Effects of incremental depth and tool rotation on failure modes and microstructural properties in Single Point Incremental Forming of polymers

Davarpanah, Mohammad Ali; Mirkouei, Amin; Yu, Xiaoyan; Malhotra, Rajiv; Pilla, Srikanth

doi:10.1016/j.jmatprotec.2015.03.014

Cited by 79 publications

(66 citation statements)

References 20 publications

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“…900 N) at a feed rate of 500 mm/min. Li et al [10] investigated influence of sheet material to produce a truncated cone and a truncated pyramid by experimental tests on AA7075-O sheets. It was found that the predicted forces were in good agreement with the experimental results.…”

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confidence: 99%

Investigation of Process Variables on Forming Forces in Incremental Sheet Forming

Kumar¹,

Gulati²,

Kumar³

2018

IJET

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Abstract-Manufacturing of small batch size products and prototypes are not economical using conventional forming processes as these processes require dedicated and highly specialized equipments such as forming presses, dies, and punches. Incremental Sheet Forming (ISF) process has been confirmed as quiet economical process for rapid prototyping and batch type production. In this work, process variables are investigated on axial peak forces on AA2024-O sheets. A strain gauge based dynamometer has been used to record axial peak forces during incremental process. Combination of higher wall angle and higher tool diameter leads to larger axial forces which can be limitation of the capacity of the machine tool and forming tools used in the process. Higher sheet thickness not only requires larger forming forces to form the components but also increases formability of the material.

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confidence: 99%

Investigation of Process Variables on Forming Forces in Incremental Sheet Forming

Kumar¹,

Gulati²,

Kumar³

2018

IJET

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“…They found that spindle rotational sped in- In view of these results from 15 papers, it appears to be evident that with increasing the rotational speed over 0 rpm will probably bring the improvement in surface quality. Two optimized paper [60] [61] upper limit will be discovered when contact between metal sheet and tool is too high and surface fracture began. These papers shows that there would be no example where stationary forming tool should be utilized.…”

Section: Spindle Rotational Speedmentioning

confidence: 99%

Effects of Forming Tools and Process Parameters on Surface Roughness in Incremental Sheet Forming, a Review

Khalil

Aziz

Jahanzaib

et al. 2018

Adv. Sci. Technol. Res. J.

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Literature has vastly advocated for incremental sheet forming as a significant process for formation of sheet metal components, because of its higher formability in comparison with the rest of metal forming processes such as deep drawing and stamping. Due to high formability of incremental sheet forming it becomes important to investigate the main factors, influencing the quality of forming products. However, less attention has been given to investigate the inconsistencies reflected often in determining the effect of multiple forming parameters and parametric interactions comprising of spindle rotational speed and feed rate, tool size and sheet thickness, sheet thickness and step depth. This study investigates the effect of various principal factors including tool type, tool size, sheet thickness, spindle speed, feed rate, step increment including and their respective interaction on surface roughness. Research data was collected by undertaking extensive literature review of previous studies on incremental sheet forming regarding surface quality. A quantitative one way analysis of variance (ANOVA) was employed to analyze the significance and contribution of factors influencing surface quality of sheet forming. The findings highlight the contribution of forming parameters and their combined interactions on surface roughness. Based on the empirical findings, this study derives implications for the optimization of tool type, parametric interactions among principal factors and their respective optimized operational range for incremental sheet forming.

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“…Several trials were reported for various materials being tested in ISF including composite and high-strength materials. Preliminary studies for composite materials focused on the formability and failure mechanics of polymers [33] or metal-polymer/foam/fiber [34][35][36] by the SPIF process. Davarpanah et al [37] presented a series of experiments for thermoplastics using SPIF, conversational DSIF and ADSIF processes to give a comprehensive assessment.…”

Section: Introductionmentioning

confidence: 99%

Double-Sided Incremental Forming: A Review

Peng

Becker

2019

Journal of Manufacturing Science and Engineering

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Incremental sheet-forming (ISF) processes have been developed rapidly in the past two decades. Its high flexibility and easy operability have a significant appeal for industrial applications, and substantial progress has been made in fundamental understanding and demonstration of practical implementation. However, there are a number of obstacles including achievable accuracy and instability in material deformation, which are considered as a main contributing factor for preventing the ISF process to be widely used in industry. As a variant of the general ISF process, double-sided incremental forming (DSIF) uses an additional supporting tool in the opposite side of the workpiece, maintains the flexibility, and at the same time improves the material deformation stability and reduces material thinning. In recent years, there has been increased research interest in looking into DSIF-specific material deformation mechanisms and investigation. This paper aims to provide a technical review of the DSIF process as benchmarked with single-point incremental forming (SPIF). It starts with a brief overview of the current state of the art of both SPIF and DSIF. This is followed by a comparative study between SPIF and DSIF with the key research challenges identified. This leads to a recommendation of future directions for DSIF focused research.

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Effects of incremental depth and tool rotation on failure modes and microstructural properties in Single Point Incremental Forming of polymers

Cited by 79 publications

References 20 publications

Investigation of Process Variables on Forming Forces in Incremental Sheet Forming

Investigation of Process Variables on Forming Forces in Incremental Sheet Forming

Effects of Forming Tools and Process Parameters on Surface Roughness in Incremental Sheet Forming, a Review

Double-Sided Incremental Forming: A Review

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