality/value It has been recommended to increase TRS, reduce step-size and use moderate size tooltip diameter to enhance geometric accuracy. Step-size has been found to be the governing parameter among all the parameters.

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Section: Introductionsupporting

confidence: 78%

Improved geometric accuracy in single-point incremental forming of aerospace superalloy 625 using Taguchi desirability function analysis

Bishnoi

Chandna

2023

AEAT

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“…Experimental verification was carried out using different tool paths and materials in the non-axisymmetric part. Aqeel Sabree Bedan [10] studied the influence of the ball tool, the hemispherical tool, and the fillet tool on the part accuracy of AL 1050 sheet metal by an NC (Numerical Control) vertical milling machine. It was found that the tool head diameter had the most significant effect on the geometric accuracy.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of Single Point Incremental Forming Force with Static Pressure Support and Ultrasonic Vibration

Liu

Yang

et al. 2019

Materials

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In order to solve the problem of low accuracy caused by instability and springback during the single point incremental forming (SPIF) process, static pressure support (SPS) and ultrasonic vibration (UV) are introduced into the technology for auxiliary forming. In order to qualitatively and quantitatively study the mechanism of static pressure support–ultrasonic vibration-single point incremental forming (SPS-UV-SPIF) force, a typical truncated cone is used as the research object. The working principle and motion rules of the technology are analyzed. The sheet micro-element of the sidewall area is taken as an analysis object. The spatial stress balance equation of the sheet is constructed. The various stresses are integrated and calculated. The forces in each area of the sheet are analyzed and modeled. Finally, an analytical model for SPS-UV-SPIF force is established. The influence law of the static pressure parameter and the vibration parameter on the forming force is obtained. The corresponding SPS system and UV system are designed. The Kistler forming force test system is built. The experimental results are consistent with the theoretical analysis results, which verifies the correctness of the analytical model.

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“…There are many different incremental forming (IF) technologies that have been developed, including SPIF, Two-Point Incremental Forming (TPIF), and Double-Sided Incremental Forming (DSIF) [4]. Comparing with the other ISF types, SPIF is now the most commonly used incremental forming technique [5], as revealed in Figure 1 [6].…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Investigation of the Effect of Strength of Aluminum 6061 Alloy on Thickness Reduction in Single-Point Incremental Forming

Abbas,

Mansor

2023

Adv. Sci. Technol. Res. J.

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Single-point incremental forming (SPIF) is a kind of incremental sheet forming that is significantly novel. This method involves the utilization of a computer numerical control (CNC) machine to control the path of a forming tool, which is produced by a computer-aided manufacturing program (CAM), as it stretches a metallic sheet to achieve a desired shape. Low patch output and customized parts are good candidates for this kind of technique. The aim of the present investigation is first to study the effect of Aluminum alloy 6061 strength on the thickness distribution and thinning ratio in SPIF and then select the optimal strength to ensure uniform thickness and minimize the thinning. In order to achieve this, two different strengths of Al 6061 sheets have been employed: One used in its original form and the other heat treated to change its strength. Specimens have been prepared using the SPIF procedure for a truncated cone with dimensions of 120 mm diameter and 40 mm depth; the forming slope is 50°, and Solid work program was used to create the tool path. The thickness reduction along the wall portions was analyzed employing the finite element method using Abaqus software, and the numerical results were experimentally confirmed, where the deviation ratio between simulation and experiment was 3% for sample 1 and 5% for sample 2. The findings manifested that the specimens exhibited a consistent distribution of thickness, and the maximum thinning ratio decreased from 30% to 28.5% as the yield strength decreased from 278 MPa to 68.7 MPa, respectively.

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Experimental Study the Effect of Tool Geometry on Dimensional Accuracy in Single Point Incremental Forming (SPIF) Process

Cited by 4 publications

References 1 publication

Improved geometric accuracy in single-point incremental forming of aerospace superalloy 625 using Taguchi desirability function analysis

Improved geometric accuracy in single-point incremental forming of aerospace superalloy 625 using Taguchi desirability function analysis

Modeling and Analysis of Single Point Incremental Forming Force with Static Pressure Support and Ultrasonic Vibration

Numerical and Experimental Investigation of the Effect of Strength of Aluminum 6061 Alloy on Thickness Reduction in Single-Point Incremental Forming

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