점진적 롤 성형 공정을 이용한 이중 곡률을 갖는 일반적인 사각형 시편의 성형 방법

Forming Method to Manufacture a Doubly Curved General Quadrilateral Sheet Metal Using the Incremental Roll Forming Process

In order to manufacture a doubly curved sheet metal effectively, a flexible incremental roll forming process has been developed by adopting the advantages of the incremental forming process and the roll forming process by combining inherent flexibility of the incremental forming process and continuous deformation of the roll forming process. The forming method has been further enhanced to form general quadrilateral blanks (including a square, a rectangle, a symmetrical trapezoid and an asymmetrical trapezoid, etc.) into doubly curved shapes by controlling the forming paths developed by various experiments.