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Design And Implementation Of An Incremental Sheet Formıng Process For Bending Of High Strength Thick Steel Sheets

BROWSE_DETAIL_CREATION_DATE: 12-03-2018

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BROWSE_DETAIL_TYPE: Thesis

BROWSE_DETAIL_SUB_TYPE: Masters

BROWSE_DETAIL_PUBLISH_STATE: Unpublished

BROWSE_DETAIL_FORMAT: PDF Document

BROWSE_DETAIL_LANG: English

BROWSE_DETAIL_SUBJECTS: Manufactures, Metal manufactures. Metalworking,

BROWSE_DETAIL_CREATORS: Çetin, Barış (Author),

BROWSE_DETAIL_CONTRIBUTERS: Billur, Eren (Advisor),

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Incremental sheet metal forming, incremental bending, high strengthsteels


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As a specific section of armored combat vehichle industry, hull production, for manycase, has a production step for bending of ultra high strength steels (UHSS). Thisbending operation is generally performed by means of high tonnage press brakes inair bending condition. The steels in hull production have very high tensile strengthtvalues compared to conventional mild steel such as 1250 MPa or even higher. Thesestrength levels absolutely require high bending forces, undoubtfully. On the otherhand, incremental sheet forming process has been recently implemented in metalforming industry which is mainly based on the gradual and local excitation of plasticdeformation. This new generation technique has some advantages such as increasingthe formability, eliminating the complex tool requirements and reducing the formingforces reasonably. In this study, basically the potential of incremental formingvprocess in force reduction is investigated. A new incremental bending process is proposed,simulated and experimentally verified within the scope of the study. Throughthe wide range of data obtained from the simulation and experimental efforts, someoptimization could also be conducted on the process parameters. Briefly, the resultsof the incremental bending of UHSS plates are compared with the conventional airbending operation.


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