Magnetic abrasive finishing of cutting tools for machining of titanium alloys

Yamaguchi, Hitomi; Srivastava, A. K.; Tan, Michael A.; Riveros, Raul E.; Hashimoto, Fukuo

doi:10.1016/j.cirp.2012.03.066

Cited by 60 publications

(21 citation statements)

References 12 publications

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“…Compared to the conventional rigid grinding wheels, the magnetic abrasive brush is a soft and deformable tool. This feature makes it possible to decrease surface roughness of complex shaped parts avoiding part macro geometry reshaping or thermal damaging [6][7][8][9].…”

Section: Introductionmentioning

confidence: 98%

Behavior of the magnetic abrasive tool for cutting edge preparation of cemented carbide end mills

Denkena¹,

Köhler²,

Schindler³

2014

Prod. Eng. Res. Devel.

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Magnetic abrasive processes combine characteristics of grinding and lapping. Due to deformable tool behavior, complex surface shapes and edges can be machined. Therefore, this process is predestined for preparation of drilled cutting tools. High quality finishing results require in depth process expertise. This paper focuses on the behavior of the magnetic abrasive tool taking Magnetfinish Ò kinematics into account. Main characteristics of the magnetic abrasive tool behavior during finishing end mills of 12 mm diameter are reshaping and in-process densification of magnetic abrasive layer. Consequently, flute surface modifications occur only in the cutting edge surrounding area. Furthermore, in-process displacements of magnetic abrasive cause non-uniform cutting edge rounding. SEM images indicate abrasive motion along the cutting edge as the best method to obtain smooth cutting edge surface.

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Section: Introductionmentioning

confidence: 98%

Behavior of the magnetic abrasive tool for cutting edge preparation of cemented carbide end mills

Denkena¹,

Köhler²,

Schindler³

2014

Prod. Eng. Res. Devel.

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“…MAF smooths the tool surface with flexible chains of magnetic particles (hereafter called brushes), which follow the workpiece form [5,6]. In the case of tool finishing, the brushes must generate strong magnetic force while maintaining their flexibility to remove hard material from complicated geometries.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the finishing mechanism, the MAF process can finish the coatings with minimal thickness reduction. In addition, the MAF process, with a proper edge protector, finishes the cutting tool surfaces with minimal influence on the cutting edge rounding by avoiding back-and-forth flow over the cutting edges [5].…”

Section: Introductionmentioning

confidence: 99%

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Magnetic Abrasive Finishing of cutting tools for high-speed machining of titanium alloys

Yamaguchi

Srivastava

Tan

et al. 2014

CIRP Journal of Manufacturing Science and Technology

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“…Authors carried out the experimental work of nanofinishing of uncoated carbide cutting tool using MAF process to improve its tool wear characteristics by reducing friction between chip-tool interfaces. Average surface roughness of 25 and 50 nm is achieved on flank and rake surfaces, respectively [9]. They also investigated magnetic abrasive behavior and internal finishing characteristics of flexible capillary tubes made of heat-treated metastable austenitic stainless steel using MAF process [10].…”

Section: Introductionmentioning

confidence: 99%

Force analysis of magnetic abrasive nano-finishing of magnetic and non-magnetic materials

Jain

Saren

Raghuram

et al. 2016

Int J Adv Manuf Technol

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Finishing is the final operation during manufacturing process of a component. It is time consuming, difficult, and usually a costly operation. Finishing cost can be as high as 15 % of the total production cost. Magnetic Abrasive Finishing (MAF) is an advanced finishing process in which a mixture of non-ferromagnetic abrasive particles and ferromagnetic carbonyl iron particles (CIPs) is used to do finishing operation with the aid of magnetic force. The iron particles form a flexible chain matrix in which the abrasive particles are trapped in between or within the chains. This is called flexible magnetic abrasive brush (FMAB), which when given a relative motion against a (metal/non-metal) surface, it finishes the surface. The present work deals with the effect of the process parameters such as applied magnetic field, concentration of abrasive particles and iron particles in FMAB, and rotational speed of magnet on the finishing forces that are generated during vertical MAF of ferromagnetic (EN-8) and nonferromagnetic material (brass) flat workpieces. Empirical models for force prediction have been developed based on the experimental results. Effect of the applied magnetic field is seen to have the most significant contribution among all the input parameters. Percentage of oil in FMAB is not a significant factor for normal force, but it is a significant factor to the tangential force. The tangential force increases up to 3 % of oil content in FMAB, and it starts decreasing in the range of 3 to 5 % oil content.

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Magnetic abrasive finishing of cutting tools for machining of titanium alloys

Cited by 60 publications

References 12 publications

Behavior of the magnetic abrasive tool for cutting edge preparation of cemented carbide end mills

Behavior of the magnetic abrasive tool for cutting edge preparation of cemented carbide end mills

Magnetic Abrasive Finishing of cutting tools for high-speed machining of titanium alloys

Force analysis of magnetic abrasive nano-finishing of magnetic and non-magnetic materials

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