0000000000414473

AUTHOR

Hitomi Yamaguchi

showing 4 related works from this author

Study of forming mechanics of magnetic field–assisted single point incremental forming

2022

This paper describes the forming characteristics and mechanics of magnetic field–assisted single point incremental forming (M-SPIF) in which an Nd-Fe-B magnet ball tool is placed on top of a piece of sheet metal and is driven by an Nd-Fe-B magnet placed below the workpiece. To gain an understanding of the force mechanics that power M-SPIF, the tool motion and forming force were experimentally analyzed. In M-SPIF, the forming force is applied multi-directionally, and the resultant force direction is nearly colinear with the polarity of the permanent magnet ball tool. This suggests that the forming characteristics in M-SPIF may be controllable by controlling the magnetic polarity of the tool.

Permanent magnet toolStrategy and ManagementManagement Science and Operations ResearchSingle point increment formingIndustrial and Manufacturing EngineeringAluminum
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Development of Magnetic Field-Assisted Single-Point Incremental Forming

2021

Single Point Incremental Forming (SPIF) has recently introduced the concept of material formability enhancement through localized deformation. Since material is processed by means of a pin tool attached to spindle, physical interference (especially in vertical direction) limits attainable shapes with the conventional process. The aim of the following work is to increase the variety of achievable geometries with SPIF through in-process magnetic field assistance. An innovative configuration managing SPIF tool movement using magnetic force is proposed. With this in mind, a magnet configuration was designed to generate a vertical load able to plastically deform a 0.5 mm thick AA1100 aluminum sh…

Materials sciencechemistryMechanics of MaterialsAluminiumMechanical EngineeringMechanical engineeringchemistry.chemical_elementGeneral Materials ScienceDevelopment (differential geometry)Single pointIncremental sheet formingMagnetic fieldKey Engineering Materials
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Magnetic field-assisted single-point incremental forming with a magnet ball tool

2021

Abstract This paper describes magnetic field-assisted single-point incremental forming (M-SPIF) with a Nd-Fe-B magnet ball tool. In M-SPIF, the tool driven by magnetic force plastically deforms a sheet. The polarity of the magnet tool helps to make the magnetic force (i.e., forming force) more controllable. In creating a truncated cone, the direction of the magnetic force gradually points more outward as the process progresses, and material is forced outwards from the cone center, increasing thinning in M-SPIF, while the cone center remains undeformed in traditional SPIF. Moreover, M-SPIF creates less localized plastic strain than traditional SPIF while forming the desired geometry.

0209 industrial biotechnologyMaterials scienceMechanical EngineeringProcess (computing)Mechanical engineering02 engineering and technologyPlasticityIndustrial and Manufacturing EngineeringMagnetic field020303 mechanical engineering & transports020901 industrial engineering & automation0203 mechanical engineeringCone (topology)Incremental sheet forming Magnetic field Sheet metalMagnetBall (bearing)Single pointSettore ING-IND/16 - Tecnologie E Sistemi Di LavorazionePolarity (mutual inductance)
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History of NAMRI and NAMRC

2019

History of NAMRI and NAMRC

Artificial IntelligenceNAMRI NAMRCSettore ING-IND/16 - Tecnologie E Sistemi Di LavorazioneIndustrial and Manufacturing Engineering
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